Nonlinear ultrasonic detection method and detection system suitable for concrete carbonization
A technology of nonlinear ultrasound and detection methods, applied in the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and measurement devices, etc. Weak effect and other issues, to achieve high-precision results
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Embodiment 1
[0052] A non-linear ultrasonic detection method applicable to concrete carbonation, said detection method comprising the following steps:
[0053] Step 1, using an arbitrary waveform generator to generate a sinusoidal electrical signal and outputting it to a broadband power amplifier, the electrical signal is amplified by the broadband power amplifier, and the amplified electrical signal is sent to the test piece;
[0054] Step 2, the PZT piezoelectric ceramic chip at the transmitting end of the test piece sends out an ultrasonic signal after the inverse piezoelectric effect, and the PZT piezoelectric ceramic chip at the receiving end of the test piece receives the ultrasonic signal and converts it into an electrical signal ;
[0055] Step 3, the electrical signal is transmitted to the oscilloscope and the electrical signal parameters are displayed, the electrical signal parameters are collected, and then FFT transformation is performed to obtain the relative nonlinear paramet...
Embodiment 2
[0088] The present application also provides a non-linear ultrasonic detection system suitable for concrete carbonation, the detection system includes an arbitrary waveform generator, a broadband power amplifier, a PZT piezoelectric ceramic, and an oscilloscope; wherein, the arbitrary waveform generator and broadband power The amplifier is connected, and the synchronous output end of the arbitrary waveform generator is connected to the oscilloscope; the broadband power amplifier is connected to the test piece, and the two ends of the test piece are respectively provided with PZT piezoelectric tiles; The output terminal of the broadband power amplifier and the PZT piezoelectric ceramic chip at the input terminal of the test piece are connected to an oscilloscope.
[0089] Further, the arbitrary waveform generator is used to generate a sinusoidal waveform electrical signal, the broadband power amplifier is used to amplify the waveform electrical signal, and the PZT piezoelectric ...
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