发明名称 |
Interferometric signal conditioner for measurement of displacements of a Fabry-Pérot interferometer |
摘要 |
A signal conditioner to measure the length of an interferometric gap in a Fabry-Perot sensor (interferometer). The invention includes a light source, a Fabry-Perot interferometer capable of spanning a range of gaps in response to physical changes in the environment, a second interferometer that is placed in series with the Fabry-Perot interferometer which does not filter any particular wavelengths of light but acts as an optical cross-correlator such as a Fizeau wedge, a detector for converting the correlated light signal into electronic signals, and an electronic processor which controls system elements and generates a signal indicative of the length of the gap spanned by the Fabry-Perot sensor. <IMAGE> |
申请公布号 |
EP1598635(A1) |
申请公布日期 |
2005.11.23 |
申请号 |
EP20050252344 |
申请日期 |
2005.04.15 |
申请人 |
DAVIDSON INSTRUMENTS |
发明人 |
JEFFERS, LARRY A.;BERTHOLD, JOHN W.;LOPUSHANSKY, RICHARD L.;NEEDHAM, DAVID B. |
分类号 |
G01B9/02;G01D5/26;G02B26/00 |
主分类号 |
G01B9/02 |
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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