阅读说明：本技术 一种基于入光量高效调节的摄谱仪 (Spectrograph based on high-efficient regulation of income light ) 是由 彭旸 彭志平 于 2021-07-09 设计创作，主要内容包括：本发明公开了一种基于入光量高效调节的摄谱仪,属于摄谱仪领域,本方案可以实现本装置在使用过程中,通过推柄推动着滑块对套筒内的空气挤压,致使与之相互连通的气囊包膨胀向右侧移动,将狭缝刀口之间的间隙进行遮挡,防止灰尘和脏物从间隙中进入可调狭缝内,在调节可调狭缝的通光口径时,因气囊包在回复原状态的过程中,储存气囊内酒精受挤压从隔膜渗透处,吸附线将渗透出来的酒精进行吸收,从而将狭缝刀口表面的尘埃清理干净,而当可调狭缝对光源入光量进行调节时,透明膨胀气囊因光源照射的热量进行膨胀,光源照射在凸镜球表面,凸镜球将照射在其表面的光源折射进可调狭缝调节后的通光孔,使得可调狭缝的光源入光量提高。(The invention discloses a spectrograph based on high-efficiency adjustment of incident light, which belongs to the field of spectrometers, and the scheme can realize that when the spectrograph is used, a sliding block is pushed by a push handle to extrude the air in a sleeve so that an air bag packet communicated with the sliding block expands to move towards the right side, a gap between slit knife edges is shielded, dust and dirt are prevented from entering an adjustable slit from the gap, when the light transmission aperture of the adjustable slit is adjusted, the air bag packet is in the process of returning to the original state, the alcohol in the air bag is stored and extruded from a diaphragm, an absorption line absorbs the permeated alcohol, so that the dust on the surface of the slit knife edge is cleaned, when the adjustable slit adjusts the incident light quantity of a light source, the transparent expansion air bag expands due to the heat irradiated by the light source, the light source irradiates the surface of a convex lens ball, and the light source irradiating the surface of the convex lens ball refracts the light source irradiating the surface into a light transmission hole after the adjustment of the adjustable slit, the light inlet quantity of the light source with the adjustable slit is improved.)

1. The utility model provides a spectrograph based on high-efficient regulation of incident light, includes experiment work platform (1), its characterized in that: the device is characterized in that a CCD light distribution measuring instrument (2) is installed at the upper end of the experiment working platform (1), an imaging focusing mechanism (3) is fixedly connected to the left end of the CCD light distribution measuring instrument (2), a spectrum viewing window (4) is fixedly connected to the upper end of the imaging focusing mechanism (3), the spectrum viewing window (4) is communicated with the imaging focusing mechanism (3), a reflector rotating adjusting hand wheel (5) is rotatably connected to the outer end of the imaging focusing mechanism (3), a plurality of uniformly distributed support frames (6) are fixedly connected to the upper end of the experiment working platform (1), an imaging pipeline (7) is inserted between the support frames (6), the imaging pipeline (7) is fixedly connected with the imaging focusing mechanism (3), a prism table rotating adjusting mechanism (8) is in threaded connection with the lower side of the imaging pipeline (7), and a prism cassette (9) is fixedly connected to the left end of the imaging pipeline (7), prism magazine (9) outer end is kept away from one end fixedly connected with aim straight pipe way (10) of formation of image pipeline (7), adjustable slit (11) are installed to aim straight pipe way (10) outer end, experiment work platform (1) outer end fixedly connected with bracing piece (30), bracing piece (30) outer end sliding connection has lamps and lanterns pipe (12), lamps and lanterns pipe (12) lower extreme fixedly connected with protection casing (13), light trap (14) have been dug to protection casing (13) outer end, bracing piece (30) outer end is inserted and is equipped with locking screw (15), locking screw (15) and lamps and lanterns pipe (12) threaded connection, sliding connection has slit edge of a knife (31) between adjustable slit (11) inner wall, slit edge of a knife (31) outer end is dug recess (32), be equipped with in recess (32) and hinder dust device.

2. The spectrometer of claim 1, wherein the spectrometer comprises: hinder dust device include with recess (32) inner wall fixed connection's sleeve (33), sleeve (33) outer end is inserted and is equipped with connecting rod (34), connecting rod (34) outer end fixedly connected with pushes away handle (16), one end fixedly connected with slider (17) that pushes away handle (16) are kept away from in connecting rod (34), slider (17) and sleeve (33) inner wall sliding connection, it has bleeder vent (18) to open the chisel in sleeve (33) inner bottom end, it is connected with a pair of rubber mounting (19) that support tightly each other to rotate between bleeder vent (18) inner wall, sleeve (33) outer end fixedly connected with gasbag package (20), gasbag package (20) are linked together with rubber mounting (19), the one end that gasbag package (20) are close to slit edge of a knife (31) is equipped with wiping arrangement, gasbag package (20) right-hand member is equipped with light condensing equipment.

3. The spectrometer of claim 2, wherein the spectrometer comprises: wiping arrangement includes and stores gasbag (22) with gasbag package (20) outer end fixed connection, it has opening (23) to store gasbag (22) outer end cutting, fixedly connected with diaphragm (24) between opening (23) inner wall, it is filled with alcohol (25) to store gasbag (22), a plurality of evenly distributed's of alcohol (25) outer end fixedly connected with absorption line (26), absorption line (26) contact with slit edge of a knife (31).

4. The spectrometer of claim 2, wherein the spectrometer comprises: the light condensing device comprises a transparent expansion air bag (21) fixedly connected with the right end of an air bag package (20), light-blocking powder (27) is filled in the inner cavity of the transparent expansion air bag (21), a fixing line (28) is fixedly connected between the inner walls of the light-blocking powder (27), and a plurality of uniformly distributed convex mirror balls (29) are fixedly connected to the outer end of the fixing line (28).

5. The spectrometer of claim 2, wherein the spectrometer comprises: an extension spring is fixedly connected between the push handle (16) and the sleeve (33), the extension spring is positioned on the outer side of the connecting rod (34), and the extension spring is made of stainless steel materials.

6. The spectrometer of claim 2, wherein the spectrometer comprises: the outer ends of the pair of rubber sealing sheets (19) are fixedly connected with sealing gaskets, and the sealing gaskets are filled with mutually attracted magnetic powder.

7. The spectrometer of claim 1, wherein the spectrometer comprises: one end of the slit knife edge (31) far away from the transparent inflatable air bag (21) is fixedly connected with a limiting plate, and the limiting plate is made of rubber materials.

8. A spectrometer based on efficient adjustment of light incidence according to claim 3, characterised in that: the adsorption thread (26) is made of silk cotton material.

9. The spectrometer of claim 2, wherein the spectrometer comprises: the outer end of the push handle (16) is provided with a spherical groove, a ball is rotationally connected in the spherical groove, and the ball is in contact with the groove (32).

Technical Field

The invention relates to the field of spectrographs, in particular to a spectrograph based on efficient adjustment of incident light.

Background

The spectroscopy research is the generation of the spectrum of each substance and the interaction between the substance, the spectrum is the ordered arrangement of electromagnetic wave radiation according to the wavelength, through the research of the spectrum, people can obtain the knowledge of the energy level structure of atoms, molecules and the like, the electronic configuration, the property of chemical bonds, the reaction kinetics and other various substance structures, and also provides an important qualitative and quantitative analysis method in the chemical analysis, and the emission spectrum can be divided into three different types of spectra: linear spectra, band spectra, continuous spectra, linear spectra arising mainly from atoms, band spectra arising mainly from molecules, continuous spectra arising mainly from incandescent solid or gas discharges.

At present, in the use process of a spectrograph, whether dust exists on a slit knife edge or not needs to be checked because burrs are more on an acquired spectrum curve, so that the slit knife edge is cleaned, the working efficiency is reduced, and meanwhile, because the slit knife edge is sharp, the slit knife edge is mutually closed and is easy to curl, so that the knife edge is damaged and destroyed, a part of dust and impurities can invade, and the influence on spectrum research can be generated.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a spectrograph based on high-efficiency adjustment of incident light, which can realize that when the spectrograph is used, the push handle is pressed to push the slide block to extrude the air in the sleeve, so that the air bag packet communicated with the slide block expands to move towards the right side, a gap between slit knife edges is shielded, dust and dirt are prevented from entering the adjustable slit from the gap, the protective cover is screwed on the adjustable slit, the invasion of the dust and the dirt is further prevented, when the light aperture of the adjustable slit is adjusted, the air bag packet is gradually restored to the original state by pulling back the push handle, and in the process of restoring to the original state, the alcohol in the air bag is extruded from a diaphragm penetration part, the absorption line absorbs the permeated alcohol, and the absorption line wipes the slit knife edge surface by the process of the air bag for moving in the original state, the dust on the surface of the slit knife edge is cleaned, when the light source light inlet quantity is adjusted by the adjustable slit, a part of light source is irradiated on the transparent expansion air bag, at the moment, the transparent expansion air bag is expanded due to the heat irradiated by the light source, so that the light blocking powder is gradually dispersed, meanwhile, the light source is further irradiated on the surface of the convex lens ball, the light source irradiated on the surface of the convex lens ball is refracted into the light through hole after the adjustment of the adjustable slit, and the light source light inlet quantity of the adjustable slit is improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A spectrograph based on high-efficiency adjustment of incident light comprises an experimental working platform, wherein a CCD light distribution measuring instrument is mounted at the upper end of the experimental working platform, an imaging focusing mechanism is fixedly connected to the left end of the CCD light distribution measuring instrument, a spectrum viewing window is fixedly connected to the upper end of the imaging focusing mechanism and is communicated with the imaging focusing mechanism, a reflector rotation adjusting hand wheel is rotatably connected to the outer end of the imaging focusing mechanism, a plurality of uniformly distributed support frames are fixedly connected to the upper end of the experimental working platform, an imaging pipeline is inserted between a pair of the support frames and is fixedly connected with the imaging focusing mechanism, a prism table rotation adjusting mechanism is in threaded connection with the lower side of the imaging pipeline, a prism cassette is fixedly connected to the left end of the imaging pipeline, a quasi-straight pipeline is fixedly connected to the outer end of the prism cassette, which is far away from the imaging pipeline, the outer end of the quasi-straight pipeline is provided with an adjustable slit, the outer end of the experimental working platform is fixedly connected with a supporting rod, the outer end of the supporting rod is connected with a lamp tube in a sliding manner, the lower end of the lamp tube is fixedly connected with a protective cover, the outer end of the protective cover is provided with a light hole in a chiseling manner, the outer end of the supporting rod is inserted with a locking screw which is in threaded connection with the lamp tube, a slit knife edge is connected between the inner walls of the adjustable slit in a sliding manner, the outer end of the slit knife edge is provided with a groove in a chiseling manner, a dust blocking device is arranged in the groove, the device needs to be arranged in a darkroom, a rotary indicating pointer is moved to the scale indicating central position of an experimental instrument panel by rotating a rotary adjusting mechanism of a prism table, an upper cover of a prism cassette is opened, the prism is placed on a prism rotating table, and a light source is placed in front of the adjustable slit to be lightened to be aligned with the light passing caliber of the straight pipeline, rotating a reflector rotation adjusting hand wheel clockwise to the bottom, finely adjusting a prism to enable a light spot seen through a spectrum viewing window to be strongest, pressing the prism, keeping the light spot at the center position of the spectrum viewing window, taking out a protective cover at the outer end of an adjustable slit, adjusting the light transmission caliber of the protective cover to be about 0.5mm, installing the protective cover on a quasi-straight pipeline, installing the adjustable slit at a vertical position, rotating the adjustable slit until the spectral line on a film is in the vertical direction, adjusting the light transmission caliber of the adjustable slit to be slowly reduced, and observing spectral line change on the spectrum viewing window by using a spectrum viewing mirror until the brightness and the width of the spectral line are moderate and the spectral line image is clear.

Furthermore, the dust blocking device comprises a sleeve fixedly connected with the inner wall of the groove, a connecting rod is inserted in the outer end of the sleeve, a push handle is fixedly connected with the outer end of the connecting rod, a sliding block is fixedly connected with one end, far away from the push handle, of the connecting rod, the sliding block is in sliding connection with the inner wall of the sleeve, an air hole is formed in the inner bottom end of the sleeve, a pair of rubber sealing sheets which are mutually abutted tightly are rotatably connected between the inner walls of the air hole, an air bag is fixedly connected with the outer end of the sleeve and is communicated with the rubber sealing sheets, a wiping device is arranged at one end, close to the slit knife edge, of the air bag, and a light gathering device is arranged at the right end of the air bag. The push handle pushes the sliding block to extrude air in the sleeve, so that the air in the sleeve pushes a pair of rubber sealing pieces which are tightly abutted to each other due to pressure, the air bag package communicated with the air bag package is expanded to move towards the right side, a gap between the knife edges of the slits is shielded, dust and dirt are prevented from entering the adjustable slits from the gap, meanwhile, the protective cover is screwed on the adjustable slits, and the dust and the dirt are further prevented from invading.

Further, the wiping arrangement includes the storage gasbag with gasbag package outer end fixed connection, it has the circulation hole to cut in the storage gasbag outer end, fixedly connected with diaphragm between the circulation hole inner wall, it is filled with alcohol to store the gasbag intussuseption, a plurality of evenly distributed's of alcohol outer end fixed connection absorption line, the absorption line contacts with the slit edge of a knife, for preventing that the more slit edge surface of burr has dust on the spectral curve who gathers, when adjusting the clear aperture of adjustable slit, pull back the push handle because of needs, make gasbag package resume original state gradually, and in the in-process of resuming original state, because of the inflation of gasbag package causes the extrusion force to storage gasbag, make alcohol in the storage gasbag receive the extrusion from diaphragm infiltration department, the absorption line absorbs the alcohol that permeates out, contact gasbag package resumes original state simultaneously and cleans slit edge surface, and cleaning dust on the surface of the slit knife edge.

Furthermore, the light condensing device comprises a transparent expansion air bag fixedly connected with the right end of the air bag body, light-blocking powder is filled in the inner cavity of the transparent expansion air bag, a fixing line is fixedly connected between the inner walls of the light-blocking powder, the outer end of the fixing line is fixedly connected with a plurality of uniformly distributed convex lens balls, when the light source incident quantity is adjusted by the adjustable slit, a part of light source is irradiated on the transparent expansion air bag, the transparent expansion air bag expands due to the heat irradiated by the light source at the moment, the light-blocking powder is gradually dispersed, meanwhile, the light source is further irradiated on the surface of the convex lens balls, the light source irradiated on the surface of the convex lens balls is refracted into a light through hole after the adjustment of the adjustable slit, and the light source incident quantity of the adjustable slit is further improved.

Further, push away fixedly connected with extension spring between handle and the sleeve, extension spring is located the connecting rod outside, extension spring adopts stainless steel material to make, through setting up extension spring, can make when the shrink gasbag package, the effect pulling that resets with the help of extension spring pushes away the handle can be more convenient, simultaneously because of adopting stainless steel material, can be so that extension spring's life strengthens greatly, is difficult for leading to corroding to rust because of the air.

It is further, a pair of the equal fixedly connected with of rubber mounting outer end is sealed fills up, sealed intussuseption of filling up is filled with the magnetic powder of inter attraction, and through setting up sealed pad and magnetic powder, can make the inside air seal degree of sleeve higher, is difficult for causing and reveals, and gasbag package shrink is more thorough simultaneously.

Furthermore, the one end fixedly connected with limiting plate that transparent inflation gasbag was kept away from to the slit edge of a knife, the limiting plate adopts rubber materials to make, through setting up the limiting plate, can make the gasbag package when expanding, through the restriction of limiting plate to the clearance between the slit edge of a knife sealed tighter, improves the separation nature to the dust.

Further, the adsorption line adopts the cotton material of silk to make, because of silk is the lightest gentle thinnest natural fibre in nature, can easily recover the original state after withdrawing external force, and the inner tube of a tyre does not cake, does not vex, does not contract and gathers together and evenly soft for it is cleaner to the clearance of dust after the adsorption line adsorbs alcohol, has improved the life of adsorption line simultaneously greatly.

Further, push away the handle outer end and cut a hole spherical groove, spherical inslot rotation is connected with the ball, the ball contacts with the recess, through setting up spherical groove and ball, can make and push away the handle at the gliding in-process of recess inner wall, is difficult for causing the card to pause, and what promote is convenient fast more.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme can realize that the device can ensure that the push handle pushes the sliding block to extrude the air in the sleeve by pressing the push handle in the use process, so that the air bag packet communicated with the push handle expands to move towards the right side to shield the gap between the slit knife edges and prevent dust and dirt from entering the adjustable slit from the gap, the protective cover is screwed on the adjustable slit to further prevent the invasion of the dust and the dirt, when the light-passing aperture of the adjustable slit is adjusted, the air bag packet is gradually restored to the original state by pulling back the push handle, and in the process of restoring to the original state, because the alcohol in the air bag is extruded from the penetration part of the diaphragm, the absorption line absorbs the permeated alcohol, the absorption line wipes the slit knife edge surface by the process that the air bag packet is restored to the original state to move, the dust on the slit knife edge surface is cleaned, and when the light inlet quantity of the light source is adjusted by the adjustable slit, and a part of light source is irradiated on the transparent expansion air bag, the transparent expansion air bag expands due to the heat irradiated by the light source, so that the light-blocking powder is gradually dispersed, meanwhile, the light source is further irradiated on the surface of the convex lens ball, and the convex lens ball refracts the light source irradiated on the surface of the convex lens ball into the light through hole after the adjustment of the adjustable slit, so that the light incident quantity of the light source of the adjustable slit is improved.

(2) The dust blocking device comprises a sleeve fixedly connected with the inner wall of the groove, a connecting rod is inserted at the outer end of the sleeve, a push handle is fixedly connected at the outer end of the connecting rod, a sliding block is fixedly connected at one end of the connecting rod, which is far away from the push handle, the sliding block is connected with the inner wall of the sleeve in a sliding manner, an air hole is drilled at the inner bottom end of the sleeve, a pair of rubber sealing sheets which are mutually abutted are rotatably connected between the inner walls of the air hole, an air bag package is fixedly connected at the outer end of the sleeve and is communicated with the rubber sealing sheets, a wiping device is arranged at one end, which is close to a slit knife edge, of the air bag package, and a light gathering device is arranged at the right end of the air bag package. Therefore, the air bag package communicated with the air bag package expands to move towards the right side, the gap between the knife edges of the slits is shielded, dust and dirt are prevented from entering the adjustable slits from the gap, and meanwhile, the protective cover is screwed on the adjustable slits, so that the dust and the dirt are further prevented from invading.

(3) The wiping device comprises a storage air bag fixedly connected with the outer end of an air bag packet, a circulation hole is cut at the outer end of the storage air bag, a diaphragm is fixedly connected between the inner walls of the circulation hole, alcohol is filled in the storage air bag, a plurality of evenly distributed adsorption lines are fixedly connected at the outer end of the alcohol and are contacted with the slit knife edge, in order to prevent the slit knife edge surface with more burrs on the collected spectrum curve from having dust, when the light-passing aperture of the adjustable slit is adjusted, the push handle is pulled back to gradually restore the air bag package to the original state, in the process of returning to the original state, the extrusion force on the storage air bag is caused by the expansion of the air bag packet, so that the alcohol in the storage air bag is extruded to permeate from the diaphragm, the permeated alcohol is absorbed by the adsorption line, and simultaneously, the surface of the slit knife edge is wiped in the process of returning the contact air bag package to the original state to move, and dust on the surface of the slit knife edge is cleaned.

(4) The light condensing device comprises a transparent expansion air bag fixedly connected with the right end of an air bag packet, light-blocking powder is filled in the inner cavity of the transparent expansion air bag, a fixing line is fixedly connected between the inner walls of the light-blocking powder, a plurality of uniformly distributed convex lens balls are fixedly connected with the outer end of the fixing line, when the light source incident quantity is adjusted by an adjustable slit, a part of light source is irradiated on the transparent expansion air bag, the transparent expansion air bag expands due to the heat irradiated by the light source at the moment, the light-blocking powder is gradually dispersed, meanwhile, the light source is further irradiated on the surface of the convex lens balls, the convex lens balls refract the light source irradiated on the surface of the convex lens balls into light through holes after the adjustment of the adjustable slit, and the light source incident quantity of the adjustable slit is further improved.

(5) Push away fixedly connected with extension spring between handle and the sleeve, extension spring is located the connecting rod outside, and extension spring adopts stainless steel material to make, through setting up extension spring, can make when the shrink gasbag package, with the help of the effect pulling that extension spring resets push away the handle can be more convenient, simultaneously because of adopting stainless steel material, can be so that extension spring's life strengthens greatly, is difficult for leading to corroding to rust because of the air.

(6) The equal fixedly connected with of a pair of rubber mounting outer end is sealed to fill up and is filled with the magnetic powder of inter attraction, through setting up sealed pad and magnetic powder, can make the inside air seal degree of sleeve higher, is difficult for causing and reveals, and gasbag package shrink is more thorough simultaneously.

(7) The limiting plate is fixedly connected to one end, far away from the transparent inflatable air bag, of the slit knife edge, is made of rubber materials, and by the limiting plate, when the air bag is inflated, gaps between the slit knife edges are sealed more tightly through limitation of the limiting plate, and blocking performance of dust is improved.

(8) The adsorption line is made of silk cotton materials, and can be easily restored to the original state after external force is cancelled because silk is the lightest, softest and thinnest natural fiber in the nature, the inner tube does not cake, is not stuffy, is not shrunk and is uniform and soft, so that the adsorption line can be cleaned of dust after adsorbing alcohol, and the service life of the adsorption line is greatly prolonged.

(9) Push away the handle outer end and cut and have spherical groove, spherical inslot rotation is connected with the ball, and the ball contacts with the recess, through setting up spherical groove and ball, can make and push away the handle at the gliding in-process of recess inner wall, is difficult for causing the card to pause, and what promote is convenient fast more.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic view of the slit structure of the present invention;

FIG. 3 is a schematic view of the structure within the sleeve of the present invention;

FIG. 4 is a schematic view of the construction of the air bag package of the present invention;

FIG. 5 is a schematic view of the storage bladder of the present invention;

fig. 6 is a top view of the prism table rotation adjustment mechanism of the present invention.

The reference numbers in the figures illustrate:

1 experimental work platform, 2 CCD light intensity distribution measuring instrument, 3 imaging focusing mechanism, 4 spectrum viewing window, 5 reflector rotation adjusting hand wheel, 6 support frame, 7 imaging pipeline, 8 prism table rotation adjusting mechanism, 9 prism cassette, 10 collimating pipeline, 11 adjustable slit, 12 lamp tube, 13 protective cover, 14 light hole, 15 locking screw, 16 push handle, 17 slide block, 18 air hole, 19 rubber sealing sheet, 20 air bag package, 21 transparent expansion air bag, 22 storage air bag, 23 flow hole, 24 diaphragm, 25 alcohol, 26 adsorption line, 27 light isolation powder, 28 fixing line, 29 convex mirror ball, 30 support rod, 31 slit knife edge, 32 groove, 33 sleeve and 34 connecting rod.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1 and 2, a spectrograph based on high-efficiency adjustment of incident light intensity comprises an experimental work platform 1, a CCD light intensity distribution measuring instrument 2 is installed at the upper end of the experimental work platform 1, an imaging focusing mechanism 3 is fixedly connected to the left end of the CCD light intensity distribution measuring instrument 2, a spectral window 4 is fixedly connected to the upper end of the imaging focusing mechanism 3, the spectral window 4 is communicated with the imaging focusing mechanism 3, a reflector rotation adjusting hand wheel 5 is rotatably connected to the outer end of the imaging focusing mechanism 3, a plurality of uniformly distributed support frames 6 are fixedly connected to the upper end of the experimental work platform 1, an imaging pipeline 7 is inserted between a pair of support frames 6, the imaging pipeline 7 is fixedly connected to the imaging focusing mechanism 3, a prism table rotation adjusting mechanism 8 is connected to the lower side of the imaging pipeline 7 through a thread, a prism cassette 9 is fixedly connected to the left end of the imaging pipeline 7, a quasi-straight pipeline 10 is fixedly connected to the end of the outer end of the prism cassette 9 far away from the imaging pipeline 7, an adjustable slit 11 is arranged at the outer end of an quasi-straight pipeline 10, a support rod 30 is fixedly connected at the outer end of an experimental working platform 1, a lamp tube 12 is connected at the outer end of the support rod 30 in a sliding manner, a protective cover 13 is fixedly connected at the lower end of the lamp tube 12, a light hole 14 is drilled at the outer end of the protective cover 13, a locking screw 15 is inserted at the outer end of the support rod 30, the locking screw 15 is in threaded connection with the lamp tube 12, a slit knife edge 31 is connected between the inner walls of the adjustable slit 11 in a sliding manner, a groove 32 is drilled at the outer end of the slit knife edge 31, a dust blocking device is arranged in the groove 32, the device is required to be arranged in a darkroom, a rotary indicating pointer is moved to the scale indicating central position of an experimental instrument panel by rotating a rotary adjusting mechanism 8 of a prism table, an upper cover of a prism cassette 9 is opened, the prism is placed on a rotary table, a light source is placed at the front part of the adjustable slit 11, the light source is lightened, and is aligned with the light passing caliber of the quasi-straight pipeline 10, rotating a reflector rotation adjusting hand wheel 5 clockwise to the bottom, finely adjusting a prism to enable a light spot seen through a spectrum viewing window 4 to be strongest, pressing the prism, keeping the light spot at the center position of the spectrum viewing window 4, taking out a protective cover at the outer end of an adjustable slit 11, adjusting the light transmission caliber of the protective cover to be about 0.5mm, installing the protective cover on a quasi-straight pipeline 10, installing the adjustable slit 11 at a vertical position, then rotating the adjustable slit 11 until a spectral line on a negative is in the vertical direction, then adjusting the light transmission caliber of the adjustable slit 11 to be slowly reduced, and simultaneously observing spectral line change on the spectrum viewing window 4 by using a spectrum viewing mirror until the brightness and the width of the observed spectral line are moderate and the spectral line is clear.

Referring to fig. 2-5, the dust-blocking device includes a sleeve 33 fixedly connected with the inner wall of the groove 32, a connecting rod 34 is inserted in the outer end of the sleeve 33, a push handle 16 is fixedly connected with the outer end of the connecting rod 34, a sliding block 17 is fixedly connected with one end of the connecting rod 34 far away from the push handle 16, the sliding block 17 is slidably connected with the inner wall of the sleeve 33, an air vent 18 is chiseled at the inner bottom end of the sleeve 33, a pair of rubber sealing sheets 19 which are mutually abutted are rotatably connected between the inner walls of the air vent 18, an air bag package 20 is fixedly connected with the outer end of the sleeve 33, the air bag package 20 is communicated with the rubber sealing sheets 19, a wiping device is arranged at one end of the air bag package 20 close to the slit knife edge 31, a light-gathering device is arranged at the right end of the air bag package 20, when the device is not in operation, because the slit knife edge 31 is sharp, the slit knife edge is easily curled edges to cause damage and destroy, a certain gap exists at ordinary times, by pressing the push handle 16, the push handle 16 pushes the sliding block 17 to extrude the air in the sleeve 33, so that the air in the sleeve 33 pushes the pair of rubber sealing sheets 19 which are tightly abutted to each other due to the pressure, the air bag package 20 communicated with the sleeve is expanded to move towards the right side, the gap between the slit knife edges 31 is shielded, dust and dirt are prevented from entering the adjustable slit 11 from the gap, and meanwhile, the protective cover is screwed on the adjustable slit 11, so that the dust and the dirt are further prevented from invading.

Referring to fig. 4 and 5, the wiping device includes a storage airbag 22 fixedly connected to an outer end of an airbag package 20, a flow hole 23 is cut at an outer end of the storage airbag 22, a diaphragm 24 is fixedly connected between inner walls of the flow hole 23, the storage airbag 22 is filled with alcohol 25, a plurality of evenly distributed adsorption lines 26 are fixedly connected to an outer end of the alcohol 25, the adsorption lines 26 are in contact with slit edges 31, in order to prevent dust on the surface of the slit edges 31 with more burrs on a collected spectral curve, when adjusting a light aperture of an adjustable slit 11, the airbag package 20 is gradually restored to an original state due to pulling back a push handle 16, and in a process of restoring to the original state, due to extrusion force applied to the storage airbag 22 caused by expansion of the airbag package 20, the alcohol 25 in the storage airbag 22 is extruded from a penetration position of the diaphragm 24, the adsorption lines 26 absorb the penetrated alcohol 25, and the slit edges 31 are wiped by a process of moving the airbag package 20 in the original state, the dust on the surface of the slit knife edge 31 is cleaned.

Referring to fig. 4, the light condensing device includes a transparent inflatable airbag 21 fixedly connected to the right end of the airbag package 20, light-blocking powder 27 is filled in the inner cavity of the transparent inflatable airbag 21, fixing lines 28 are fixedly connected between the inner walls of the light-blocking powder 27, the outer ends of the fixing lines 28 are fixedly connected to a plurality of uniformly distributed lenticular balls 29, when the light incident amount of the light source is adjusted by the adjustable slit 11, a part of the light source is irradiated onto the transparent inflatable airbag 21, and at this time, the transparent inflatable airbag 21 is inflated by the heat irradiated by the light source, so that the light-blocking powder 27 is gradually dispersed, and the light source further irradiates the surface of the lenticular balls 29, and the light source irradiated on the surface of the lenticular balls 29 is refracted into the light through hole adjusted by the adjustable slit 11, so that the light incident amount of the light source of the adjustable slit 11 is further increased.

Referring to fig. 3, an extension spring is fixedly connected between the push handle 16 and the sleeve 33, the extension spring is located outside the connecting rod 34, the extension spring is made of stainless steel, and by arranging the extension spring, when the air bag package 20 is contracted, the push handle 16 can be pulled more conveniently by means of the reset effect of the extension spring, and meanwhile, due to the adoption of the stainless steel, the service life of the extension spring is greatly prolonged, and the extension spring is not prone to corrosion and rust due to air.

Referring to fig. 3, the outer ends of the pair of rubber sealing pieces 19 are fixedly connected with sealing gaskets filled with mutually attracted magnetic powder, and by arranging the sealing gaskets and the magnetic powder, the air tightness inside the sleeve 33 is higher, leakage is not easy to occur, and meanwhile, the air bag 20 is more thoroughly contracted.

Referring to fig. 2, a limiting plate is fixedly connected to one end of the slit knife edge 31 away from the transparent inflatable air bag 21, the limiting plate is made of rubber material, and when the air bag 20 is inflated, the gap between the slit knife edges 31 is more tightly sealed by the limitation of the limiting plate, so that the blocking performance of dust is improved.

Referring to fig. 5, the adsorption thread 26 is made of silk cotton material, because silk is the lightest, softest and finest natural fiber in nature, the silk can be easily recovered after external force is removed, the inner tube does not cake, is not stuffy, is not shrunk and is uniform and soft, so that the adsorption thread 26 can clean dust more cleanly after adsorbing alcohol 25, and the service life of the adsorption thread 26 is greatly prolonged.

Referring to fig. 2, a spherical groove is formed at the outer end of the push handle 16, a ball is rotatably connected in the spherical groove, the ball contacts the groove 32, and the spherical groove and the ball are arranged, so that the push handle 16 is not easily jammed in the sliding process of the inner wall of the groove 32, and the push is faster and more convenient.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.