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Performance test device for water immersion focusing probe and test method thereof

A testing device, water immersion focusing technology, applied in measurement devices, material analysis using sonic/ultrasonic/infrasonic waves, instruments, etc., can solve the problems of inability to guarantee the qualified performance of the supplied probes, lack of supervision by the probe manufacturer, and high hardware requirements. , to achieve the effect of improving flaw detection efficiency and quantitative accuracy, improving sensitivity uniformity, and improving coupling conditions

Active Publication Date: 2009-09-23
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, there are many problems in the actual operation process: for example, during the field use of the probe, the performance of the probe is quite different, and there is a big difference from the performance index on the probe warranty provided by the manufacturer; Supervised by other parties, it is impossible to guarantee 100% performance of its supply probes in use
[0015] In the prior art, the performance testing of ultrasonic probes is mainly carried out by probe manufacturers or research institutes. To test the performance of ultrasonic probes, it needs to be realized with the help of special laboratory equipment (sound field testing instruments and devices). The testing process has strict requirements on hardware. Very high, this kind of test equipment and method is difficult for steel production enterprises using probes

Method used

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  • Performance test device for water immersion focusing probe and test method thereof
  • Performance test device for water immersion focusing probe and test method thereof
  • Performance test device for water immersion focusing probe and test method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] The water immersion focusing probe performance test device of the present invention is obtained, the test device includes a test device frame body and an ultrasonic flaw detector placed in a water tank, and the test device also includes: movably arranged on the test device frame body 1. A probe mounting seat, a probe clamping device for fixing the probe, a three-dimensional guiding adjustment device that can be movably arranged on the frame body of the test device, and can make the probe move in three dimensions along the X-axis, Y-axis, and Z-axis. Installed on the X-axis, Y-axis, and Z-axis respectively, corresponding to the three-dimensional movement of the probe on the X-axis, Y-axis, and Z-axis, the vernier calipers used for real-time measurement and determination of the position and position change of the ultrasonic probe are set on the test device On the frame body, a reference reflection seat corresponding to the above-mentioned probe fixing seat, and a steel bal...

Embodiment 2

[0093] Focus probe focal length test

[0094] When testing the focal length of the focusing probe, the instrument suppression is set to 0, the compensation is turned off, the gain knob is set above 80% of the adjustment amount, and the attenuator has a certain adjustable amount, generally 30-40dB. Then turn (13) the X-axis adjuster of the probe in the accompanying drawings, so that the probe moves along the direction of the X-axis (there is a reference reflection seat below) along with the three-dimensional guide. Move the probe to the top of the reference reflection seat (3), find the highest point of the reflected echo signal, and adjust the attenuator to make the echo signal reach 80% of the height displayed on the oscilloscope.

[0095] Turn the probe angle adjuster (5) with an angle indication in the X direction to observe whether the sound beam of the probe is incident vertically. If the sound beam of the probe is incident vertically at this time, then when the probe ang...

Embodiment 3

[0101] Probe Beam Width Test

[0102] When testing the beam width of the probe, set the instrument suppression to 0, turn off the compensation, set the gain knob to more than 80% of the adjustment amount, and leave a certain adjustable amount for the attenuator, such as 40dB.

[0103] Then turn the X-axis adjuster of the probe (13) in the attached drawing to make the probe move along the X-axis direction with the three-dimensional guide device, move the probe to the top of the reference reflection seat (3), find the highest point of the reflected echo signal, and adjust the attenuation Make the echo signal reach 80% of the height displayed on the oscilloscope.

[0104] Turn the probe angle adjuster (5) with angle indication in the X direction to observe whether the sound beam of the probe is incident vertically. If the sound beam of the probe is incident vertically at this time, adjust (5) and the reflected signal will drop from 80% of the height. If The probe does not reach ...

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Abstract

The invention relates to a performance test device for a water immersion focusing probe and a test method thereof. A steel ball is placed on a reference reflection seat of the performance test device placed in a water tank, the corresponding upside of the steel ball is provided and aligned with a probe to be tested, the probe to be tested generates ultrasonic signals to the steel ball through an ultrasonic gauge, and the performance difference of the probe is tested through the variation of reflection signals. A three-dimensional guide adjusting device is adjusted to test the position and variable quantity of the probe in real time so that reflection echo signals of the probe on the steel ball reaches maximum. Effective reflected wave is received by the probe and displayed on a display screen of the ultrasonic gauge in a form of wave height; scale numerical values on X axis, Y axis and Z axis of a graduated scale are recorded respectively; and various performance indexes of the probe are determined by observing the variation of the wave height. The performance test device for the water immersion focusing probe and the test method thereof are simple and practical, and can test the indexes such as focus, sound width, focus diameter, sound offset angle, sensitivity surplus, sensitivity deflection of a multi-chip probe and the like without depending on special laboratory equipment.

Description

technical field [0001] The invention relates to the technical field of non-destructive flaw detection of steel pipes, in particular, the invention relates to a performance test device and a test method for a water immersion focusing probe. Background technique [0002] At present, domestic steel pipe factories produce more than millions of tons of various types of steel pipes, of which more than 80% of steel pipes such as oil well pipes and high-pressure boiler pipes need to pass ultrasonic flaw detection. The flaw detection unit used as the unit for ultrasonic flaw detection of seamless steel pipes in the production line of the steel pipe factory mainly adopts the mode of probe rotation and steel pipe linear conveyance. Among them, in ultrasonic flaw detection, the transmission and reception of ultrasonic waves is realized through the probe. Ultrasonic probe, also known as ultrasonic transducer, is a device that realizes the mutual conversion of electric energy and sound e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/30
Inventor 陈杰周长忠
Owner BAOSHAN IRON & STEEL CO LTD
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