| 发明名称 |
Ultrasonic Test Equipment and Evaluation Method Thereof |
| 摘要 |
An ultrasonic test equipment includes: a signal generating mechanism that generates a voltage waveform; an ultrasonic transmitting mechanism that excites ultrasonic vibrations having a lower frequency than a predetermined frequency to an object to be tested; an ultrasonic receiving mechanism that receives an ultrasonic response from the object to be tested; an AD converting mechanism that digitizes the received ultrasonic waveform; an analyzing mechanism that performs frequency analysis of the digital ultrasonic waveform digitized by the AD converting mechanism; an evaluating mechanism that extracts a variation of a nonlinear ultrasonic component from a frequency component of the digital ultrasonic wave obtained by the frequency analysis, compares the variation with defect data information in a defect information database, identifies a physical quantity of defect information of the object to be tested, and evaluates a defect in the object to be tested; and a control mechanism that partly or entirely controls a measurement system. |
| 申请公布号 |
US2014230556(A1) |
申请公布日期 |
2014.08.21 |
| 申请号 |
US201414184874 |
申请日期 |
2014.02.20 |
| 申请人 |
Kabushiki Kaisha Toshiba |
发明人 |
Yamamoto Setsu;Semboshi Jun;Yoshida Masahiro;Miura Takahiro;Watanabe Kazumi;Ochiai Makoto;Nagai Satoshi |
| 分类号 |
G01N29/34 |
主分类号 |
G01N29/34 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An ultrasonic test equipment comprising:
a signal generating mechanism that generates a voltage waveform; an ultrasonic transmitting mechanism that excites ultrasonic vibrations having a lower frequency than a predetermined frequency to an object to be tested; an ultrasonic receiving mechanism that receives an ultrasonic response from the object to be tested; an AD converting mechanism that digitizes the received ultrasonic waveform; an analyzing mechanism that performs frequency analysis of the digital ultrasonic waveform digitized by the AD converting mechanism; an evaluating mechanism that extracts a variation of a nonlinear ultrasonic component from a frequency component of the digital ultrasonic wave obtained by the frequency analysis, compares the variation with defect data information in a defect information database, identifies a physical quantity of defect information of the object to be tested, and evaluates a defect in the object to be tested; and a control mechanism that partly or entirely controls a measurement system. |
| 地址 |
Tokyo JP |
