发明名称 |
Interferometric sensing apparatus including adjustable reference arm and associated methods |
摘要 |
A sensing apparatus includes an excitation source configured to induce waves in a target, and an optical waveguide interferometer configured to sense the induced waves in the target. The optical waveguide interferometer includes a plurality of optical couplers and interconnecting optical fibers arranged to define a reference arm, a measurement arm, and a probe segment coupled to the reference arm and the measurement arm and having a probe segment end to be positioned adjacent the target. An optical path length adjustor is coupled to the reference arm. A controller cooperates with the path length adjustor and is configured to adjust an optical path length of the reference arm to maintain a constant relationship with respect to an optical path length of the measurement arm. |
申请公布号 |
US8675202(B2) |
申请公布日期 |
2014.03.18 |
申请号 |
US201113102712 |
申请日期 |
2011.05.06 |
申请人 |
MONTGOMERY ROBERT M.;CARMEAN RANDY L.;MIDDLETON, IV CHARLES FRANKLIN;TONTI JAMES G.;HARRIS CORPORATION |
发明人 |
MONTGOMERY ROBERT M.;CARMEAN RANDY L.;MIDDLETON, IV CHARLES FRANKLIN;TONTI JAMES G. |
分类号 |
G01B9/02;G01B11/02 |
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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