发明名称 |
FIBER-OPTICAL PRESSURE DETECTOR |
摘要 |
<p>- ? FIBER-OPTICAL PRESSURE DETECTOR An optical fiber disposed between a light source and a photodetector is subjected at a number of points, equispaced along its axis, to a transverse pressure causing a significant attenuation of the transmitted luminous radiation. The optimum spacing of the pressure points is a function of the radius of the fiber core and of the refractive indices of its core and its envelope. These pressure points are formed by turns of a substantially incompressible helix which is wound around the fiber and which may be constituted by an internal or external rib of a surrounding flexible sheath of similarly incompressible material. The pressure may be applied by a piezoelectrical transducer and may be modulated by an electrical signal to be picked up by the photodetector.</p> |
申请公布号 |
CA1268640(A) |
申请公布日期 |
1990.05.08 |
申请号 |
CA19860513945 |
申请日期 |
1986.07.16 |
申请人 |
BATTELLE DEVELOPMENT CORPORATION |
发明人 |
HARMER, ALAN L. |
分类号 |
G02B6/00;G01L1/00;G01L1/24;(IPC1-7):G01L1/24 |
主分类号 |
G02B6/00 |
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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