会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Nondestructive inspection apparatus for inspecting an internal defect in an object
    • 用于检查物体内部缺陷的非破坏性检查装置
    • US06591681B1
    • 2003-07-15
    • US10111168
    • 2002-04-22
    • Takashi ShimadaShinichi HattoriTakahiro SakamotoSyuichi Nakamura
    • Takashi ShimadaShinichi HattoriTakahiro SakamotoSyuichi Nakamura
    • G01N2920
    • G01N29/045G01N29/11G01N29/2412G01N29/4454G01N2291/014G01N2291/0232G01N2291/02827G01N2291/0427G01N2291/044G01N2291/102
    • A nondestructive inspection apparatus includes a vibrating section 11 which is adapted to be placed in pressure contact with a surface of a measuring object 16 for generating an acoustic elastic wave W, a receiving section 12 for receiving a reflected wave, a pushing mechanism 13 for pushing the vibrating section and the receiving section against the measuring object, a pushing force measurement section 14 for detecting pushing forces Fa, Fb during vibration, a vibration control section 10 for driving the vibrating section, and a reception signal processing section 15 for determining the internal defect based on a reception signal R. The reception signal processing section includes a reflection energy calculation section for calculating a reflection energy level due to elasticity vibration of the measuring object, a reflection energy correction section for normalizing the reflection energy level by the pushing force to calculate a correction value; and an internal defect determination section for detecting the internal defect based on the correction value. With this arrangement, the absolute reflection energy level of the reflected wave is determined through comparison, thereby making it possible to improve the evaluation accuracy of the internal defect to a substantial extent.
    • 非破坏性检查装置包括:振动部11,其适于与测量对象16的表面压力接触以产生声弹性波W;接收部12,用于接收反射波;推动机构13,用于推动 振动部分和接收部分相对于测量对象,用于检测振动期间的推动力Fa,Fb的推力测量部分14,用于驱动振动部分的振动控制部分10以及用于确定内部振动的接收信号处理部分15 基于接收信号R的缺陷。接收信号处理部分包括:反射能量计算部分,用于计算由于测量对象的弹性振动引起的反射能量水平;反射能量校正部分,用于通过推力使反射能量级别归一化 计算校正值; 以及内部缺陷确定部分,用于基于所述校正值来检测所述内部缺陷。 通过这种布置,通过比较来确定反射波的绝对反射能级,从而可以在很大程度上提高内部缺陷的评估精度。