发明名称 |
SETT OCH ANORDNING FOR ULTRALJUDSMETNING AV PAKENNINGSKONCENTRATIONER |
摘要 |
An apparatus for ultrasonically measuring concentrations of stress in objects of interest. The apparatus includes an ultrasonic transducer array for propagating acoustic waves in an object of interest along a plurality of determinable directions and from a plurality of determinable positions. A time interval counter measures the time of flight of the acoustic waves along the determinable directions and from the determinable positions. The time of flight measurements are reconstructed into a map of the variations in acoustic velocity within the object. The changes in acoustic velocity are then mathematically converted into a map of stress concentration areas in the object of interest. |
申请公布号 |
SE7904629(L) |
申请公布日期 |
1979.12.01 |
申请号 |
SE19790004629 |
申请日期 |
1979.05.29 |
申请人 |
ELECTRIC POWER RES INST |
发明人 |
HILDEBRAND B P |
分类号 |
G01L1/00;G01L1/25;G01N29/07;(IPC1-7):G01L1/00 |
主分类号 |
G01L1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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