阅读说明：本技术 超高精度多用途同步激光测量仪及其工作方法 (Ultrahigh-precision multipurpose synchronous laser measuring instrument and working method thereof ) 是由 刘放 于 2020-08-24 设计创作，主要内容包括：超高精度多用途同步激光测量仪,其特征包括：微处理器(1),所述微处理器(1)通过导线与逻辑算法处理系统(2)相连,所述逻辑算法处理系统(2)通过导线与存储器(15)相连,所述微处理器(1)通过导线与显示系统(13)相连,所述显示系统(13)通过导线与液晶显示屏(14)相连,所述微处理器(1)通过导线与高频信号发生器(3)相连,所述高频信号发生器(3)上端通过导线与高频信号调制器(4)相连,所述高频信号调制器(4)通过导线与发射驱动器(5)相连,所述发射驱动器(5)通过导线与激光发射器(6)相连,所述激光发射器(6)通过导线与光学准直系统(7)相连。(The multi-purpose synchronous laser measuring instrument of ultrahigh precision, its characteristic includes: microprocessor (1), microprocessor (1) links to each other with logic algorithm processing system (2) through the wire, logic algorithm processing system (2) link to each other with memory (15) through the wire, microprocessor (1) links to each other with display system (13) through the wire, display system (13) link to each other with liquid crystal display (14) through the wire, microprocessor (1) links to each other with high frequency signal generator (3) through the wire, high frequency signal generator (3) upper end links to each other with high frequency signal modulator (4) through the wire, high frequency signal modulator (4) link to each other with emission driver (5) through the wire, emission driver (5) link to each other with laser emitter (6) through the wire, laser emitter (6) link to each other with optical collimation system (7) through the wire.)

1. The multi-purpose synchronous laser measuring instrument of ultrahigh precision, its characteristic includes: microprocessor (1), microprocessor (1) links to each other with logic algorithm processing system (2) through the wire, logic algorithm processing system (2) link to each other with memory (15) through the wire, microprocessor (1) links to each other with display system (13) through internal logic, display system (13) link to each other with liquid crystal display (14) through the wire, microprocessor (1) links to each other with high frequency signal generator (3) through the wire, high frequency signal generator (3) upper end links to each other with high frequency signal modulator (4) through the wire, high frequency signal modulator (4) link to each other with emission driver (5) through the wire, emission driver (5) link to each other with laser emitter (6) through the wire, laser emitter (6) link to each other with optical alignment system (7) through optical structure, high frequency signal generator (3) lower extreme links to each other with high frequency signal mixing processor (8) through the wire The right end of the high-frequency signal mixing processor (8) is connected with the microprocessor (1) through a lead, the left end of the high-frequency signal mixing processor (8) is connected with the high-frequency signal amplifier (9) through a lead, the left end of the high-frequency signal amplifier (9) is connected with the avalanche photodetector (10) through a lead, the avalanche photodetector (10) is connected with the optical receiving and focusing instrument (11) through an optical structure, the temperature measuring sensor (12) is connected with the microprocessor (1) through a lead, the microprocessor (1) is connected with the power supply (19) through a lead, the power supply (19) is connected with the battery management system (16), the battery management system (16) is connected with the detector bias high-voltage boosting module (17) through a lead, and the detector bias high-voltage boosting module (17) is connected with the emitter constant-current module (18) through a lead, optical alignment system (7) left side is equipped with first refractor (20), optics receiving focusing appearance (11) left side is equipped with second refractor (21), second refractor (21) are located first refractor (20) under, second refractor (21) below is equipped with focusing convex lens (22), focusing convex lens (22) below is equipped with laser focusing body (23), pass through detecting beam (24) and reflected signal between focusing convex lens (22) and laser focusing body (23), first refractor (20) top is equipped with camera (26), camera (26) receive the light signal of main optical axis (25) transmission.

2. The working method of the ultra-high precision multipurpose synchronous laser measuring instrument as claimed in claim 1, wherein: the microprocessor (1) sends a measuring starting signal to the high-frequency signal generator (3), the high-frequency signal generator (3) generates a high-frequency signal to the high-frequency signal modulator (4), the high-frequency signal modulator (4) sends the high-frequency signal modulated by the emission driver (5), and the emission driver (5) drives the laser emitter 6 to emit laser and is adjusted by the optical alignment system (7).

3. The working method of the ultra-high precision multipurpose synchronous laser measuring instrument as claimed in claim 1, wherein: the laser beam after the adjustment of the optical collimation system (7) enters the first refractor (20), the first refractor (20) refracts the laser beam and then enters the second refractor (21), and the detection beam (24) passing through the second refractor (21) directly irradiates to the laser focusing body (23).

4. The working method of the ultra-high precision multipurpose synchronous laser measuring instrument as claimed in claim 1, wherein: the laser signal reflected by the laser focusing body (23) is refracted to the optical receiving focusing instrument (11) through the second refractor (21), the signal of the optical receiving focusing instrument is transmitted to the avalanche photodetector (10), the laser signal is amplified through the high-frequency signal amplifier (9) after passing through the avalanche photodetector (10), then is processed through the high-frequency signal mixing processor (8) with the transmitting signal generated by the high-frequency signal generator (3), and is finally input to the microprocessor (1), and meanwhile, the temperature signal of the microprocessor is transmitted to the microprocessor (1) through the temperature measuring sensor (12).

5. The working method of the ultra-high precision multipurpose synchronous laser measuring instrument as claimed in claim 1, wherein: the microprocessor (1) outputs signals to the main processing chip and the programmable logic chip to be processed together, the measurement results are finally displayed on the liquid crystal display screen (14) through the display system (13), and the measured data are automatically stored in the memory (15) after being processed by the logic algorithm processing system (2).

Technical Field

The invention belongs to the technical field of near-field ultrahigh-precision measuring devices, and particularly relates to an ultrahigh-precision multipurpose synchronous laser measuring instrument and a working method thereof.

Background

The ultra-high precision laser measuring instrument is an instrument for accurately measuring a short-distance or near-field target (1-100mm) by using laser, and is also called laser ranging.

The measuring instrument emits a beam of finely focused high-frequency modulated laser to a measured target when in work, then a photoelectric element receives a laser signal reflected by the target, the laser signal is input to a microprocessor, the depth distance and the change of the target are calculated through frequency mixing processing of the emitted and received signals, and based on ultrahigh frequency laser modulation (100GHz), signal frequency mixing demodulation processing and a logic algorithm, the system calculates the precise length, height or depth of the target through measurement and obtains ultrahigh measuring precision (<10 micrometers).

At present, all devices used in the process are mechanical devices, and the device is low in precision, inaccurate in measurement, large in size, heavy in weight, inconvenient to carry, high in power consumption, low in integration level, not suitable for precision devices and laser processing devices, and even not suitable for synchronous measurement in the field of small precision device processing.

In order to overcome the technical problems, the applicant considers that the ultrahigh-precision multipurpose synchronous laser measuring instrument and the working method thereof disclosed herein have necessary practical significance from the practical point of view after long-term research.

Disclosure of Invention

The invention aims to provide an ultrahigh-precision multipurpose synchronous laser measuring instrument and a working method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the multipurpose synchronous laser measuring instrument with ultrahigh precision and its working method are characterized by that: the device comprises a microprocessor (1), the microprocessor (1) is connected with a logic algorithm processing system (2) through a lead, the logic algorithm processing system (2) is connected with a memory (15) through a lead, the microprocessor (1) is connected with a display system (13) through a lead, the display system (13) is connected with a liquid crystal display (14) through a lead, the microprocessor (1) is connected with a high-frequency signal generator (3) through a lead, the upper end of the high-frequency signal generator (3) is connected with a high-frequency signal modulator (4) through a lead, the high-frequency signal modulator (4) is connected with an emission driver (5) through a lead, the emission driver (5) is connected with a laser emitter (6) through a lead, the laser emitter (6) is connected with an optical collimation system (7) through a lead, the lower end of the high-frequency signal generator (3) is connected with a high-frequency signal mixing processor (8) through a lead, the right end of the high-frequency signal mixing processor (8) is connected with the microprocessor (1) through a lead, the left end of the high-frequency signal mixing processor (8) is connected with a high-frequency signal amplifier (9) through a lead, the left end of the high-frequency signal amplifier (9) is connected with the avalanche photodetector (10) through a lead, the avalanche photodetector (10) is respectively connected with an optical receiving focalizer (11) and a temperature measuring sensor (12) through leads, the temperature measuring sensor (12) is connected with the microprocessor (1) through a lead, the microprocessor (1) is connected with a power supply (19) through a lead, the power supply (19) is connected with a battery management system (16), the battery management system (16) is connected with the detector bias high-voltage boosting module (17) through a lead, the detector bias high-voltage boosting module (17) is connected with the mind generator constant-current module (18) through a lead.

Preferably, optical alignment system (7) left side is equipped with first refractor (20), optics receiving focusing appearance (11) left side is equipped with second refractor (21), second refractor (21) are located first refractor (20) under, second refractor (21) below is equipped with focusing convex lens (22), focusing convex lens (22) below is equipped with laser focusing body (23), link to each other through detecting beam (24) between focusing convex lens (22) and the laser focusing body (23), first refractor (20) top is equipped with camera (26), camera (26) link to each other through primary optic axis (25) with first refractor (20).

Preferably, the microprocessor (1) sends a measurement starting signal to the high-frequency signal generator (3), the high-frequency signal generator (3) sends an instruction to the high-frequency signal modulator (4), the high-frequency signal modulator (4) sends a driving instruction to the emission driver (5), and the emission driver (5) drives the laser emitter 6 to emit laser and is adjusted by the optical alignment system (7).

Preferably, the laser beam after the adjustment of the optical collimating system (7) enters the first refractor (20), the first refractor (20) refracts the laser beam and then enters the second refractor (21), the detection beam (24) passing through the second refractor (21) directly irradiates to the laser focusing body (23), and the other part of laser beam enters the optical receiving focusing instrument (11) after being reflected by the second refractor (21).

Preferably, the laser signal generated by the optical receiving focusing instrument (11) is transmitted to the avalanche photodetector (10), the laser signal is amplified by the high-frequency signal amplifier (9) after passing through the avalanche photodetector (10), then processed by the high-frequency signal mixing processor (8), and finally input to the microprocessor (1), and meanwhile, the temperature signal is transmitted to the microprocessor (1) through the temperature measuring sensor (12).

Preferably, the microprocessor (1) outputs signals to the main processing chip and the programmable logic chip thereof for processing together, the measurement results are finally displayed on the liquid crystal display screen (14) through the display system (13), and the measured data are automatically stored in the memory (15) after being processed by the logic algorithm processing system (2).

Compared with the prior art, the invention provides an ultrahigh-precision multipurpose synchronous laser measuring instrument and a working method thereof, and the ultrahigh-precision multipurpose synchronous laser measuring instrument has the following beneficial effects:

the novel ultrahigh-precision near-field multipurpose laser measuring instrument is a top-level part in a laser ranging technology system, has the characteristics of ultrahigh measuring precision, small volume, light weight, low power consumption, high integration level and the like, can be widely combined with various precision machines and laser processing equipment, is applied to synchronous measurement in the field of small precision device processing, ensures the process precision and quality, and fills the blank that other measuring technologies are difficult to reach.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

fig. 1 is a schematic diagram of the structure and the working principle of the ultra-high precision multipurpose synchronous laser measuring instrument and the working method thereof.

In the figure: microprocessor (1), logic algorithm processing system (2), high frequency signal generator (3), high frequency signal modulator (4), transmission driver (5), laser emitter (6), optical alignment system (7), high frequency signal mixing processor (8), high frequency signal amplifier (9), avalanche photodetector (10), optical receiving focus (11), temperature sensor (12), display system (13), liquid crystal display (14), memory (15), battery management system (16), detector bias high voltage boost module (17), ware constant current module (18), power (19), first refractor (20), second refractor (21), focusing convex mirror (22), laser focusing body (23), detection beam (24), primary optical axis (25), camera (26).

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; 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.

Referring to fig. 1, the present invention provides a technical solution:

the multipurpose synchronous laser measuring instrument with ultrahigh precision and its working method are characterized by that: the device comprises a microprocessor 1, wherein the microprocessor 1 is connected with a logic algorithm processing system 2 through a lead, the logic algorithm processing system 2 is connected with a memory 15 through a lead, the microprocessor 1 is connected with a display system 13 through a lead, the display system 13 is connected with a liquid crystal display 14 through a lead, the microprocessor 1 is connected with a high-frequency signal generator 3 through a lead, the upper end of the high-frequency signal generator 3 is connected with a high-frequency signal modulator 4 through a lead, the high-frequency signal modulator 4 is connected with an emission driver 5 through a lead, the emission driver 5 is connected with a laser emitter 6 through a lead, the laser emitter 6 is connected with an optical collimation system 7 through a lead, the lower end of the high-frequency signal generator 3 is connected with a high-frequency signal mixing processor 8 through a lead, and the right end of the high-frequency signal mixing processor 8 is connected with the microprocessor 1 through, the left end of the high-frequency signal mixing processor 8 is connected with a high-frequency signal amplifier 9 through a lead, the left end of the high-frequency signal amplifier 9 is connected with an avalanche photodetector 10 through a lead, the avalanche photodetector 10 is respectively connected with an optical receiving focusing instrument 11 and a temperature measuring sensor 12 through leads, the temperature measuring sensor 12 is connected with a microprocessor 1 through a lead, the microprocessor 1 is connected with a power supply 19 through a lead, the power supply 19 is connected with a battery management system 16, the battery management system 16 is connected with a detector bias high-voltage boosting module 17 through a lead, and the detector bias high-voltage boosting module 17 is connected with a generator constant-current module 18 through a lead.

In a preferred embodiment of the present invention, a first refractive mirror 20 is disposed on the left side of the optical collimating system 7, a second refractive mirror 21 is disposed on the left side of the optical receiving and focusing instrument 11, the second refractive mirror 21 is located right below the first refractive mirror 20, a focusing convex mirror 22 is disposed below the second refractive mirror 21, a laser focusing body 23 is disposed below the focusing convex mirror 22, the focusing convex mirror 22 and the laser focusing body 23 are connected through a detection beam 24, a camera 26 is disposed above the first refractive mirror 20, and the camera 26 is connected with the first refractive mirror 20 through a main optical axis 25.

In the preferred embodiment of the present invention, the microprocessor 1 sends a measurement start signal to the high frequency signal generator 3, the high frequency signal generator 3 sends an instruction to the high frequency signal modulator 4, the high frequency signal modulator 4 sends a driving instruction to the emission driver 5, and the emission driver 5 drives the laser emitter 6 to emit laser and performs adjustment through the optical alignment system 7.

In a preferred embodiment of the present invention, the laser beam adjusted by the optical collimating system 7 enters the first refractive mirror 20, the laser beam refracted by the first refractive mirror 20 enters the second refractive mirror 21 again, the probe beam 24 passing through the second refractive mirror 21 directly enters the laser focusing body 23, and another part of the laser beam is reflected by the second refractive mirror 21 and enters the optical receiving and focusing instrument 11.

In the preferred embodiment of the present invention, the laser signal generated by the optical receiving and focusing instrument 11 is transmitted to the avalanche photodetector 10, and the laser signal is amplified by the avalanche photodetector 10 and then by the high frequency signal amplifier 9, and then processed by the high frequency signal mixing processor 8, and finally input to the microprocessor 1, and meanwhile, the temperature signal is transmitted to the microprocessor 1 by the temperature measuring sensor 12.

In the preferred embodiment of the present invention, the microprocessor 1 outputs the signal to the main processing chip and the programmable logic chip for processing, and then the signal is displayed on the liquid crystal display 14 via the display system 13, and the measured data is automatically stored in the memory 15 after being processed by the logic algorithm processing system 2.

The working principle and the using process of the invention are as follows:

laser beam emission process: when the measurement is started, the microprocessor 1 sends a measurement starting signal to the high-frequency signal generator 3, the high-frequency signal generator 3 sends an instruction to the high-frequency signal modulator 4, the high-frequency signal modulator 4 sends a driving instruction to the emission driver 5, and the emission driver 5 drives the laser emitter 6 to emit laser and adjusts the laser through the optical alignment system 7.

The laser beam transmission process: the laser beam adjusted by the optical collimating system 7 enters the first refractor 20, passes through the first refractor 20, enters the second refractor 21 again, the probe beam 24 passing through the second refractor 21 directly enters the laser focusing body 23, and the other part of the laser beam enters the optical receiving and focusing instrument 11 after being reflected by the second refractor 21.

Laser beam measuring process: the laser signal entering the optical receiving focalizer 11 is transmitted to the avalanche photodetector 10, the laser signal is amplified by the high frequency signal amplifier 9 after passing through the avalanche photodetector 10, then processed by the high frequency signal mixing processor 8, and finally input to the microprocessor 1, and the temperature signal is transmitted to the microprocessor 1 through the temperature measuring sensor 12.

The measurement processing process comprises the following steps: the signals transmitted into the microprocessor 1 are processed by the main processing chip and the programmable logic chip in the microprocessor 1, then the measurement results are displayed on the liquid crystal display 14 by the display system 13, and the measured data are automatically stored in the memory 15 after being processed by the logic algorithm processing system 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.