Ultrasonic detecting method for electric power pylon steel angle
A technology of ultrasonic guided wave and power tower, which is applied in the direction of using sound wave/ultrasonic wave/infrasonic wave to analyze solids, etc., which can solve the problems of power tower collapse accidents, economic losses, corrosion, etc. Simple operation effect
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[0028] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0029] An ultrasonic guided wave detection method for the angle steel of a power tower mainly uses an ultrasonic flaw detector and an ultrasonic probe to detect the angle steel. The specific steps are as follows:
[0030] 1. Select an ultrasonic flaw detector: the excitation signal generated by it is a single-tone signal, preferably a wide-pulse narrow-band excitation signal, with a sensitivity margin ≥ 110dB, a sampling frequency ≥ 60MHz, a recordable waveform ≥ 100, and a display refresh frequency ≥ 60Hz , the sound velocity range is 1000-7000m / s; the ultrasonic flaw detector usually has a recordable function and a communication interface to exchange data and waveforms with the computer, and can also be connected to a printer to directly output the test results.
[0031] 2. Select the ultrasonic guided wave probe: the detection frequency is 0...
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