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Ultrasonic probe transmitting/receiving an ultrasonic wave of a plurality of frequencies and ultrasonic wave inspection apparatus using the same
Ultrasonic probe transmitting/receiving an ultrasonic wave of a plurality of frequencies and ultrasonic wave inspection apparatus using the same
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机译:发送/接收多个频率的超声波的超声波探头以及使用该超声波探头的超声波检查装置
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摘要
In an ultrasonic inspection apparatus, a piezoelectric element having a first resonant frequency is stuck to a complex resonance member having a second resonant frequency. The second resonant frequency is determined with a conversion in terms of half wavelength. A resultant ultrasonic probe transmits/receives ultrasonic waves of the first resonant frequency and a plurality of other frequencies. In constructing an ultrasonic tomographic image of the object to be inspected from a received signal obtained by using the ultrasonic probe, the imaging frequency is changed according to the depth in the object to be inspected.
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