System and method for positioning fatigue crack in plate like structure based on ipsilateral ultrasonic mixing wavelet
A technology of fatigue cracks and frequency mixing, which is applied in the direction of analyzing solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and processing detection response signals. It can solve problems such as undiscovered patent documents and achieve Good for reference, improve utilization rate, and reduce waste
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[0030] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.
[0031] A system for locating fatigue cracks in plate structures based on the same-side ultrasonic mixing wavelet. 14, a duplexer 15, a high-pass filter 6 and an oscilloscope 9, the computer is connected to the nonlinear ultrasonic instrument, the nonlinear ultrasonic instrument is provided with two radio frequency output terminals and one radio frequency input terminal 12, and the two radio frequency output terminals include the first The radio frequency output terminal 10 and the second radio frequency output terminal 11, the first radio frequency output terminal and the second radio frequency output terminal are respectively connected with a left side attenuator 1 and a right side attenuator 2, and the left side attenuator and the right sid...
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