A kind of load mould for the measurement of transabdominal ultrasonography surface temperature of probe

文档序号:1770013 发布日期:2019-12-03 浏览:17次 中文

阅读说明:本技术 一种用于体表超声探头表面温度测量的负载体模 (A kind of load mould for the measurement of transabdominal ultrasonography surface temperature of probe ) 是由 牛凤岐 朱承纲 程洋 张迪 于 2018-05-24 设计创作,主要内容包括:本发明涉及一种用于体表超声探头表面温度测量的负载体模(1),其包括:体模外壳、声-热仿组织材料(13)和支护板(9);体模外壳内部灌充声-热仿组织材料(13);该体模外壳包括:底板(16)、前框架板(2)、后框架板(4)、两个金属面板(3)、侧连接面板(12)、侧面板(11)、顶部连接面板(10)、平面声窗(5)、第一凹面声窗(6)、第二凹面声窗(7)和第三凹面声窗(8);靠近底板(16)的两端处对称地开有两个固定螺孔,分别通过第一螺栓(19)和第二螺栓(20)穿过对应的固定螺孔,并固定在支护板(9)上;靠近底板(16)的中心处对称地开有两个圆孔,并通过第一封口橡皮(17)和第二封口橡皮(18)封堵所述两个圆孔。(The present invention relates to a kind of load moulds (1) for the measurement of transabdominal ultrasonography surface temperature of probe comprising: body mould shell, sound-heat imitate organization material (13) and retaining-plate (9);Body mould interior of shell filling sound-heat imitates organization material (13);The body mould shell includes: bottom plate (16), front frame board (2), rear frame panel (4), two metal deckings (3), side connection panel (12), side panel (11), top connection panel (10), plane sound window (5), the first concave surface sound window (6), the second concave surface sound window (7) and third concave surface sound window (8);Fixing threaded hole there are two symmetrically opening at the both ends of bottom plate (16) passes through corresponding fixing threaded hole by the first bolt (19) and the second bolt (20) respectively, and is fixed on retaining-plate (9);Circular hole there are two symmetrically being opened at the center of bottom plate (16), and described two circular holes are blocked by the first sealing rubber (17) and the second sealing rubber (18).)

1. a kind of load mould (1) for the measurement of transabdominal ultrasonography surface temperature of probe, characterized in that it comprises: outside body mould Shell, sound-heat imitate organization material (13) and retaining-plate (9);The body mould shell is fixed on retaining-plate (9), body mould interior of shell Filling sound-heat imitates organization material (13);Wherein, the body mould shell is Irregular hexahedron structure;The body mould shell is into one Step includes: bottom plate (16), front frame board (2), rear frame panel (4), two metal deckings (3), side connection panel (12), side panel (11), top connection panel (10), plane sound window (5), the first concave surface sound window (6), the second concave surface sound window (7) and third concave surface sound Window (8);Fixing threaded hole there are two symmetrically opening at the both ends of bottom plate (16) passes through the first bolt (19) and the second spiral shell respectively Bolt (20) passes through corresponding fixing threaded hole, and is fixed on retaining-plate (9);Two are symmetrically provided at the center of bottom plate (16) A circular hole, and described two circular holes are blocked by the first sealing rubber (17) and the second sealing rubber (18);The top of body mould shell Portion is equipped with the second concave surface sound window (7) and third concave surface sound window (8), and is connected with top therebetween and connects panel (10);Body mould Pass through side connection panel (12) staggered relatively and side panel (11), front baffle staggered relatively between the top and bottom of shell Plate (2) and rear frame panel (4) connection, side connect panel (12) and are equipped with plane sound window (5) and the first concave surface sound window (6);Front frame Heat-conducting metal panel (3) are inlayed in the middle part of the middle part of frame plate (2) and rear frame panel (4).

2. load mould (1) according to claim 1, which is characterized in that the body mould shell uses poly (methyl methacrylate) plate phase Mutually bonding is made;Wherein, bottom surface sound absorption liner (15) is pasted on the middle part inner wall of bottom plate (16);On the inner wall of side panel (11) It is pasted with side sound absorption liner (14).

3. load mould (1) according to claim 1, which is characterized in that symmetrically opened at the both ends of retaining-plate (9) There is fixing threaded hole, and the fixing threaded hole position on the position of the fixing threaded hole on retaining-plate (9) and bottom plate (16) corresponds.

4. load mould (1) according to claim 1, which is characterized in that it is aqueous that the sound-heat, which imitates organization material (13), High-molecular gel based composites;The aqueous high molecular gel based composites pass through Precerving liquid maintenance, the maintenance Liquid is through the first closing rubber (17) and the second closing rubber (18) injection on bottom plate (16).

5. load mould (1) according to claim 4, which is characterized in that sound-heat imitates unidirectional sound path in organization material and exists 18cm or more.

6. load mould (1) according to claim 1, which is characterized in that side connection panel (12) face is equipped with the One opening and the second opening;Second opening is located on the first opening;First opening is bonded with plane sound window (5);Second opens The first concave surface sound window (6) is bonded at mouthful.

7. load mould (1) according to claim 1, which is characterized in that top connection panel (10) is equipped with the Three openings and the 4th opening, and pass through top connection panel (10) connection between third opening and the 4th opening;Third opening It is bonded with the second concave surface sound window (7);4th opening is bonded with third concave surface sound window (8).

8. load mould (1) according to claim 1, which is characterized in that the metal decking (3) uses stainless steel material It is made, imitates quick heat between organization material (13) and body mould external environment for realizing sound-heat and exchange.

9. load mould (1) according to claim 1, which is characterized in that the plane sound window (5), the first concave surface sound window (6), the second concave surface sound window (7) and third concave surface sound window (8) are made of heat vulcanized silicone rubber.

10. load mould (1) according to claim 1, which is characterized in that first closing rubber (17) and the second envelope Close two circular holes of the rubber (18) by gluing closure at the center of bottom plate (16), wherein the first closing rubber (17) it is all made of vacuum rubber with the second closing rubber (18) and is made.

11. load mould (1) according to claim 1, which is characterized in that the load mould (1) visits transabdominal ultrasonography The thermometric mode of head includes: that non-aqueous bath temperature rises test and water-bath temperature rise test.

Technical field

The invention belongs to medical instrument quality examination technical fields, and in particular to one kind is used for transabdominal ultrasonography detecting head surface temperature Spend the load mould of measurement.

Background technique

Medical ultrasound diagnostic-custodial care facility be via ultrasonic probe to human body appointed part transmitting certain frequency, intensity and The ultrasonic wave of form receives, processing reflection-scatter echo signal, and then being shown in the form of image, figure, number, sound etc. should The physiology and pathological information at position to judge to the presence or absence of disease, damage, property, degree, or join human body physical sign The complication system that number is monitored.However, sent out ultrasonic wave is while as information carrier and the carrier of power and energy, By with radiant force, acoustic streaming and tissue resorption sound can after the thermal energy that is converted to act on tissue, can also cause cavitation in some cases, Cavitation causes high temperature again, high pressure acts on tissue.When acoustic pressure, sound intensity height to a certain extent when, one such or several effects It will cause disorganization or denaturation, i.e. developmental biology effect.For this purpose, relevant unit it is consistent with brainstrust seek it is appropriate The output amplitude of physical parameter characterization and control diagnosis ultrasound.But discovery later, causes tissue via ultrasonic probe Injury, the heat generated there are also inverting element itself and caused temperature rise.For this purpose, International Electrotechnical Commission (IEC) and China Medical ultrasound diagnostic-custodial care facility underlying security and including critical performance application specific standard covered.It is advised according to standard Fixed, the measurement of ultrasonic probe surface temperature, which is divided into, imitates use state and imitation two kinds of situations of light condition.Wherein, it imitates and uses The measurement of state is to be carried out using load mould as in the case where load using film or Filamentous thermocouple;Imitate unloaded shape The measurement of state is to be carried out in the case where no any coupling medium and load medium using film or Filamentous thermocouple.

For this demand, United Kingdom National physics laboratory has developed one and is known as " surface temperature detection body mould The device of (surface temperature test phantom) " ties up in plexiglass cylinder and a layer thickness is perfused about Agar gel type sound-heat of 11cm imitates organization material, firstly, the title of the device be it is inaccurate, as body mould, it is only As the tissue substitute of ultrasonic probe load, rather than a kind of measurement means.In use, temporarily covering a piece of room temperature sulphur SiClx building rubber compound adult mold device, top surface are in plane.But plane sound window is only applicable to plane antenna probe, is not suitable for facing Most of convex array probe is accounted for used in bed;In addition, its interior sound path is too short, the effective attenuation of ultrasonic wave, and its side not can guarantee Wall heat transfer is bad, will lead to the deviation of surface temperature of probe measured value;Its Open architecture will lead to liquid evaporation loss, thus The change of imitative organization material sound-thermal characteristics is caused, therefore is simply possible to use in short-term research experiment, cannot function as the long-term (number of fixed equipment Year) use.Furthermore Open architecture, which also results in, to be used in a water bath.

Summary of the invention

It is an object of the present invention to solve existing load mould, there are drawbacks described above, the present invention provides one kind to be used for The load mould of transabdominal ultrasonography surface temperature of probe measurement is imitating ultrasonic probe use state as the load of ultrasonic probe The lower measurement for carrying out ultrasonic probe surface temperature, has plane and a variety of curvature concave surfaces sound window, it can be ensured that existing various body surfaces are super The conformal coupling of sonic probe radiating surface, reason does not couple the bad measurement result for influencing surface temperature of probe.

To achieve the goals above, the present invention provides a kind of loads for the measurement of transabdominal ultrasonography surface temperature of probe Mould, the structure of the load mould include: body mould shell, the imitative organization material of sound-heat and retaining-plate;The body mould shell is fixed on On retaining-plate, body mould interior of shell filling sound-heat imitates organization material;Wherein, the body mould shell is Irregular hexahedron structure; The body mould shell further comprises: bottom plate, front frame board, rear frame panel, two metal deckings, side connection panel, side panel, Top connects panel, plane sound window, the first concave surface sound window, the second concave surface sound window and third concave surface sound window;Close to the both ends of bottom plate Place is symmetrically opened there are two fixing threaded hole, passes through corresponding fixing threaded hole by the first bolt and the second bolt respectively, and fixed On retaining-plate;Circular hole there are two symmetrically being opened at bottom plate center, and pass through the first closing rubber and the second closing rubber Block described two circular holes;The top of body mould shell is equipped with the second concave surface sound window and third concave surface sound window, and connection therebetween There is top to connect panel;Panel and side panel, opposite are connected by side staggered relatively between the top and bottom of body mould shell The front frame board of placement is connected with rear frame panel, and side connects panel and is equipped with plane sound window and the first concave surface sound window;Front frame board Middle part and rear frame panel in the middle part of inlay heat-conducting metal panel.

In the above-mentioned technical solutions, the body mould shell is mutually bonded using poly (methyl methacrylate) plate and is made.Wherein, in the middle part of bottom plate Inner wall on be pasted with bottom surface sound absorption liner;Sound absorption liner in side is pasted on the inner wall of side panel, for absorbing incident surpass Sound wave, sound-heat caused by eliminating because of its reflection are imitated organization material temperature and are increased.

In the above-mentioned technical solutions, it is symmetrically provided with fixing threaded hole at the both ends of retaining-plate, and consolidating on retaining-plate The fixing threaded hole position determined on screwhole position and bottom plate corresponds.

In the above-mentioned technical solutions, it is aqueous high molecular gel based composites that the sound-heat, which imitates organization material, is used for mould The acoustics and thermal characteristic of apery body tissue have acoustic characteristic and thermal characteristic as defined in standard.Wherein, organization material sound is imitated Learning characterisitic parameter includes: the velocity of sound (1540 ± 10) m/s, acoustic attenuation coefficient slope (0.5 ± 0.1) dB/ (cmMHz);Calorifics is special Property parameter includes: specific heat (3500 ± 500) J/ (kgK), thermal conductivity (0.5 ± 0.1) W/ (mK).Sound-the heat imitates tissue material Material has maintainability, can be by Precerving liquid maintenance, and the Precerving liquid is through the first closing rubber and second on bottom plate Close rubber injection, it can be ensured that its acoustics, thermal characteristic are stablized constant.

In the above-mentioned technical solutions, sound-heat imitates in organization material unidirectional sound path in 18cm or more, it can be ensured that round-trip ultrasound The effective attenuation of wave will not interfere the temperature field near temperature thermocouple.

In the above-mentioned technical solutions, the side connection panel is equipped with the first opening and the second opening;Second opening is located at On first opening;First opening bonds plane sound window, is used for couple planar linear array probe and radius of curvature is 76mm's Convex array probe;Second opening bond the first concave surface sound window, exposed surface radius of curvature selection value be 10mm, 15mm and 20mm, preferred value 20mm are used for the convex array probe that coupling radius of curvature is 20mm, 15mm, 10mm.

In the above-mentioned technical solutions, the top connection panel is equipped with third opening and the 4th opening, and third is open Panel connection is connect by top between the 4th opening;Third opening bonds the second concave surface sound window, the song of exposed surface Rate radius selection value is 30mm and 40mm, preferably 40mm, is used for the convex array probe that coupling radius of curvature is 40mm and 30mm; 4th opening bonds third concave surface sound window, and the radius of curvature selection value of exposed surface is 50mm and 60mm, and preferred value is 60mm is used for the convex array probe that coupling radius of curvature is 60mm and 50mm.

In the above-mentioned technical solutions, the metal decking is made of stainless steel, and imitates tissue material for realizing sound-heat Material is exchanged with heat quick between body mould external environment, to keep inside and outside with mutually synthermal.

In the above-mentioned technical solutions, the plane sound window, the first concave surface sound window, the second concave surface sound window and third concave surface sound window Heat vulcanized silicone rubber is all made of to be made;Its acoustics and thermal characteristic parameter imitate human cuticular tissue.

In the above-mentioned technical solutions, the first closing rubber and the second closing rubber are blocked by gluing close to bottom faces Two circular holes at the center of plate, circular hole are functioned firstly as sound-heat and imitate organization material filling entrance, inject after closure as Precerving liquid Position;Wherein, the first closing rubber and the second closing rubber are all made of vacuum rubber and are made.

In the above-mentioned technical solutions, the load mould can be not only used in air environment, it can also be used in water bath.Institute Stating load mould includes: that non-aqueous bath temperature rises test and water-bath temperature rise test to the thermometric mode that transabdominal ultrasonography is popped one's head in.

The present invention has the advantages that

1, load mould of the invention is using the stainless sheet steel with good thermal conductivity and stable material quality as shell A part, it is ensured that the imitative organization material of the sound-heat filled quickly obtains and the constant ambient temperature as defined in standard.

2, sound-heat imitates the unidirectional sound path in organization material in 18mm or more, and lays in the front of sent out ultrasonic beam There is sound absorption liner, it can be ensured that its effective attenuation will not influence the measured value of the thermal field and surface temperature of probe near temperature thermocouple.

3, body mould shell is full-closed structure, not only improves the stabilization that sound-heat imitates organization material ingredient, and convenient in standard It is used under two kinds of environment of defined air and water-bath.

4, sound-heat, which imitates organization material, has maintainability, and rubber and the second closing rubber can be closed via first on bottom plate Skin injection Precerving liquid, it is ensured that material composition harmony-thermal characteristics is stablized, and has the long life.

Detailed description of the invention

Fig. 1 is a kind of front view of load mould for the measurement of transabdominal ultrasonography surface temperature of probe of the invention;

Fig. 2 is a kind of front cross-sectional view of load mould for the measurement of transabdominal ultrasonography surface temperature of probe of the invention;

Fig. 3 is that a kind of load mould for the measurement of transabdominal ultrasonography surface temperature of probe of the invention pops one's head in plane antenna Carry out the schematic diagram of non-immersion method measurement;

Fig. 4 is that a kind of load mould for the measurement of transabdominal ultrasonography surface temperature of probe of the invention carries out convex array probe The schematic diagram of non-immersion method measurement;

Fig. 5 is that a kind of load mould for the measurement of transabdominal ultrasonography surface temperature of probe of the invention pops one's head in plane antenna Carry out the schematic diagram of immersion method measurement;

Fig. 6 is that a kind of load mould for the measurement of transabdominal ultrasonography surface temperature of probe of the invention carries out convex array probe The schematic diagram of immersion method measurement.

Appended drawing reference:

1, load mould 2, front frame board

3, metal decking 4, rear frame panel

5, plane sound window 6, the first concave surface sound window

7, the second concave surface sound window 8, third concave surface sound window

9, retaining-plate 10, top connect panel

11, side panel 12, side connect panel

13, sound-heat imitates organization material 14, side sound absorption liner

15, bottom surface sound absorption liner 16, bottom plate

17, the first closing rubber 18, second closes rubber

19, the first bolt 20, the second bolt

21, thermocouple seal wire 22, thermojunction type point thermometer

23, ultrasonic coupling agent 24, plane antenna probe

25, plane antenna probe acoustic lens 26, convex array probe

27, convex array probe acoustic lens 28, temperature control sink

29, distilled water 30, thermometer

31, the water surface

Specific embodiment

As shown in Figure 1, 2, the present invention provides it is a kind of for transabdominal ultrasonography surface temperature of probe measurement load mould, Structure includes body mould shell, the imitative organization material 7 of sound-heat and retaining-plate 9;The body mould shell is fixed on retaining-plate 9, outside body mould Filling sound-heat imitates organization material 7 inside shell;Wherein, the body mould shell is Irregular hexahedron structure;As shown in Fig. 2, described Body mould shell further comprises: bottom plate 16, front frame board 2,4, two metal deckings 3 of rear frame panel, side connect panel 12, side Plate 11, top connection panel 10, plane sound window 5, the first concave surface sound window 6, the second concave surface sound window 7 and third concave surface sound window 8;It is close Fixing threaded hole there are two symmetrically opening at the both ends of bottom plate 16 is passed through by the first bolt 19 and the second bolt 20 corresponding respectively Fixing threaded hole, and be fixed on retaining-plate 9;Circular hole there are two symmetrically being opened at the center of bottom plate 16, and pass through the first envelope It closes rubber 17 and the second closing rubber 18 blocks described two circular holes;The top of body mould shell is equipped with the second concave surface sound window 7 and the Three concave surface sound windows 8, and be connected with top therebetween and connect panel 10;It is put between the top and bottom of body mould shell by opposite The side connection panel 12 and side panel 11, front frame board 2 staggered relatively and rear frame panel 4 set connect, and side connects on panel 12 Equipped with plane sound window 5 and the first concave surface sound window 6;Heat-conducting metal panel is inlayed at the middle part and 4 middle part of rear frame panel of front frame board 2 3。

In the above-mentioned technical solutions, the body mould shell is mutually bonded using poly (methyl methacrylate) plate and is made;As shown in Fig. 2, bottom Sound absorption liner 15 in bottom surface is pasted on the inner wall at 16 middle part of plate;Equipped with side sound absorption liner 14 on the inner wall of side panel 11, it is used for Incident ultrasonic wave is absorbed, sound-heat caused by eliminating because of its reflection is imitated 13 temperature of organization material and increased.

In the above-mentioned technical solutions, it as shown in Fig. 2, being symmetrically provided with fixing threaded hole at the both ends of retaining-plate 9, and props up The position of fixing threaded hole and the position of fixing threaded hole on bottom plate 16 correspond on backplate 9, pass through the first bolt 19 and the second spiral shell Bolt 20 passes through corresponding fixing threaded hole, and is fixed on retaining-plate 9.

In the above-mentioned technical solutions, it is aqueous high molecular gel based composites that the sound-heat, which imitates organization material 13,.Have Acoustic characteristic and thermal characteristic as defined in standard.Wherein, imitating organization material acoustics parameters includes: the velocity of sound (1540 ± 10) m/ S, acoustic attenuation coefficient slope (0.5 ± 0.1) dB/ (cmMHz);Its thermal characteristic parameter includes: specific heat (3500 ± 500) J/ (kgK), thermal conductivity (0.5 ± 0.1) W/ (mK).The imitative organization material has maintainability, using through the first closing rubber The Precerving liquid of skin and the second closing rubber injection, supplement penetrate the evaporation loss in sheathing material gap, keep its ingredient and acoustics, Stablizing for thermal characteristic is constant, it is ensured that the service life of body mould was up to as long as the several years, became product quality inspection worthy of the name Fixed equipment.

In the above-mentioned technical solutions, as shown in Fig. 2, the sound-heat imitate organization material in unidirectional sound path 18cm with On, it can be ensured that incident ultrasound wave is sufficiently decayed, and the measured value of the thermal field and surface temperature of probe near temperature thermocouple will not be influenced.

In the above-mentioned technical solutions, as shown in Fig. 2, side connection panel 12 is equipped with the first opening and the second opening; Second opening is located on the first opening;First opening bonds plane sound window 5, is used for couple planar linear array probe and curvature Radius is the convex array probe of 76mm;Second opening bonds the first concave surface sound window 6, and the radius of curvature of exposed surface is 20mm, It is used for the convex array probe that coupling radius of curvature is 20mm, 15mm, 10mm;Also according to specific needs, by its exposed surface Curvature is changed to 15mm or 10mm.

In the above-mentioned technical solutions, the top connection panel 10 is equipped with third opening and the 4th opening, and third is opened Pass through top between mouth and the 4th opening and connects the connection of panel 10;Third opening bonds the second concave surface sound window 7, exposed surface Radius of curvature be 40mm, be used for coupling radius of curvature be 40mm and 30mm convex array probe;Also according to specific needs, will The radius of curvature of its exposed surface is changed to 30mm;4th opening bonds third concave surface sound window 8, the radius of curvature of exposed surface For 60mm, it is used for the convex array probe that coupling radius of curvature is 60mm and 50mm;Also according to specific needs, by its exposed surface Radius of curvature be changed to 50mm.

In the above-mentioned technical solutions, the metal decking 3 is made of stainless steel, and imitates tissue for realizing sound-heat Rapid heat between material 13 and body mould external environment exchanges, and makes inside and outside with mutually synthermal.

In the above-mentioned technical solutions, the plane sound window 5, the first concave surface sound window 6, the second concave surface sound window 7 and third concave surface Sound window 8 is all made of heat vulcanized silicone rubber and is made.

In the above-mentioned technical solutions, the first closing rubber 17 and the second closing rubber 18 are blocked by gluing the bottom of close to Two circular holes at the center of portion's panel 16 are used as maintenance with the-heat imitative filling of organization material 13 entrance of uttering a word before closing after closing Liquid injection position, the first closing rubber 17 and the second closing rubber 18 are all made of vacuum rubber and are made.

In the above-mentioned technical solutions, the load mould 1 can be not only used in air environment, it can also be used in water bath. The thermometric mode that the load mould 1 pops one's head in transabdominal ultrasonography includes: that non-aqueous bath temperature rises test and water-bath temperature rise test.

Wherein, as shown in figures 3 to 6, non-immersion method thermometric is load mould 1 to be placed in air, and keep environment temperature It spends constant, then couples the radiating surface of tested probe with corresponding sound window, thermojunction type point thermometer 22 is used to measure the ultrasound The temperature change of detecting head surface.Immersion method thermometric is that load mould 1 is placed in temperature control sink 28, is controlled by the temperature of sink Mechanism makes the acquirement of load mould 1 and the constant temperature in water-bath, then couples tested ultrasonic probe with corresponding sound window, uses The temperature change on the measurement of the thermojunction type point thermometer 22 ultrasonic probe surface.

As shown in Figure 3 and Figure 4, load mould 1 carries out non-immersion method to plane antenna probe 24 or convex array probe 26 respectively The example of thermometric.When using load mould 1, need load mould 1, tested ultrasonic probe and ultrasonic coupling agent 23 being placed in dress There is the septulum in the room of air conditioner or in big room to sow discord interior, room or the control of compartment temperature maintain within the scope of 23 ± 3 DEG C 3 hours, so that sound-heat in load mould 1, which imitates organization material 13, obtains the temperature of external environment, and record ambient temperature Explicit value;According to the tested ultrasonic probe radiating surface measured shape (plane antenna pop one's head in 25/ convex array probe sound of acoustic lens it is saturating 27 curvature of mirror) the corresponding sound window of selection, so that tested ultrasonic probe radiating surface obtains contact surface big as far as possible with corresponding sound window Product;And appropriate ultrasonic coupling agent 23 is put into the middle part of corresponding sound window couples it sufficiently.Then thermocouple seal wire 21 is placed in Between tested ultrasonic probe radiating surface and corresponding sound window, keep three's coupling appropriate, the handle of tested ultrasonic probe is mechanical Device is fixed.Tested ultrasonic probe and tested ultrasonic device are connected, and tested ultrasonic device is switched on, is completed in required time pre- Heat.Tested ultrasonic device screen is shown into " defrosting ", keeps tested ultrasonic probe in running order, and continue 30 minutes.From heat The temperature of tested ultrasonic probe radiating surface is read in the gauge outfit of galvanic couple formula point thermometer 22 and is recorded, value and external environment temperature The difference of degree is no more than 10 DEG C for qualification.

As it can be seen in figures 5 and 6, load mould 1 carries out immersion method thermometric to plane antenna probe 24 or convex array probe 26 respectively Example.It when using immersion method thermometric, needs for load mould 1 to be put into temperature control sink 28, which, which should have, adds Heat and agitating function, and can measure water temperature.Distilled water 29 is added into temperature control sink 28 to being higher by load mould test specimen upper surface About 1cm;Water temperature is set in 33 DEG C, stirring and the heating function of temperature control sink 28 is opened, maintains 3 hours, so that load mould 1 Interior imitative organization material 13 obtains bath temperature.According to tested ultrasonic probe radiating surface shape (plane antenna probe acoustic lens 25/ 27 curvature of convex array probe acoustic lens) the corresponding sound window of selection, so that tested ultrasonic probe radiating surface and sound window acquirement are big as far as possible Contact area.Distilled water 29 in temperature control sink 28 is taken out into a part, so that the sound window is exposed the surface, is specifically shown in plane in Fig. 5 The relationship of sound window 5 and the water surface 31;For the lowest part of the second concave surface sound window 7 as shown in the sound window Fig. 6 of concave surface, should be exposed, to protect It demonstrate,proves the second concave surface sound window 7 and is completely exposed the water surface 31;Appropriate ultrasonic coupling agent 23 is stacked in corresponding sound window central part, by thermoelectricity Even seal wire 21 is placed between probe radiating surface and corresponding sound window, keeps three's coupling appropriate, by the handle mechanical device of probe It is fixed.Tested ultrasonic probe and tested ultrasonic device are connected, and tested ultrasonic device is switched on, completes preheating in required time. Tested ultrasonic device screen is shown into " defrosting ", keeps tested ultrasonic probe in running order, for not having automatic stay function The ultrasonic probe of energy, run duration are 30 minutes;Has the probe of automatic stay function, when before its automatic stay Between length less than 30 minutes when, enable it be again started up immediately, until gather together enough 30 minutes, guarantee that it is continued working 30 minutes.From heat And environment the temperature of probe radiating surface is read in the gauge outfit of galvanic couple formula point thermometer 22 and is recorded, and value is no more than 43 DEG C, i.e., Temperature difference is no more than 10 DEG C for qualification.

In other specific embodiments, the distilled water 29 can be replaced by deionized water.

It is last it is noted that, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered of the invention In claim.

14页详细技术资料下载
上一篇:一种医用注射器针头装配设备
下一篇:一种用于侵入式超声探头表面温度测量的负载体模

网友询问留言

已有0条留言

还没有人留言评论。精彩留言会获得点赞!

精彩留言,会给你点赞!