发明名称 |
Birefringent optical temperature sensor and method |
摘要 |
The invention concerns a tandem interferometer for temperature sensing. The low coherence interferometry (LCI) system comprises a polarization-based sensing interferometer comprising a birefringent crystal having a sensor temperature sensitivity and a birefringence dispersion, and a readout interferometer being either a Fizeau interferometer using an optical wedge or a polarization interferometer using a birefringent wedge. In one embodiment of the invention, the birefringent crystal has dispersion properties similar to that of the birefringent wedge or that of the optical wedge of the readout interferometer. The present invention also provides a signal processing method for correcting the dispersion effect and for noise filtering in LCI-based optical sensors of the tandem interferometer arrangement.
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申请公布号 |
US2007133004(A1) |
申请公布日期 |
2007.06.14 |
申请号 |
US20060333203 |
申请日期 |
2006.01.18 |
申请人 |
DUPLAIN GAETAN;VAN NESTE RICHARD |
发明人 |
DUPLAIN GAETAN;VAN NESTE RICHARD |
分类号 |
G01B9/02 |
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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