CN103033566B - 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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- CN103033566B CN103033566B CN201210589322.5A CN201210589322A CN103033566B CN 103033566 B CN103033566 B CN 103033566B CN 201210589322 A CN201210589322 A CN 201210589322A CN 103033566 B CN103033566 B CN 103033566B
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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, first, moved by hand ultrasonic probe on the horizontal scanning face of the ultrasonic calibration block of semicylinder, observed echo size simultaneously, when echo is maximum, keep probe motionless, present position of now popping one's head in is the center of the semicircle cambered surface of the ultrasonic calibration block of semicylinder; Then, moved by hand ultrasound wave receiving transducer in the semicircle cambered surface of the ultrasonic calibration block of semicylinder, ultrasound beam spreads to both sides, ultrasound wave receiving transducer is moved to both sides to receive maximum crest for starting point, using relative sensitivity decline 3dB as critical angle, after searching out the main beam diffusion arm of angle end in semicircle cambered surface, estimate by the angle index in semicircle cambered surface the size drawing spread angle.The method detection efficiency is lower, it is slower that one side moved by hand ultrasonic probe finds maximum echo crest location speed, and there is certain error during mounting ultrasonic probe, moved by hand ultrasound wave receiving transducer efficiency is lower on the other hand, and artificial judgment exists error.
Summary of the invention
The object of the invention is to, in order to improve the determination efficiency of ultrasonic probe spread angle, have developed a kind of ultrasonic probe spread angle apparatus for automatically measuring, mechanical driving device is adopted to control mobile ultrasonic probe, adopt ultrasonic array arcuate probe to receive ultrasonic echo simultaneously, detect the distance between ultrasound beam spread angle two limit ends fast, accurately calculate 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 slide rail; Described slide rail is fixed on mechanical driving device, and slide rail is parallel to the horizontal scanning face in the ultrasonic calibration block of semicylinder; Described mechanical driving device is mechanically connected with probe holding frame, and mechanical driving device controls the movement of probe holding frame.Described ultrasonic array arcuate probe is made up of multiple piezoelectric ceramic wafer, and multiple piezoelectric ceramic wafer close-packed arrays is distributed on the inner circle arc test surface of ultrasonic array arcuate probe; Radius, the width of the radius of the inner circle arc test surface of ultrasonic array arcuate probe, width and the semicircle cambered surface in the ultrasonic calibration block of semicylinder are identical, the arc length of inner circle arc test surface and the quantity of piezoelectric ceramic wafer of ultrasonic array arcuate probe require to determine according to ultrasonic detection precision, when the arc length of Inner arc test surface is larger, the quantity of piezoelectric ceramic wafer is more, accuracy of detection is higher.Described probe holding frame adopts solid non-metallic materials, such as rubberite or duroplasts, has clamping space regulator in probe holding frame.Described slide rail adopts high-abrasive material, such as chromium bearing steel.
In mensuration process, ultrasonic probe is coupling on the horizontal scanning face of the ultrasonic calibration block of semicylinder, and probe holding frame clamps 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; Ultrasonic array arcuate probe is connected to the hyperchannel probe interface of channel ultrasonic detector.Open channel ultrasonic detector, ultrasound measuring instrument excitation ultrasonic probe, send enabling signal to mechanical driving device simultaneously, mechanical driving device controls probe holding frame and moves on slide rail, ultrasonic probe moves along the horizontal scanning face of the ultrasonic calibration block of semicylinder, when ultrasonic probe receives the maximum echo moment, channel ultrasonic detector sends signal to mechanical driving device, mechanical driving device accurately controls ultrasonic probe and moves to position when receiving maximum echo, then stops mobile.According to the incident angle of known tested ultrasonic probe, ultrasonic array arcuate probe is coupled to the respective angles position in semicylinder ultrasonic calibration block semicircle cambered surface, now, the ultrasound beam that ultrasonic probe is launched will be received by ultrasonic array arcuate probe, the Signal transmissions that each piezoelectric ceramic wafer in ultrasonic array arcuate probe receives in channel ultrasonic detector, and in each corresponding with it sense channel Signal aspects frame display translation.Now, a piezoelectric ceramic wafer in ultrasonic array arcuate probe will receive maximum ultrasonic signal, on its both sides, to respectively have a piezoelectric ceramic wafer to receive ultrasonic signal lower than maximum ultrasonic signal 3dB, the known physical dimension relation according to these two piezoelectric ceramic wafers can accurately calculate spread angle size.
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, ultrasonic array arcuate probe is utilized to receive ultrasound wave, determine two limit ends of spread angle fast, calculate spread angle size according to the size geometric relationship of piezoelectric ceramic wafer in ultrasonic array arcuate probe, greatly reduce metrical error, improve work efficiency, be applicable to the spread angle mensuration work of various straight beam method head and angle probe.
Below in conjunction with embodiment, the invention will be further described.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the determinator floor map of the embodiment of the present invention.
Fig. 2 is the determinator schematic three dimensional views of the embodiment of the present invention.
Fig. 3 is the ultrasonic array arcuate probe schematic diagram in the determinator of the embodiment of the present invention.
Fig. 4 is that the straight beam method head of the embodiment of the present invention measures process schematic.
Fig. 5 is that the ultrasound wave angle probe of the embodiment of the present invention measures process schematic.
In figure, 1. ultrasonic array arcuate probe, 2. pop one's head in 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 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 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 slide rail 3; Described slide rail 3 is fixed on mechanical driving device 4, and slide rail 3 is parallel to the horizontal scanning face in the ultrasonic calibration block of semicylinder 5; Described mechanical driving device 4 is mechanically connected with probe holding frame 2, and mechanical driving device 4 controls the movement of probe holding frame 2.Described ultrasonic array arcuate probe 1 is made up of multiple piezoelectric ceramic wafer 10, and multiple piezoelectric ceramic wafer 10 close-packed arrays is distributed on the inner circle arc test surface of ultrasonic array arcuate probe 1; Radius, the width of the radius of the inner circle arc test surface of ultrasonic array arcuate probe 1, width and the semicircle cambered surface in the ultrasonic calibration block of semicylinder 5 are identical, the arc length of inner circle arc test surface and the quantity of piezoelectric ceramic wafer 10 of ultrasonic array arcuate probe 1 require to determine according to ultrasonic detection precision, when the arc length of Inner arc test surface is larger, the quantity of piezoelectric ceramic wafer 10 is more, accuracy of detection is higher.Described probe holding frame 2 adopts solid non-metallic materials, such as rubberite or duroplasts, has clamping space regulator 20 in probe holding frame 2.Described cunning 3 rail adopts high-abrasive material, such as 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 of semicylinder 5, probe holding frame 2 clamps 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 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 controls probe holding frame 2 and moves on slide rail 3, straight beam method head 6 moves along the horizontal scanning face of the ultrasonic calibration block of semicylinder 5, when straight beam method head 6 receives the maximum echo moment, channel ultrasonic detector sends signal to mechanical driving device 4, mechanical driving device 4 accurately control straight beam method head 6 moves to position 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 semicylinder ultrasonic calibration block 5 semicircle cambered surface middle position, now, the ultrasound beam 8 that straight beam method head 6 is launched will be received by ultrasonic array arcuate probe 1, the Signal transmissions that each piezoelectric ceramic wafer 10 in ultrasonic array arcuate probe 1 receives in channel ultrasonic detector, and in each corresponding with it sense channel Signal aspects frame display translation.Now, a piezoelectric ceramic wafer 10 in ultrasonic array arcuate probe 1
maxmaximum ultrasonic signal will be received, on its both sides, will respectively have a piezoelectric ceramic wafer 10
-3dBreceive the ultrasonic signal 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 process difference with the straight beam method head shown in Fig. 4 and be, measure the spread angle that incident angle is the ultrasound wave angle probe 7 of 45 degree
θincident angle because of tested ultrasound wave angle probe 7 is 45 degree, so ultrasonic array arcuate probe 1 to be coupled to the miter angle graduation position place in semicylinder ultrasonic calibration block 5 semicircle cambered surface, now, the ultrasound beam 8 that ultrasound wave angle probe 7 is launched will be received by ultrasonic array arcuate probe 1, the Signal transmissions that each piezoelectric ceramic wafer 10 in ultrasonic array arcuate probe 1 receives in channel ultrasonic detector, and in each corresponding with it sense channel Signal aspects frame display translation.Now, a piezoelectric ceramic wafer 10 in ultrasonic array arcuate probe 1
maxmaximum ultrasonic signal will be received, on its both sides, will respectively have a piezoelectric ceramic wafer 10
-3dBreceive the ultrasonic signal 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 is only used for further illustrating 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 without departing from the scope of the present invention, multiple combination and change can be made to above-described embodiment.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
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, it is characterized in that: described probe holding frame is fixed on slide rail; Described slide rail is fixed on mechanical driving device, and slide rail is parallel to the horizontal scanning face in the ultrasonic calibration block of semicylinder; Described mechanical driving device be mechanically connected with probe holding frame, and the described mechanical driving device holding frame that controls to pop one's head in moves on slide rail, and mechanical driving device accurately controls ultrasonic probe and moves to position when ultrasonic probe receives maximum echo; Described ultrasonic array arcuate probe is made up of multiple piezoelectric ceramic wafer, multiple piezoelectric ceramic wafer close-packed arrays is distributed on the inner circle arc test surface of ultrasonic array arcuate probe, a piezoelectric ceramic wafer in ultrasonic array arcuate probe receives maximum ultrasonic signal, receives ultrasonic signal lower than maximum ultrasonic signal 3dB on its both sides by respectively there being a piezoelectric ceramic wafer; Radius, the width of the radius of the inner circle arc test surface of ultrasonic array arcuate probe, width and the semicircle cambered surface in the ultrasonic calibration block of semicylinder are identical.
2. a kind of ultrasonic probe spread angle apparatus for automatically measuring according to claim 1, is characterized in that: described probe holding frame adopts solid non-metallic materials, has clamping space regulator in probe holding frame.
3. a kind of ultrasonic probe spread angle apparatus for automatically measuring according to claim 1, is characterized in that: described slide rail adopts high-abrasive material.
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| CN104297351B (en) * | 2014-10-29 | 2016-08-17 | 中广核检测技术有限公司 | A kind of test block for measuring ultrasonic wave angle probe refraction angle and measuring method thereof |
| 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 |
| CN108180934B (en) * | 2017-11-30 | 2020-10-16 | 彩虹（合肥）液晶玻璃有限公司 | Detection device and detection method of optical fiber sensing device |
| CN111413412B (en) * | 2019-01-04 | 2023-06-27 | 国电锅炉压力容器检验有限公司 | Method for measuring refraction angle of ultrasonic probe |
| CN111413413B (en) * | 2019-01-04 | 2023-06-27 | 国电锅炉压力容器检验有限公司 | Test block 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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| GB2033579B (en) * | 1978-10-05 | 1983-05-11 | Babcock Power Ltd | Ultrasonic probes |
| JP2007192649A (en) * | 2006-01-19 | 2007-08-02 | Toshiba Corp | Three-dimensional ultrasonic inspecting apparatus |
| JP4700015B2 (en) * | 2007-01-23 | 2011-06-15 | 株式会社日立エンジニアリング・アンド・サービス | Ultrasonic inspection method and ultrasonic inspection apparatus |
| CN101539542B (en) * | 2008-03-21 | 2011-01-19 | 宝山钢铁股份有限公司 | Performance test device for water immersion focusing probe and test method thereof |
| JP5104833B2 (en) * | 2009-09-09 | 2012-12-19 | 株式会社豊田中央研究所 | Structure internal state measurement system and structure internal state measurement method |
| CN202471659U (en) * | 2011-12-31 | 2012-10-03 | 上海航天精密机械研究所 | Automatic scanning device for ultrasonic phased array inspection of aluminum plate in friction stir welding |
| CN102759577B (en) * | 2012-07-25 | 2015-02-25 | 中国计量学院 | Phased ultrasonic automatic detecting and positioning system for trunnion ring weld of steel ladle |
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