基本信息:
- 专利标题： Ultrasonic stress measurement method and device
- 专利标题（中）：超声应变测量方法和装置
- 申请号：JP2009295690 申请日：2009-12-25
- 公开(公告)号：JP2010169680A 公开(公告)日：2010-08-05
- 发明人： HARA NOBUO , TAKECHI YOHEI , OMORI YUTAKA
- 申请人： Panasonic Corp , パナソニック株式会社
- 专利权人： Panasonic Corp,パナソニック株式会社
- 当前专利权人： Panasonic Corp,パナソニック株式会社
- 优先权： JP2008332536 2008-12-26
- 主分类号： G01L1/00
- IPC分类号： G01L1/00
摘要：
PROBLEM TO BE SOLVED: To provide an ultrasonic stress measurement method by which the residual stress of a measuring object is measured with a higher degree of accuracy.
SOLUTION: The ultrasonic stress measurement method for measuring the residual stress of the measuring object having a layered structure using an ultrasonic wave includes: setting a plurality of vibration modes according to the number of degrees of freedom of a measuring target layer in the measuring object; performing, for each vibration mode, a measurement operation for emitting an ultrasonic wave corresponding to the set vibration mode to the measuring target layer, for receiving the ultrasonic wave reflected by the measuring target layer, and for measuring the eigenfrequency of the measuring target layer; and measuring the residual stress of the measuring target layer based on plural measurement data of the eigenfrequency with respect to each vibration mode obtained by the measurement operation.
COPYRIGHT: (C)2010,JPO&INPIT
摘要（中）：
SOLUTION: The ultrasonic stress measurement method for measuring the residual stress of the measuring object having a layered structure using an ultrasonic wave includes: setting a plurality of vibration modes according to the number of degrees of freedom of a measuring target layer in the measuring object; performing, for each vibration mode, a measurement operation for emitting an ultrasonic wave corresponding to the set vibration mode to the measuring target layer, for receiving the ultrasonic wave reflected by the measuring target layer, and for measuring the eigenfrequency of the measuring target layer; and measuring the residual stress of the measuring target layer based on plural measurement data of the eigenfrequency with respect to each vibration mode obtained by the measurement operation.
COPYRIGHT: (C)2010,JPO&INPIT
要解决的问题：提供一种以更高精度测量测量对象的残余应力的超声波应力测量方法。 解决方案：使用超声波测量具有层叠结构的测量对象的残余应力的超声波应力测量方法包括：根据测量对象层的自由度数量来设定多个振动模式 测量对象 对于每个振动模式，对测量对象层进行与设定的振动模式对应的超声波的测定动作，接收被测定对象层反射的超声波，测定测定对象层的本征频率; 并且基于通过测量操作获得的每个振动模式的本征频率的多个测量数据来测量测量目标层的残余应力。 版权所有（C）2010，JPO＆INPIT
公开/授权文献:
- JP5366796B2 Ultrasonic stress measurement method and apparatus 公开/授权日：2013-12-11