发明名称 |
TRYCKOVERVAKARE |
摘要 |
An integrated optical pressure transducer having a diaphragm fabricated from a low-loss glass is positioned at the location where pressure changes are to be measured. An optical waveguide loop formed on one surface of the diaphragm acts as a ring cavity in which the difference between the resonating frequencies varies with pressure but not with temperature. Light energy is coupled into the waveguide loop from an optical source through a tangentially located input waveguide. An output waveguide, also tangentially located, couples light energy from the waveguide loop to a broadband detector so that the changes in frequency spectrum of the resonating frequencies within the waveguide loop can be monitored. |
申请公布号 |
SE451279(B) |
申请公布日期 |
1987.09.21 |
申请号 |
SE19840004824 |
申请日期 |
1984.09.26 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
G * MELTZ;L B * ALLEN JR;C M * FERRAR |
分类号 |
G01L11/00;G01L1/24;G01L9/00;G01L11/02;(IPC1-7):G01L11/00 |
主分类号 |
G01L11/00 |
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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