发明名称 |
Method and apparatus for measuring stress |
摘要 |
A method and apparatus for determining stress in a material independent of micro-structural variations and anisotropies. The method comprises comparing the velocities of two horizontally polarized and horizontally propagating ultrasonic shear waves with interchanged directions of propagation and polarization. The apparatus for carrying out the method comprises periodic permanent magnet-electromagnetic acoustic transducers for generating and detecting the shear waves and means for determining the wave velocities.
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申请公布号 |
US4522071(A) |
申请公布日期 |
1985.06.11 |
申请号 |
US19830518243 |
申请日期 |
1983.07.28 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE UNITED STATES DEPARTMENT OF ENERGY |
发明人 |
THOMPSON, R. BRUCE |
分类号 |
G01N29/07;G01N29/24;(IPC1-7):G01N29/00 |
主分类号 |
G01N29/07 |
代理机构 |
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代理人 |
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地址 |
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