CN102854256A - Signal switching apparatus for phased array ultrasonic transducer characteristic measurement - Google Patents
Signal switching apparatus for phased array ultrasonic transducer characteristic measurement Download PDFInfo
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- CN102854256A CN102854256A CN2012103213886A CN201210321388A CN102854256A CN 102854256 A CN102854256 A CN 102854256A CN 2012103213886 A CN2012103213886 A CN 2012103213886A CN 201210321388 A CN201210321388 A CN 201210321388A CN 102854256 A CN102854256 A CN 102854256A
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Abstract
The present invention relates to a signal switching apparatus for phased array ultrasonic transducer characteristic measurement. With the present invention, the automation problem of single array element characteristic measurement in the phased array ultrasonic transducer characteristic measurement is solved, and software can automatically select one or a plurality of array elements to perform characteristic measurement. According to the present invention, a switch signal control card is adopted to control an 8*8 relay array so as to achieve on-off control of 64 transducer array elements; and a manual switch is added, such that the control is more convenient. The most important characteristic of the signal switching apparatus of the present invention is that automated measurement of the single array element of the phased array ultrasonic transducer is achieved through the relay array.
Description
Technical field:
The present invention relates to the Ultrasonic NDT field, particularly each array element electrical impedance of phase array transducer, sensitivity, crosstalk and the testing and calibration of time-frequency domain, is a kind of signal switching apparatus for the phase array transducer feature measurement.
Background technology
In case being exactly transducer parameters, monocrystalline focused transducer weak point determines, its acoustic beam characteristic can not change, can not the focusing position during detection and burnt post size dynamically control, this will cause the detection sensitivity difference of different depth defective, can not do detailed inspection to inside workpiece, therefore be difficult to defective is carried out quantitative evaluation.And the acoustic beam deflection of ultrasonic phase array and dynamic focusing can address the above problem, ultrasonic phased array transducer is that the ultrasonic transducer array element of a plurality of certain sizes is arranged the array transducer that forms according to definite shape, by adjusting waveform, amplitude, the phase delay that each array element transmits in the array energy transducer, so that the sound wave of each array element emission is synthetic in the communication space stack, thereby realize focusing, the deflection texts of ultrasound beamformer, so that phase array transducer more and more is widely used in the nondestructive examination field.
For the design transducer and to the quantitative evaluation of defective very important meaning is arranged as the characteristic of the phase array transducer of the core component of phased array Dynamic Non-Destruction Measurement.Therefore the measurement of each array element characteristic of phase array transducer had theory and using value.
Summary of the invention:
The purpose of this invention is to provide a kind of signal switching apparatus for the phase array transducer feature measurement.The method has effectively realized the electrical impedance of each array element of phase array transducer, sensitivity, has crosstalked and the automatic measurement of time-frequency domain.
For achieving the above object, design of the present invention is: realize gating to 64 phase array transducer array elements by the relay array of one 8 * 8 of switching value control card control.
According to above-mentioned inventive concept, technical scheme of the present invention is as follows:
As Figure 1-3, cooperate software to control one 8 * 8 relay array by the switching value control card, thereby realized the independent control to each array element of phase array transducer of 64 array elements.And designed one group of hand switch (such as SL1～SL8 of Fig. 3 and SH1～SH8) so that control convenient.
Fig. 2 and Fig. 3 have expressed the schematic diagram of relay array to the control of 64 array elements.Fig. 2 is the connection diagram between pulse card feeding-discharging and phase array transducer, wherein K switch 1～K64 is relay switch, by 8 row, 8 row relays shown in Figure 3 (DL1～DL8 and DH1～DH8) control, namely when DLi and DHj energising, the coil electricity at i row and the capable intersection point of j place, corresponding relay closes, then this road conducting, and the coil of relay DL1～DL8 and DH1～DH8 is connected on respectively the IDO1 of switching value control card～IDO16 mouth, controls by computing machine.Also be furnished with hand switch SL1～SL8 and SH1～SH8 simultaneously so that control convenient.
Combine the above technical scheme of taking, reality purpose of the present invention.
The invention has the beneficial effects as follows: not only reasonable in design, simple and practical, and have easy to operately, and increase work efficiency, save testing cost and use the characteristics such as very convenient.
Description of drawings:
Fig. 1 signal switching apparatus schematic diagram of the present invention
Connection diagram between Fig. 2 phase array transducer of the present invention and pulse card feeding-discharging
Fig. 3 the present invention 8 * 8 relay array schematic diagrams
In Fig. 1-3,1: industrial computer; 2: the switching value control card; 3: hand switch; 4:8 * 8 relay arrays; 5: phase array transducer; 6: chromacoder; 7: the pulse card feeding-discharging.
Specific embodiments:
Details are as follows by reference to the accompanying drawings for specific embodiments of the present invention:
As shown in Figure 1, signal switching apparatus schematic diagram of the present invention, comprising: industrial computer (1), switching value control card (2), hand switch (3), 8 * 8 relay arrays (4), phase array transducer (5), signal switching apparatus (6), pulse card feeding-discharging (7).When a certain array element of phase array transducer (5) is measured, cooperate this array element of software gating by switching value control card (2) first, so that this array element is communicated with the pulse card feeding-discharging, thereby realized measurement to this array element characteristic.
The realization principle of relay array (4), as shown in Figures 2 and 3,64 relays have formed the matrix of 8 row and 8 row, have realized the independent control to 64 array elements of phase array transducer.
Claims (5)
1. signal switching apparatus that is used for the phase array transducer feature measurement, it is characterized in that: this signal switching apparatus is controlled one 8 * 8 relay array (4) by switching value control card (2), thereby has realized the independent control to 64 phase array transducer array elements.Also added simultaneously hand switch (3) so that control convenient.
2. signal switching apparatus according to claim 1, it is characterized in that: designed one by 8 capable relays and 8 matrix controllers (4) that the row relay forms, control the gating of 64 array element signals, thereby realized the automatic measurement to single array element characteristic.
3. signal switching apparatus according to claim 1 is characterized in that: utilized switching value control card (2) that relay array (4) is controlled, but not adopted addressing control of single-chip computer, so that control is more convenient.
4. signal switching apparatus according to claim 1, it is characterized in that: designed hand switch (3), thereby so that the gating of array element can be so that control by switching value control card (2) with industrial computer (1), also can manually control, thus so that more convenient to operate.
5. signal switching apparatus according to claim 1, it is characterized in that: when each array element characteristic of test phase array transducer (5), the input signal and the output signal that externally connect are drawn by a path, thereby have eliminated the dispersed error of path.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103213886A CN102854256A (en) | 2012-09-03 | 2012-09-03 | Signal switching apparatus for phased array ultrasonic transducer characteristic measurement |
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| CN2012103213886A CN102854256A (en) | 2012-09-03 | 2012-09-03 | Signal switching apparatus for phased array ultrasonic transducer characteristic measurement |
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| CN102854256A true CN102854256A (en) | 2013-01-02 |
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| CN2012103213886A Pending CN102854256A (en) | 2012-09-03 | 2012-09-03 | Signal switching apparatus for phased array ultrasonic transducer characteristic measurement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093209A (en) * | 2016-05-27 | 2016-11-09 | 浙江大学 | A kind of magnetostriction phased array horizontal shear wave guide energy converter |
| CN107402255A (en) * | 2017-06-22 | 2017-11-28 | 南京琅迪思信息技术有限公司 | A kind of blower fan main shaft surface defect supersonic array on-line detecting system |
| CN109283251A (en) * | 2017-07-19 | 2019-01-29 | 中国科学院声学研究所 | A kind of signal processing circuit of borehole wall imaging ultrasound phased array |
| CN110142194A (en) * | 2019-05-22 | 2019-08-20 | 京东方科技集团股份有限公司 | Acoustic wave transducer and driving method |
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| CN201786628U (en) * | 2010-09-17 | 2011-04-06 | 攀钢集团钢铁钒钛股份有限公司 | Manual automatic pumping controller |
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| DE3540704C2 (en) * | 1985-11-16 | 1994-02-24 | Swf Auto Electric Gmbh | Distance measuring device, in particular for motor vehicles |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093209A (en) * | 2016-05-27 | 2016-11-09 | 浙江大学 | A kind of magnetostriction phased array horizontal shear wave guide energy converter |
| CN107402255A (en) * | 2017-06-22 | 2017-11-28 | 南京琅迪思信息技术有限公司 | A kind of blower fan main shaft surface defect supersonic array on-line detecting system |
| CN107402255B (en) * | 2017-06-22 | 2020-01-17 | 南京琅迪思信息技术有限公司 | Ultrasonic array online detection system for surface defects of fan spindle |
| CN109283251A (en) * | 2017-07-19 | 2019-01-29 | 中国科学院声学研究所 | A kind of signal processing circuit of borehole wall imaging ultrasound phased array |
| CN110142194A (en) * | 2019-05-22 | 2019-08-20 | 京东方科技集团股份有限公司 | Acoustic wave transducer and driving method |
| WO2020233656A1 (en) * | 2019-05-22 | 2020-11-26 | 京东方科技集团股份有限公司 | Acoustic wave transducer and driving method |
| CN110142194B (en) * | 2019-05-22 | 2021-01-29 | 京东方科技集团股份有限公司 | Acoustic wave transducer and driving method |
| US11904360B2 (en) | 2019-05-22 | 2024-02-20 | Beijing Boe Technology Development Co., Ltd. | Acoustic wave transducer and driving method thereof |
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Application publication date: 20130102 |