Method and device for obtaining performance parameters of vibration flaw detector
A flaw detector and parameter technology, which is applied in the direction of instruments, material analysis, and solid analysis using sound waves/ultrasonic waves/infrasonic waves, etc., can solve the problems of lack of vibration flaw detector performance testing methods, and the difficulty for testers to understand the testing performance of vibration flaw detectors.
Active Publication Date: 2021-11-09
GUANGZHOU GRG METROLOGY & TEST CO LTD +1
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[0005] Based on this, it is necessary to provide a vibration flaw detector performance parameter acquisition method and device for the lack of performance test methods for vibration flaw detectors in the application process of traditional vibration flaw detectors, and it is difficult for testers to understand the test performance problems of vibration flaw detectors
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[0051] In order to better understand the purpose, technical solution and technical effect of the present invention, the present invention will be further explained below in conjunction with the accompanying drawings and embodiments. At the same time, it is stated that the embodiments described below are only used to explain the present invention, and are not intended to limit the present invention
[0052] The embodiment of the present invention provides a method for obtaining performance parameters of a vibration flaw detector:
[0053] figure 1 It is a flowchart of a method for obtaining performance parameters of a vibration flaw detector in an embodiment, such as figure 1 As shown, a method for obtaining performance parameters of a vibration flaw detector in an embodiment includes steps S100 to S103:
[0054] S100, each structural unit is measured several times by the vibration flaw detector to obtain each spectral density;
[0055] figure 2 It is a schematic diagram o...
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The invention relates to a method and device for obtaining performance parameters of a vibration flaw detector. The vibration flaw detector to be calibrated measures each structural unit several times respectively to obtain each spectral density, so as to obtain each peak frequency according to each spectral density, and at the same time combine the values of each structural unit The first-order natural frequency, according to each peak frequency and the first-order natural frequency of the corresponding structural unit, obtains the performance parameters of the vibration flaw detector to be tested. Based on this, by measuring each structural unit, the performance parameters that can be used to measure the performance of the calibrated vibration flaw detector are obtained, so that testers can judge whether the calibrated vibration flaw detector can work normally, and intuitively understand the test performance of the calibrated vibration flaw detector.
Description
technical field [0001] The invention relates to the technical field of equipment testing, in particular to a method and device for obtaining performance parameters of a vibration flaw detector. Background technique [0002] For a long time, the fracture of high-voltage porcelain post insulators in the power grid has plagued the safe operation of the power grid. Especially in recent years, frequent accidents of porcelain post insulators breaking during operation have seriously affected the safe and stable operation of the power grid. The practice of high-voltage circuit breaker operation has proved that the important part that affects its working reliability is the post insulator. After a lot of operation practice, it has been proved that 60%~70% of the failure rate of circuit breaker switches is caused by the damage of insulators. Therefore, in order to ensure the safe and stable operation of electrical equipment, it is very necessary to conduct comprehensive inspections on ...
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IPC IPC(8): G01N29/04
CPCG01N29/04G01N2291/023G01N2291/0289
Inventor 赵莹龙阳
Owner GUANGZHOU GRG METROLOGY & TEST CO LTD