发明名称 |
Apparatus and Method of Photoacoustic Sensor Signal Acquisition |
摘要 |
A photoacoustic detector includes first and second microphones carried by an acoustic sensing chamber. Signals from the microphones are processed using lock-in detection to increase the signal-to-noise ratio. An acoustic pressure generator can be incorporated to calibrate the microphones.
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申请公布号 |
US2012279280(A1) |
申请公布日期 |
2012.11.08 |
申请号 |
US201113101039 |
申请日期 |
2011.05.04 |
申请人 |
REZACHEK THOMAS M.;SHUBINSKY GARY;FREEMAN MICHAEL;HONEYWELL INTERNATIONAL INC. |
发明人 |
REZACHEK THOMAS M.;SHUBINSKY GARY;FREEMAN MICHAEL |
分类号 |
G01N21/17 |
主分类号 |
G01N21/17 |
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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