CN103033566A - Automatic detecting device for spread angle of ultrasonic probe - Google Patents
Automatic detecting device for spread angle of ultrasonic probe Download PDFInfo
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- CN103033566A CN103033566A CN2012105893225A CN201210589322A CN103033566A CN 103033566 A CN103033566 A CN 103033566A CN 2012105893225 A CN2012105893225 A CN 2012105893225A CN 201210589322 A CN201210589322 A CN 201210589322A CN 103033566 A CN103033566 A CN 103033566A
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Abstract
The invention discloses an automatic detecting device for a spread angle of an ultrasonic probe. The automatic detecting device comprises an ultrasonic array arc probe, a probe clamping frame, a slideway, a mechanical transmission device, and a semicylindrical ultrasonic calibration block, wherein the ultrasonic probe is moved by the mechanical transmission device quickly and accurately; the ultrasonic array arc probe is used to receive ultrasound; the two side ends of the spread angle are determined quickly; the size of the spread angle is worked out according to the geometrical size relationships of piezoelectric ceramic chips in the ultrasonic array arc probe; a detecting error is reduced greatly; the working efficiency is improved; and the automatic detecting device is applicable to detection of the spread angles of various ultrasonic normal probes and ultrasonic angular probes.
Description
Technical field
The present invention relates to a kind of ultrasonic probe performance testing device, particularly a kind of ultrasonic probe spread angle apparatus for automatically measuring.
Background technology
The spread angle method of testing of conventional ultrasound normal probe and angle probe is, at first, moved by hand ultrasonic probe on the horizontal scanning face of the ultrasonic calibration block of semicylinder, observed echo is big or small simultaneously, when echo is maximum, keep probe motionless, the present position of popping one's head in this moment is the center of the semicircle cambered surface of the ultrasonic calibration block of semicylinder; Then, moved by hand ultrasound wave receiving transducer on the semicircle cambered surface of the ultrasonic calibration block of semicylinder, the ultrasound wave main beam spreads to both sides, take receive maximum crest as starting point to two side shifting ultrasound wave receiving transducers, relative sensitivity decline 3dB as critical angle, after searching out the main beam diffusion arm of angle end on the semicircle cambered surface, estimate to draw the size of spread angle by the angle index on the semicircle cambered surface.The method detection efficiency is lower, it is slower that one side moved by hand ultrasonic probe is sought maximum echo crest location speed, and have certain error during the mounting ultrasonic probe, moved by hand ultrasound wave receiving transducer efficient is lower on the other hand, and there is error in artificial judgment.
Summary of the invention
The object of the invention is to, in order to improve the determination efficiency of ultrasonic probe spread angle, developed a kind of ultrasonic probe spread angle apparatus for automatically measuring, adopt mechanical driving device to control mobile ultrasonic probe, adopt simultaneously the ultrasonic array arcuate probe to receive ultrasonic echo, fast detecting goes out the distance between two limit ends of ultrasound wave main beam spread angle, accurately calculates the spread angle size.
The technical solution adopted for the present invention to solve the technical problems is: a kind of ultrasonic probe spread angle apparatus for automatically measuring comprises ultrasonic array arcuate probe, probe holding frame, slide rail, mechanical driving device, the ultrasonic calibration block of semicylinder.Described probe holding frame is fixed on the slide rail; Described slide rail is fixed on the mechanical driving device, and slide rail is parallel to the horizontal scanning face in the ultrasonic calibration block of semicylinder; Described mechanical driving device and probe holding frame mechanical connection, the movement of mechanical driving device control probe holding frame.Described ultrasonic array arcuate probe is comprised of a plurality of piezoelectric ceramic wafers, and a plurality of piezoelectric ceramic wafer close-packed arrays are distributed on the interior circular arc test surface of ultrasonic array arcuate probe; Radius, the width of the semicircle cambered surface in the radius of the interior circular arc test surface of ultrasonic array arcuate probe, width and the ultrasonic calibration block of semicylinder are identical, the arc length of the interior circular arc test surface of ultrasonic array arcuate probe and the quantity of piezoelectric ceramic wafer require to determine according to ultrasonic detection precision, when the arc length quantity larger, piezoelectric ceramic wafer of interior circular arc test surface was more, accuracy of detection was higher.Described probe holding frame adopts the solid nonmetallic materials, and for example rubberite or duroplasts have the clamping space regulator in the probe holding frame.Described slide rail adopts high-abrasive material, for example chromium bearing steel.
In the mensuration process, ultrasonic probe is coupling on the horizontal scanning face of the ultrasonic calibration block of semicylinder, and the probe holding frame is clamped ultrasonic probe, and ultrasonic probe is connected on the single channel probe interface of channel ultrasonic detector; Mechanical driving device is connected to the I/O interface of channel ultrasonic detector; The ultrasonic array arcuate probe is connected to the hyperchannel probe interface of channel ultrasonic detector.Open the channel ultrasonic detector, ultrasound measuring instrument excitation ultrasonic probe, send enabling signal to mechanical driving device simultaneously, mechanical driving device control probe holding frame is mobile at slide rail, ultrasonic probe moves along the horizontal scanning face of the ultrasonic calibration block of semicylinder, when ultrasonic probe receives maximum echo constantly, the channel ultrasonic detector is to the mechanical driving device transmitted signal, mechanical driving device is accurately controlled ultrasonic probe and is moved to position when receiving maximum echo, then stops mobile.Incident angle according to known tested ultrasonic probe, the ultrasonic array arcuate probe is coupled to respective angles position on the ultrasonic calibration block semicircle of the semicylinder cambered surface, at this moment, the ultrasound wave main beam of ultrasonic probe emission will be received by the ultrasonic array arcuate probe, the signal that each piezoelectric ceramic wafer in the ultrasonic array arcuate probe receives transfers in the channel ultrasonic detector, and shows output in each corresponding with it sense channel signal display box.At this moment, a piezoelectric ceramic wafer in the ultrasonic array arcuate probe will receive maximum ultrasonic signal, on its both sides, to respectively there be a piezoelectric ceramic wafer to receive the ultrasonic signal that is lower than maximum ultrasonic signal 3dB, can accurately calculates the spread angle size according to the known physical dimension relation of these two piezoelectric ceramic wafers.
The invention has the beneficial effects as follows, a kind of ultrasonic probe spread angle apparatus for automatically measuring, by the quick accurate mobile ultrasonic probe of mechanical driving device, utilize the ultrasonic array arcuate probe to receive ultrasound wave, determine fast two limit ends of spread angle, calculate the spread angle size according to the size geometric relationship of piezoelectric ceramic wafer in the ultrasonic array arcuate probe, greatly reduce and detect error, improve work efficiency, be applicable to the spread angle mensuration work of various straight beam method heads and angle probe.
The invention will be further described below in conjunction with embodiment.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the determinator floor map of the embodiment of the invention.
Fig. 2 is the determinator schematic three dimensional views of the embodiment of the invention.
Fig. 3 is the ultrasonic array arcuate probe synoptic diagram in the determinator of the embodiment of the invention.
Fig. 4 is that the straight beam method head of the embodiment of the invention is measured the process synoptic diagram.
Fig. 5 is that the ultrasound wave angle probe of the embodiment of the invention is measured the process synoptic diagram.
Among the figure, 1. ultrasonic array arcuate probe, 2. probe holding frame, 3. slide rail, 4. mechanical driving device, the 5. ultrasonic calibration block of semicylinder, 6. straight beam method head, 7. ultrasound wave angle probe, 8. ultrasound wave main beam, 10. piezoelectric ceramic wafer, 20. clamping space regulators, 10
Max. receive the piezoelectric ceramic wafer of maximum ultrasonic signal, 10
-3dB. receive the piezoelectric ceramic wafer of the ultrasonic signal that is lower than maximum ultrasonic signal 3dB,
θ. spread angle.
Embodiment
In the embodiment shown in Fig. 1,2,3, a kind of ultrasonic probe spread angle apparatus for automatically measuring comprises ultrasonic array arcuate probe 1, probe holding frame 2, slide rail 3, mechanical driving device 4, the ultrasonic calibration block 5 of semicylinder.Described probe holding frame 2 is fixed on the slide rail 3; Described slide rail 3 is fixed on the mechanical driving device 4, and slide rail 3 is parallel to the horizontal scanning face in the ultrasonic calibration block 5 of semicylinder; Described mechanical driving device 4 and probe holding frame 2 mechanical connections, the movement of mechanical driving device 4 control probe holding frames 2.Described ultrasonic array arcuate probe 1 is comprised of a plurality of piezoelectric ceramic wafers 10, and a plurality of piezoelectric ceramic wafer 10 close-packed arrays are distributed on the interior circular arc test surface of ultrasonic array arcuate probe 1; Radius, the width of the semicircle cambered surface in the radius of the interior circular arc test surface of ultrasonic array arcuate probe 1, width and the ultrasonic calibration block 5 of semicylinder are identical, the arc length of the interior circular arc test surface of ultrasonic array arcuate probe 1 and the quantity of piezoelectric ceramic wafer 10 require to determine according to ultrasonic detection precision, when the arc length quantity larger, piezoelectric ceramic wafer 10 of interior circular arc test surface was more, accuracy of detection was higher.Described probe holding frame 2 adopts the solid nonmetallic materials, and for example rubberite or duroplasts have clamping space regulator 20 in the probe holding frame 2.Described cunning 3 rails adopt high-abrasive material, for example chromium bearing steel.
In straight beam method head mensuration process embodiment illustrated in fig. 4, straight beam method head 6 is coupling on the horizontal scanning face of the ultrasonic calibration block 5 of semicylinder, probe holding frame 2 is clamped straight beam method head 6, and straight beam method head 6 is connected on the single channel probe interface of channel ultrasonic detector; Mechanical driving device 4 is connected to the I/O interface of channel ultrasonic detector; Ultrasonic array arcuate probe 1 is connected to the hyperchannel probe interface of channel ultrasonic detector.Open the channel ultrasonic detector, ultrasound measuring instrument excitation straight beam method head 6, send enabling signal to mechanical driving device 4 simultaneously, mechanical driving device 4 control probe holding frames 2 are mobile at slide rail 3, straight beam method head 6 moves along the horizontal scanning face of the ultrasonic calibration block 5 of semicylinder, when straight beam method head 6 receives maximum echo constantly, the channel ultrasonic detector is to mechanical driving device 4 transmitted signals, mechanical driving device 4 is accurately controlled the position that straight beam method head 6 moves to when receiving maximum echo, then stops mobile.The incident angle of straight beam method head 6 is vertical with the plane of incidence, ultrasonic array arcuate probe 1 is coupled to place, the ultrasonic calibration block of semicylinder 5 semicircle cambered surface centre positions, at this moment, the ultrasound wave main beam 8 of straight beam method head 6 emissions will be received by ultrasonic array arcuate probe 1, the signal that each piezoelectric ceramic wafer 10 in the ultrasonic array arcuate probe 1 receives transfers in the channel ultrasonic detector, and shows output in each corresponding with it sense channel signal display box.At this moment, a piezoelectric ceramic wafer 10 in the ultrasonic array arcuate probe 1
MaxTo receive maximum ultrasonic signal, on its both sides, a piezoelectric ceramic wafer 10 will be arranged respectively
-3dBReceive the ultrasonic signal that is lower than maximum ultrasonic signal 3dB, according to these two piezoelectric ceramic wafers 10
-3dBKnown physical dimension relation can accurately calculate spread angle
θSize.
In ultrasound wave angle probe mensuration process embodiment illustrated in fig. 5, measure the process difference with straight beam method head shown in Figure 4 and be, measuring incident angle is the spread angle of the ultrasound wave angle probe 7 of 45 degree
θBecause the incident angle of tested ultrasound wave angle probe 7 is 45 degree, so ultrasonic array arcuate probe 1 is coupled to miter angle scale position on the ultrasonic calibration block 5 semicircle cambered surfaces of semicylinder, at this moment, the ultrasound wave main beam 8 of ultrasound wave angle probe 7 emissions will be received by ultrasonic array arcuate probe 1, the signal that each piezoelectric ceramic wafer 10 in the ultrasonic array arcuate probe 1 receives transfers in the channel ultrasonic detector, and shows output in each corresponding with it sense channel signal display box.At this moment, a piezoelectric ceramic wafer 10 in the ultrasonic array arcuate probe 1
MaxTo receive maximum ultrasonic signal, on its both sides, a piezoelectric ceramic wafer 10 will be arranged respectively
-3dBReceive the ultrasonic signal that is lower than maximum ultrasonic signal 3dB, according to these two piezoelectric ceramic wafers 10
-3dBKnown physical dimension relation can accurately calculate spread angle
θSize.
Above-described embodiment only is used for further specifying a kind of ultrasonic probe spread angle apparatus for automatically measuring of the present invention, but the present invention is not limited to embodiment, should be appreciated that in not departing from the scope of the present invention, can make multiple combination and change to above-described embodiment.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a ultrasonic probe spread angle apparatus for automatically measuring comprises ultrasonic array arcuate probe, probe holding frame, slide rail, mechanical driving device, the ultrasonic calibration block of semicylinder, and it is characterized in that: described probe holding frame is fixed on the slide rail; Described slide rail is fixed on the mechanical driving device, and slide rail is parallel to the horizontal scanning face in the ultrasonic calibration block of semicylinder; Described mechanical driving device and probe holding frame mechanical connection.
2. a kind of ultrasonic probe spread angle apparatus for automatically measuring according to claim 1, it is characterized in that: described ultrasonic array arcuate probe is comprised of a plurality of piezoelectric ceramic wafers, and a plurality of piezoelectric ceramic wafer close-packed arrays are distributed on the interior circular arc test surface of ultrasonic array arcuate probe; Radius, the width of the semicircle cambered surface in the radius of the interior circular arc test surface of ultrasonic array arcuate probe, width and the ultrasonic calibration block of semicylinder are identical.
3. a kind of ultrasonic probe spread angle apparatus for automatically measuring according to claim 1 is characterized in that: described probe holding frame adopts the solid nonmetallic materials, in the probe holding frame clamping space regulator is arranged.
4. a kind of ultrasonic probe spread angle apparatus for automatically measuring according to claim 1 is characterized in that: described slide rail employing high-abrasive material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210589322.5A CN103033566B (en) | 2012-12-31 | 2012-12-31 | Automatic detecting device for spread angle of ultrasonic probe |
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| CN201210589322.5A CN103033566B (en) | 2012-12-31 | 2012-12-31 | Automatic detecting device for spread angle of ultrasonic probe |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297351A (en) * | 2014-10-29 | 2015-01-21 | 中广核检测技术有限公司 | Test block and method for measuring refraction angle of ultrasonic angle probe |
| CN105259259A (en) * | 2015-11-25 | 2016-01-20 | 华北电力科学研究院有限责任公司 | TOFD-12dB spread angle measuring tool and set thereof |
| CN108180934A (en) * | 2017-11-30 | 2018-06-19 | 彩虹（合肥）液晶玻璃有限公司 | The detection device and detection method of a kind of fibre-optical sensing device |
| CN109632969A (en) * | 2019-02-22 | 2019-04-16 | 国电锅炉压力容器检验有限公司 | A kind of test device and test method of longitudinal wave probe acoustic beam angle of flare |
| CN111413413A (en) * | 2019-01-04 | 2020-07-14 | 国电锅炉压力容器检验有限公司 | Test block for measuring refraction angle of ultrasonic probe |
| CN111413412A (en) * | 2019-01-04 | 2020-07-14 | 国电锅炉压力容器检验有限公司 | Method for measuring refraction angle of ultrasonic probe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104297351A (en) * | 2014-10-29 | 2015-01-21 | 中广核检测技术有限公司 | Test block and method for measuring refraction angle of ultrasonic angle probe |
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| CN105259259B (en) * | 2015-11-25 | 2018-01-19 | 华北电力科学研究院有限责任公司 | A kind of TOFD 12dB diffusion angular measurement frocks and its external member |
| CN108180934A (en) * | 2017-11-30 | 2018-06-19 | 彩虹（合肥）液晶玻璃有限公司 | The detection device and detection method of a kind of fibre-optical sensing device |
| CN111413413A (en) * | 2019-01-04 | 2020-07-14 | 国电锅炉压力容器检验有限公司 | Test block for measuring refraction angle of ultrasonic probe |
| CN111413412A (en) * | 2019-01-04 | 2020-07-14 | 国电锅炉压力容器检验有限公司 | Method for measuring refraction angle of ultrasonic probe |
| CN109632969A (en) * | 2019-02-22 | 2019-04-16 | 国电锅炉压力容器检验有限公司 | A kind of test device and test method of longitudinal wave probe acoustic beam angle of flare |
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| CN103033566B (en) | 2015-01-21 |
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