Electromagnetic ultrasonic signal superposition method
A signal superposition and electromagnetic ultrasonic technology, which is applied in the direction of analyzing solids by using sound waves/ultrasonic waves/infrasonic waves, can solve the problems of low signal-to-noise ratio in flaw detection, weak ultrasonic signals, and low efficiency of electromagnetic ultrasonic sound-to-electricity conversion, so as to improve signal-to-noise Ratio, the effect of increasing the signal amplitude
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[0018] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings. The embodiments are described below in order to explain the present invention by referring to the figures.
[0019] The electromagnetic ultrasonic flaw detection device according to the embodiment of the present invention includes a transmitting part and a receiving part, the transmitting part is used for generating ultrasonic waves, and the receiving part is used for receiving ultrasonic echoes and judging defect positions and / or thicknesses of test materials according to the echoes.
[0020] figure 1 It is a block diagram of the transmitting part of the electromagnetic ultrasonic flaw detection device according to the embodiment of the present invention. The transmitting part of the electromagnetic ultrasonic flaw detection device according to the embodiment of the present invention includes a transmitting pulse control system 10, a fi...
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