发明名称 |
Digitally compatible optical pressure measurement |
摘要 |
An apparatus for pressure measurement employs fiber optics to transport a broadband beam light to and from a remote electrically passive sensing head. In the sensing head, a linearly polarized beam is phase shifted in a birefringent plate, then passed through a photoelastic pressure sensor and a polarization analyzer. The wavelength for which the output light has an intensity minimum is a measure of the applied pressure.
|
申请公布号 |
US4321831(A) |
申请公布日期 |
1982.03.30 |
申请号 |
US19800191194 |
申请日期 |
1980.09.26 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
TOMLINSON, RICHARD G.;GLENN, WILLIAM H. |
分类号 |
G01L1/24;G01L9/00;G01L11/02;(IPC1-7):G01L11/00 |
主分类号 |
G01L1/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|