发明名称 |
VERFAHREN UND VORRICHTUNG ZUR FESTSTELLUNG SCHÄDEN IN STRUKTUREN |
摘要 |
The entire contents of these applications are incorporated herein by reference. A method and apparatus for detecting and monitoring fractures in a structure by monitoring acoustic energy transmitted within the structure by receiving continuously over a period of time electrical signals from a plurality of acoustic tranducers carried by the structure in a pulse processor to form data bursts from pulses in the signals and deriving, for each of a plurality of the data bursts, delta-t values representing the differences between burst arrival times at each sensor, the delta-t values forming a delta-t pattern, and generating a damage indication signal when the delta-t pattern is repeated to a predetermined degree. |
申请公布号 |
AT346292(T) |
申请公布日期 |
2006.12.15 |
申请号 |
AT20010929865T |
申请日期 |
2001.05.18 |
申请人 |
BAE SYSTEMS PLC |
发明人 |
O'BRIEN, EDWIN, WILLIAM;IBBOTSON, ANDREW, ROBERT |
分类号 |
G01N29/44;G01M5/00;G01M7/00;G01N29/14;G01N29/36;G01N29/38;(IPC1-7):G01N29/22;G01N29/04 |
主分类号 |
G01N29/44 |
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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