CN212996503U - Acoustic testing device for annular ultrasonic transducer - Google Patents
Acoustic testing device for annular ultrasonic transducer Download PDFInfo
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- CN212996503U CN212996503U CN202020904237.3U CN202020904237U CN212996503U CN 212996503 U CN212996503 U CN 212996503U CN 202020904237 U CN202020904237 U CN 202020904237U CN 212996503 U CN212996503 U CN 212996503U
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- circular groove
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Abstract
The utility model discloses an acoustic testing device for an annular ultrasonic transducer, which comprises a positioning base and a positioning upper cover positioned above the positioning base, wherein the positioning upper cover is covered on the positioning base; a circular groove is formed in the top surface of the positioning base, a couplant cavity is formed between the positioning upper cover and the positioning base, an echo reflector matched with the circular groove is arranged in the couplant cavity, and the echo reflector is annular and coaxial with the circular groove; and the positioning upper cover is provided with a positioning through hole for positioning and installing the annular ultrasonic transducer, and the positioning through hole is coaxial with the circular groove. The utility model discloses an annular ultrasonic transducer acoustics testing arrangement can effectively solve the problem that the test procedure is loaded down with trivial details and inefficiency to have advantages such as simple structure, cost of manufacture low.
Description
Technical Field
The utility model belongs to the technical field of ultrasonic array transducer acoustics is measured, specific be an annular ultrasonic transducer acoustics testing arrangement.
Background
Ultrasonic testing is one of the most common means for medical disease diagnosis, and an ultrasonic transducer is a core component of ultrasonic testing. The ultrasonic transducer is provided with a plurality of piezoelectric wafers, and when in detection, the ultrasonic transducer detects biological tissues by converting electric signals into ultrasonic waves and converts the ultrasonic waves reflected by the tissues into electric signals to be output.
When the quality of the finished ultrasonic transducer is detected, the acoustic performance of the finished ultrasonic transducer is an important standard for judging whether the production quality of the ultrasonic transducer is qualified or not. In the prior art, an acoustic performance test of an ultrasonic transducer generally adopts a water immersion pulse reflection method, the ultrasonic transducer is fixed in a water tank with an adjustable direction and an adjustable angle, and large plane metal is used as a reflection target to test pulse echo time domain and frequency domain characteristics of a probe. Due to the directivity of ultrasonic waves, the sound wave emitting surface of the transducer needs to be adjusted to be parallel to the reflecting target and fixed in relative position during the test process so as to obtain consistency evaluation.
The testing device which adjusts the relative position and angle is more universal when detecting the single array element or the linear array, but the testing device has the defects of complex structure, high manufacturing cost, complicated testing steps and the like; for the problems of complex deviation, eccentricity and the like in the adjustment process of the transducer with the angle, an effective solution is not provided at present.
Disclosure of Invention
In view of this, the utility model aims at providing an annular ultrasonic transducer acoustics testing arrangement can effectively solve the loaded down with trivial details and the inefficiency problem of test procedure to have advantages such as simple structure, cost of manufacture are low.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an acoustic testing device for an annular ultrasonic transducer comprises a positioning base and a positioning upper cover positioned above the positioning base, wherein the positioning upper cover is covered on the positioning base; a circular groove is formed between the positioning upper cover and the positioning base to form a couplant cavity, an echo reflector matched with the circular groove is arranged in the couplant cavity, and the echo reflector is annular and coaxial with the circular groove; and the positioning upper cover is provided with a positioning through hole for positioning and installing the annular ultrasonic transducer, and the positioning through hole is coaxial with the circular groove.
Further, the circular groove is arranged on the top surface of the positioning base.
Further, the outer diameter of the echo reflector is equal to the inner diameter of the circular groove.
Furthermore, a positioning groove for positioning the annular ultrasonic transducer is further arranged at the bottom of the circular groove.
Furthermore, the positioning base is divided into two sections, the dividing surfaces of the two sections of positioning base are the sections passing through the axis of the circular groove, and a sealing strip is arranged between the dividing surfaces of the two sections of positioning base.
Furthermore, two lamella the both sides of location base are equipped with radially outwards extending engaging lug I respectively, be equipped with connect the via hole I on the engaging lug I.
Furthermore, the positioning upper cover and the positioning base are correspondingly provided with two petals, and the two petals are the cross sections passing through the axis of the positioning through hole.
Furthermore, two lamella the both sides of location upper cover are equipped with engaging lug II of radial outside extension respectively, be equipped with on the engaging lug II and step down the groove of stepping down of engaging lug I, just on the engaging lug II with connecting hole I corresponds and is equipped with connecting hole II.
Further, when the positioning upper cover covers the positioning base, the connecting through hole I and the connecting through hole II which are positioned on the same side are coaxial and are fixedly connected through a threaded connecting piece.
The beneficial effects of the utility model reside in that:
the utility model discloses an annular ultrasonic transducer acoustics testing arrangement, through set up annular echo reflector in circular recess to with the annular ultrasonic transducer location installation that awaits measuring in the location through-hole, so, can ensure that echo reflector and annular ultrasonic transducer are coaxial, make annular ultrasonic transducer transmitting surface parallel and the distance equals with the reflector; during testing, the couplant is injected into the couplant cavity to realize the testing, the relative position and the angle between the annular ultrasonic transducer and the echo reflector do not need to be adjusted, the testing steps can be effectively simplified, the testing efficiency is improved, and the test device has the advantages of simple structure, low manufacturing cost and the like.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:
fig. 1 is a schematic structural diagram of an acoustic testing apparatus for an annular ultrasonic transducer according to an embodiment of the present invention;
fig. 2 is an exploded view of the acoustic testing apparatus for an annular ultrasonic transducer according to the present embodiment.
Description of reference numerals:
1-an annular ultrasound transducer; 2, positioning an upper cover; 21-positioning the through hole; 22-connecting lug II; 23-connecting via II; 3-positioning the base; 31-a circular groove; 32-engaging lug I; 33-connecting via I; 4-a threaded connection; 5-sealing strips; 6-echo reflector; 7-couplant cavity.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1, it is a schematic structural diagram of an embodiment of the acoustic testing apparatus for an annular ultrasonic transducer of the present invention. The acoustic testing device for the annular ultrasonic transducer comprises a positioning base 3 and a positioning upper cover 2 located above the positioning base 3, wherein the positioning upper cover 2 is covered on the positioning base 3. A circular groove 31 is arranged between the positioning base 3 and forms the couplant cavity 7, and the circular groove 31 of the embodiment is arranged on the top surface of the positioning base 3. The couplant cavity 7 is internally provided with an echo reflector 6 matched with the circular groove 31, the echo reflector 6 is annular and coaxial with the circular groove 31, and specifically, the outer diameter of the echo reflector 6 of the embodiment is equal to the inner diameter of the circular groove 31. The positioning upper cover 2 is provided with a positioning through hole 21 for positioning and installing the annular ultrasonic transducer 1, and the positioning through hole 21 is coaxial with the circular groove 31. Preferably, the groove bottom of the circular groove 31 of the present embodiment is further provided with a positioning groove for positioning the annular ultrasonic transducer 1, and further positions and fixes the position of the annular ultrasonic transducer 1, so that the annular ultrasonic transducer 1 is concentric with the echo reflector 6 stably and reliably.
Specifically, the positioning base 3 of the present embodiment is divided into two halves, the dividing surfaces of the two halves of positioning base 3 are the cross-sections passing through the axis of the circular groove 31, and the sealing strip 5 is arranged between the dividing surfaces of the two halves of positioning base 3, so that the couplant can be prevented from leaking. Two sides of the two-flap positioning base 3 are respectively provided with a connecting lug I32 extending outwards in the radial direction, and the connecting lug I32 is provided with a connecting through hole I33. Similarly, the location upper cover 2 of this embodiment corresponds with location base 3 and establishes to two lamellas, and two lamellas location upper cover 2 are for crossing the cross-section of positioning hole 21 axis, and the both sides of two lamella location upper covers 2 are equipped with respectively radial outside engaging lug II 22 that extends, are equipped with the groove of stepping down engaging lug I32 on the engaging lug II 22, and correspond with connecting hole I33 on engaging lug II 22 and are equipped with connecting hole II 23. And when the positioning upper cover 2 covers the positioning base 3, the connecting through hole I33 and the connecting through hole II 23 which are positioned on the same side are coaxial and are connected and fixed by adopting the threaded connecting piece 4.
In the acoustic testing device for the annular ultrasonic transducer, the annular echo reflector is arranged in the circular groove, and the annular ultrasonic transducer to be tested is positioned and installed in the positioning through hole, so that the echo reflector and the annular ultrasonic transducer can be ensured to be coaxial, and the emitting surface of the annular ultrasonic transducer is parallel to the reflector and has the same distance with the reflector; during testing, the couplant is injected into the couplant cavity to realize the testing, the relative position and the angle between the annular ultrasonic transducer and the echo reflector do not need to be adjusted, the testing steps can be effectively simplified, the testing efficiency is improved, and the test device has the advantages of simple structure, low manufacturing cost and the like.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (9)
1. An annular ultrasonic transducer acoustic testing device, characterized in that: the device comprises a positioning base (3) and a positioning upper cover (2) positioned above the positioning base (3), wherein the positioning upper cover (2) is covered on the positioning base (3); a circular groove (31) is formed between the positioning upper cover (2) and the positioning base (3) to form a couplant cavity (7), an echo reflector (6) matched with the circular groove (31) is arranged in the couplant cavity (7), and the echo reflector (6) is annular and coaxial with the circular groove (31); and the positioning upper cover (2) is provided with a positioning through hole (21) for positioning and installing the annular ultrasonic transducer (1), and the positioning through hole (21) is coaxial with the circular groove (31).
2. The annular ultrasonic transducer acoustic testing device of claim 1, wherein: the circular groove (31) is arranged on the top surface of the positioning base (3).
3. The annular ultrasonic transducer acoustic testing device of claim 1, wherein: the outer diameter of the echo reflector (6) is equal to the inner diameter of the circular groove (31).
4. The annular ultrasonic transducer acoustic testing device of claim 1, wherein: and a positioning groove for positioning the annular ultrasonic transducer (1) is further arranged at the bottom of the circular groove (31).
5. The annular ultrasonic transducer acoustic testing apparatus of any one of claims 1 to 4, wherein: the positioning base (3) is divided into two parts, the dividing surfaces of the two parts of positioning base (3) are sections passing through the axis of the circular groove (31), and a sealing strip (5) is arranged between the dividing surfaces of the two parts of positioning base (3).
6. The annular ultrasonic transducer acoustic testing apparatus of claim 5, wherein: two lamella the both sides of location base (3) are equipped with engaging lug I (32) of radial outside extension respectively, be equipped with connect the via hole I (33) on engaging lug I (32).
7. The annular ultrasonic transducer acoustic testing device of claim 6, wherein: the positioning upper cover (2) and the positioning base (3) are correspondingly arranged into two petals, and the two petals are the sections of the positioning upper cover (2) passing through the axis of the positioning through hole (21).
8. The annular ultrasonic transducer acoustic testing apparatus of claim 7, wherein: two lamella the both sides of location upper cover (2) are equipped with engaging lug II (22) of radial outside extension respectively, be equipped with on engaging lug II (22) and abdicate the groove of abdicating of engaging lug I (32), just on engaging lug II (22) with connecting hole I (33) correspond and are equipped with connecting hole II (23).
9. The annular ultrasonic transducer acoustic testing device of claim 8, wherein: when the positioning upper cover (2) covers the positioning base (3), the connecting through hole I (33) and the connecting through hole II (23) which are positioned on the same side are coaxial and are fixedly connected by a threaded connecting piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020904237.3U CN212996503U (en) | 2020-05-26 | 2020-05-26 | Acoustic testing device for annular ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020904237.3U CN212996503U (en) | 2020-05-26 | 2020-05-26 | Acoustic testing device for annular ultrasonic transducer |
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| Publication Number | Publication Date |
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| CN212996503U true CN212996503U (en) | 2021-04-20 |
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| CN202020904237.3U Active CN212996503U (en) | 2020-05-26 | 2020-05-26 | Acoustic testing device for annular ultrasonic transducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113576518A (en) * | 2021-07-06 | 2021-11-02 | 逸超科技(北京)有限公司 | Performance test method and device for convex array probe |
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2020
- 2020-05-26 CN CN202020904237.3U patent/CN212996503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113576518A (en) * | 2021-07-06 | 2021-11-02 | 逸超科技(北京)有限公司 | Performance test method and device for convex array probe |
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