发明名称 |
HIGH SPEED HOT AIR LEAK SENSOR |
摘要 |
A hot air leak sensor (12) for sensing jet engine bleed air leaks in an aircraft. Infrared detectors (10) are combined with thermal re-radiating elements (30) which are installed in air passages adjacent to the bleed air ducts (70) and downstream of the region where a bleed air leak may occur. The elements (30) are approximately 50% transmissive and 50% absorptive to infrared radiation with wavelengths within the range of approximately 4 to 20 micrometers. Incident radiation within the field of view of the detector (12) is both transmitted and absorbed for re-radiation to the detector. If no incident radiation within the sensor field of view is available, the re-radiating element (30) still responds to the increased airstream temperature resulting from the bleed air leak and supplies radiation to the detetor to provide detection of the leak. |
申请公布号 |
AU3671984(A) |
申请公布日期 |
1985.07.12 |
申请号 |
AU19840036719 |
申请日期 |
1984.11.08 |
申请人 |
SANTA BARBARA RESEARCH CENTER |
发明人 |
KERN, MARK T.;CINZORI, ROBERT J.;FULLER, WILLIAM D. |
分类号 |
B64D43/00;B64D45/00;G01M3/02;G01M3/38 |
主分类号 |
B64D43/00 |
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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