CN202103853U - Ultrasonic transducer testing device - Google Patents
Ultrasonic transducer testing device Download PDFInfo
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- CN202103853U CN202103853U CN201120138272XU CN201120138272U CN202103853U CN 202103853 U CN202103853 U CN 202103853U CN 201120138272X U CN201120138272X U CN 201120138272XU CN 201120138272 U CN201120138272 U CN 201120138272U CN 202103853 U CN202103853 U CN 202103853U
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Abstract
The utility model discloses an ultrasonic transducer testing device, relating to a detecting technology of a transducer working state under working conditions, in particular relating to a performance detecting technology under the working conditions of a piezoelectric ceramic transducer. The ultrasonic transducer testing device is suitable for detecting various ultrasonic transducers. The device consists of a transducer high-pressure measuring cylinder body (1), a high-precision pressure transmitter (3), a high-precision temperature pressure transmitter (6), a high-precision ultrasonic transducer feature tester (9), a gas pressurizing device and a calculating unit (10); a plurality of pairs of transducers can be detected simultaneously through simulating the working conditions, so that performance detection of the transducer before a detecting instrument is mounted, the production debugging period is effectively reduced, the sieving and pairing efficiency of the transducer is improved, and the ultrasonic transducer device is beneficial for the production of domestic transducers in scale. The ultrasonic transducer device is used for realizing the separation of a gas source and the testing device and the separation of testers and the testing device, is used for ensuring the safety of the testers under a pressure state of the equipment, and is convenient, safe and reliable to operate.
Description
Technical field
The ultrasonic transducer testing apparatus relates to the detection technique to the transducer operating state under working condition; Refer more particularly to the Performance Detection technology under the piezoelectric ceramic transducer working condition, be applicable to detection various ultrasonic transducers.
Background technology
Ultrasonic transducer is parts of realizing that acoustic energy and electric energy are changed each other, the sandwich transducer that to be ten thousand bright (P.Langevin) of P. designed for undersea detection in 1917 of ultrasonic transducer the earliest.Occurred the laminated type magnetostrictive transducer in 1933 later on, intensity height, good stability, power capacity have replaced Langevin transducer at that time greatly, rapidly.To the fifties, because succeeding in developing of various piezoelectrics risen Langevin type ultrasonic transducer once again.Ultrasonic transducer is of wide application at present; And to the small degree of ultrasonic measurement precision, measuring range, measurement power and device require increasingly highly, its developing direction is high-power, low-voltage driving, high frequency, filmization, microminiaturization, integrated trend.Ultrasonic transducer always is various ultrasonic technique key in application parts.The ultrasonic transducer testing apparatus mainly is to be directed against transducer before being unkitted table; Does the performance parameter of each pressure spot emitting performance and reception have consistency under different pressure in certain variable quantity scope? Carry out pairing of transducer oscillator and screening according to data simultaneously.
Adopt atmospheric pressure state to detect pairing to the detection of transducer at present, can not examine the performance of transducer under different pressures effectively, be mounted on the product table body and do pressure test again, influence transducer matching efficiency and large-scale production.
Summary of the invention
The utility model purpose is, provides a kind of easy and simple to handle, safe, reliable, can simulate that the detection transducer changes the transducer Effect on Performance at pressure under working condition, carries out the ultrasonic transducer measurement mechanism of pairing of transducer oscillator and screening.
The utility model testing apparatus mainly is made up of transducer high-tension measurement cylindrical shell, high-precision ultrasound transducer characteristics tester, high-precision pressure transmitter, high accuracy temperature and pressure transmitter, gas pressurized device, computing unit.Gas pressurized device is formed by driving source of the gas, nitrogen cylinder and vacuum pump, in computing unit, is written into ultrasonic transducer and detects software.
High-tension measurement cylindrical shell in the utility model according to country's " GB/T150-1998 GB150-1998 " standard design manufacturing to guarantee the safe and reliable of high-tension measurement cylindrical shell.Transducer high-tension measurement cylindrical shell is through the connecting bolt nut, and flange is fixed on the support; The high-precision pressure transmitter, intake valve, safety valve; High-precision temperature transmitter and corresponding be provided with some to the top of transducer holder sealing and fixing at transducer high-tension measurement cylindrical shell; Some seized transducer is fixed in the transducer holder, vacuum gas discharge valve, the vent valve sealing and fixing is in the bottom of transducer high-tension measurement cylindrical shell; Vacuum gas discharge valve is connected with vacuum pump, and intake valve is connected with the driving source of the gas with nitrogen cylinder; Seized transducer, high-precision pressure transmitter, the high-precision temperature change is sent by cable and is connected with high-precision ultrasound transducer characteristics tester circuit, and the PORT COM on the high-precision ultrasound transducer characteristics tester is connected with computing unit with the RS232 data wire.
During the work of the utility model transducer test device, with many transducer to be detected is fixedly installed in the transducer holder by group is corresponding, and measure the distance L of every pair of transducer; Start vacuum pump; With as far as possible vacuum pumping in the transducer high-tension measurement cylindrical shell, the pressure transmitter output valve is to close vacuum gas discharge valve after the negative pressure value of a setting, opens intake valve then; Charge into 99.9% pure nitrogen gas; Make transducer high-tension measurement barrel bear the pressure of 0MPa, want detection limit transducer high-tension measurement cylindrical shell air tight simultaneously, then start high-precision ultrasound transducer characteristics tester and computing unit.Simulation detects the performance of seized transducer under the working condition pressure condition; Detect each pressure state point through the mode that circulates or progressively boost; Every pair of transducer is alternately launched and acknowledge(ment) signal; Write down the pressure of each pressure state point respectively, directly read Mintrop wave, subwave, three ripples, peak-to-peak value, frequency signal, the frequency characteristic curve diagram of transducer at every pressure spot by the detection software of computing unit.After the detection of boosting finishes; Through the circulation or progressively mode detect each pressure state point; Every pair of transducer is alternately launched and acknowledge(ment) signal; Write down the pressure of each pressure state point respectively, calculate Mintrop wave, subwave, three ripples, peak-to-peak value, frequency signal, the frequency characteristic curve diagram of every pressure spot transducer by computing unit.
During test emission output acoustic pressure; With a broadband reception transducer is standard; The signal excitation transmitting transducer that signal generator sends different frequency, identical voltage sends acoustical signal; The standard receiving transducer receives corresponding amplitude signal, draws the correspondent frequency performance diagram through the detection software of computing unit, thereby obtains the emission output frequency characteristic of seized transducer.
During the test receiving sensitivity; With a broadband emission transducer is standard; Signal generator sends signal excitation standard emission transducer, and the standard emission transducer sends frequency difference, acoustical signal that acoustic pressure is identical, and receiving transducer receives corresponding amplitude signal; Detection software through computing unit is drawn the correspondent frequency performance diagram, thereby obtains the receiving sensitivity characteristic of seized transducer.
To the screening and the pairing of transducer, according to testing result, find out three ripples, two transducers identical or close with peak value, to its test signal, compare three ripples and peak value, guarantee that ratio in the scope of setting, can match.
After detecting end, emit earlier the nitrogen in the high-tension measurement cylindrical shell gradually, behind the pressure in the release cylindrical shell, again transducer to be detected is laid down from transducer holder.
The utility model has the advantages that: fully under the simulated condition condition transducer is being checked; Can process and detect the pairing performance of transducer when pressure changes in advance; The performance of transducer is more near actual; Realize the Performance Detection of transducer before the detecting instrument of not packing into, effectively reduced the cycle of producing debugging, improved the efficient of large-scale production.RS232/RS485 communication port through high-precision ultrasound transducer characteristics tester is transferred to computing unit with each channel parameters of transducer to be detected, in real time comparison and detection numerical value; Changed ultrasonic transducer and detected method of matching at atmospheric pressure state; Improved effectively transducer under the different pressures changing condition to the test of performance impact, changed in the past the transducer list to detecting, realized many transducer being detected simultaneously; Improved the efficient of transducer pairing; Help the production of the homemade transducer of scale, the utility model has realized that also source of the gas separates with testing apparatus, and the tester separates with testing apparatus; Thereby guaranteed the safety of testing crew under the equipment pressure state, and the operation tube just, safely, reliably.
Description of drawings
Fig. 1. the ultrasonic transducer testing apparatus connects sketch map,
Fig. 2. transducer high-tension measurement cylindrical shell sketch map,
Fig. 3. seized transducer sketch map,
Wherein: transducer high-tension measurement cylindrical shell 1, transducer holder 2, high-precision pressure transmitter 3, intake valve 4, safety valve 5; High-precision temperature transmitter 6, vacuum gas discharge valve 7, vent valve 8, high-precision ultrasound transducer characteristics tester 9; Computing unit 10, nitrogen cylinder 11 drives source of the gas 12, vacuum pump 13; Seized transducer 14, connecting bolt nut 15, flange 16, support 17.
Embodiment
In conjunction with accompanying drawing the utility model is done further to describe.Transducer high-tension measurement cylindrical shell 1 is through connecting bolt nut 15, and flange 16 is fixed on the support 17.High-precision pressure transmitter 3; Intake valve 4; Safety valve 5, high-precision temperature transmitter 6 and some transducer holder 2 sealing and fixing that correspondence is provided with are on the top of transducer high-tension measurement cylindrical shell 1, and seized transducer 14 is fixed in the transducer holder 2; Vacuum gas discharge valve 7, vent valve 8 sealing and fixing are in the bottom of transducer high-tension measurement cylindrical shell 1.Seized transducer 14 and high-precision pressure transmitter 3; High-precision temperature becomes and to send 6 to be connected with high-precision ultrasound transducer characteristics tester 9 circuit by cable; PORT COM on the high-precision ultrasound transducer characteristics tester 9 is connected with computing unit 10 with the RS232 data wire, in calculating list 10, is written into transducer and detects software.Gas pressurized device is formed by driving source of the gas 12, nitrogen cylinder 11 and vacuum pump 13, and vacuum gas discharge valve 7 is connected with vacuum pump 13, and intake valve 4 is connected with driving source of the gas 12 with nitrogen cylinder 11.
During the utility model work, transducer 14 to be detected is pressed in the corresponding fixing of energy converter seat 2 of group, and measured the distance L of every pair of transducer; Start vacuum pump 13, with vacuum pumping as far as possible in the transducer high-tension measurement cylindrical shell 1, the pressure transmitter output valve is to close vacuum gas discharge valve 7 after the negative pressure value of a setting; Open intake valve 4 then; Charge into 99.9% pure nitrogen gas, and make transducer high-tension measurement cylindrical shell 1 inside bear the pressure of 0MPa, want detection limit transducer high-tension measurement cylindrical shell 1 air tight simultaneously.Then start high-precision ultrasound transducer characteristics tester 9 and computing unit 10; Simulation detects the performance of seized transducer 14 under working condition; Boost detect progressively from 0,2,5,10...... is to maximum rated pressure (kg) pressure state point; Every pair of transducer is alternately launched and acknowledge(ment) signal; Wait for the stable back of pressure and temp read test numerical value, write down the pressure of each pressure state point respectively, directly read Mintrop wave, subwave, three ripples, peak-to-peak value, frequency signal, the frequency characteristic curve diagram of transducer at every pressure spot by the detection software of computing unit 10.After the detection of boosting finishes; Step-down detect progressively from maximum rated pressure (kg) ... 10,5,2,0 (kg) pressure state point; Every pair of transducer is alternately launched and acknowledge(ment) signal, after the wait pressure and temp is stable, read test numerical value; Write down the pressure of each pressure state point respectively, calculate Mintrop wave, subwave, three ripples, peak-to-peak value, frequency signal, the frequency characteristic curve diagram of every pressure spot transducer by computing unit 10.
During test emission output acoustic pressure; With a broadband reception transducer is standard; The signal excitation transmitting transducer that signal generator sends different frequency, identical voltage sends acoustical signal; The standard receiving transducer receives corresponding amplitude signal, draws the correspondent frequency performance diagram through the detection software of computing unit 10, thereby obtains the emission output frequency characteristic of seized transducer 14.
During the test receiving sensitivity; With a broadband emission transducer is standard; Signal generator sends signal excitation standard emission transducer, and the standard emission transducer sends frequency difference, acoustical signal that acoustic pressure is identical, and receiving transducer receives corresponding amplitude signal; Detection software through computing unit 10 is drawn the correspondent frequency performance diagram, thereby obtains the receiving sensitivity characteristic of seized transducer 14.
To the screening and the pairing of seized transducer, according to testing result, find out three ripples, two the seized transducers identical or close with peak value, to its test signal, compare three ripples and peak value, guarantee that ratio in the scope of setting, can match.
After detecting end, emit earlier the nitrogen in the transducer high-tension measurement cylindrical shell 1 gradually, behind the pressure in the release cylindrical shell, transducer 14 to be detected is laid down from transducer holder 2 again, the end transducer detects and pairing work.
Claims (1)
1. ultrasonic transducer testing apparatus; Form by transducer high-tension measurement cylindrical shell (1), high-precision pressure transmitter (3), high accuracy temperature and pressure transmitter (6), high-precision ultrasound transducer characteristics tester (9), gas pressurized device, computing unit (10); It is characterized in that: transducer high-tension measurement cylindrical shell (1) is through connecting bolt nut (15), and flange (16) is fixed on the support (17); High-precision pressure transmitter (3); Intake valve (4); Safety valve (5), high-precision temperature transmitter (6) and corresponding transducer holder (2) sealing and fixing that is provided with are on the top of transducer high-tension measurement cylindrical shell (1), and seized transducer (14) is fixed in the transducer holder (2); Vacuum gas discharge valve (7); Vent valve (8) sealing and fixing is in the bottom of transducer high-tension measurement cylindrical shell (1), and vacuum gas discharge valve (7) is connected with vacuum pump (13), and intake valve (4) is connected with driving source of the gas (12) with nitrogen cylinder (11); Seized transducer (14) and high-precision pressure transmitter (3); The high-precision temperature change send (6) to be connected with high-precision ultrasound transducer characteristics tester (9) circuit by cable, and the PORT COM on the high-precision ultrasound transducer characteristics tester (9) is connected with computing unit (10) with the RS232 data wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120138272XU CN202103853U (en) | 2011-05-04 | 2011-05-04 | Ultrasonic transducer testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120138272XU CN202103853U (en) | 2011-05-04 | 2011-05-04 | Ultrasonic transducer testing device |
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| CN202103853U true CN202103853U (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120138272XU Expired - Fee Related CN202103853U (en) | 2011-05-04 | 2011-05-04 | Ultrasonic transducer testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611982A (en) * | 2012-03-26 | 2012-07-25 | 浙江大学 | Fixture for calibrating microphone |
| CN103245402A (en) * | 2013-04-26 | 2013-08-14 | 宁波水表股份有限公司 | Screening and detecting method for ultrasonic water flow detection transducers |
| CN105300463A (en) * | 2015-11-24 | 2016-02-03 | 重庆川仪自动化股份有限公司 | Selection method and selection system of ultrasonic transducer as well as ultrasonic flowmeter |
| CN105744457A (en) * | 2016-04-18 | 2016-07-06 | 格云特自动化科技（深圳）有限公司 | Audio device frequency response testing device and method |
| CN108776238A (en) * | 2018-07-27 | 2018-11-09 | 中科传启（苏州）科技有限公司 | Ultrasonic wind velocity indicator transducer performance degradation mode detection method |
| CN110366853A (en) * | 2017-03-13 | 2019-10-22 | ams国际有限公司 | The method of microphone and test microphone |
| CN114264905A (en) * | 2021-12-17 | 2022-04-01 | 海鹰企业集团有限责任公司 | Testing device, system and method for electrical performance of logging transducer under simulated deep well environment |
-
2011
- 2011-05-04 CN CN201120138272XU patent/CN202103853U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611982B (en) * | 2012-03-26 | 2014-06-11 | 浙江大学 | Fixture for calibrating microphone |
| CN102611982A (en) * | 2012-03-26 | 2012-07-25 | 浙江大学 | Fixture for calibrating microphone |
| CN103245402A (en) * | 2013-04-26 | 2013-08-14 | 宁波水表股份有限公司 | Screening and detecting method for ultrasonic water flow detection transducers |
| CN103245402B (en) * | 2013-04-26 | 2015-10-28 | 宁波水表股份有限公司 | A kind of ultrasonic water flow detects the selective mechanisms method of transducer |
| CN105300463A (en) * | 2015-11-24 | 2016-02-03 | 重庆川仪自动化股份有限公司 | Selection method and selection system of ultrasonic transducer as well as ultrasonic flowmeter |
| CN105744457A (en) * | 2016-04-18 | 2016-07-06 | 格云特自动化科技（深圳）有限公司 | Audio device frequency response testing device and method |
| CN105744457B (en) * | 2016-04-18 | 2019-04-09 | 格云特自动化科技（深圳）有限公司 | Audio parts frequency response test device and method |
| CN110366853B (en) * | 2017-03-13 | 2021-03-16 | ams国际有限公司 | Microphone and method of testing microphone |
| CN110366853A (en) * | 2017-03-13 | 2019-10-22 | ams国际有限公司 | The method of microphone and test microphone |
| US11089419B2 (en) | 2017-03-13 | 2021-08-10 | Ams International Ag | Microphone and method of testing a microphone |
| CN108776238A (en) * | 2018-07-27 | 2018-11-09 | 中科传启（苏州）科技有限公司 | Ultrasonic wind velocity indicator transducer performance degradation mode detection method |
| CN108776238B (en) * | 2018-07-27 | 2020-08-14 | 中科传启（苏州）科技有限公司 | Ultrasonic anemometer transducer performance deterioration state detection method |
| CN114264905A (en) * | 2021-12-17 | 2022-04-01 | 海鹰企业集团有限责任公司 | Testing device, system and method for electrical performance of logging transducer under simulated deep well environment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20170504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |