Fiber-optical pressure sensor with contacting lightwave conductors
First Claim
1. A fiber-optical sensor, comprising a light transmitter device (6) which couples transmitted light into at least one first lightwave conductor, and also comprising a light receiver device (7) which receives light from the first lightwave conductor and at least one second lightwaveconductor, the lightwave conductors (3, 4) comprising adjacently situated portions between which light can be coupled, and wherein the light transmitter device (6) couples a first transmitted light into the first lightwave conductor (3, 4) and a second transmitted light into the second lightwave conductor (4, 3), the adjacently situated portions (1) of the lightwave conductors (3, 4) being accommodated together in an envelope (5) via which a pressure or force acts on the lightwave conductors (3, 4), portions of the lightwave conductors (3, 4) contacting one another in a light-transferring manner under the influence of said pressure or force.
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Accused Products
Abstract
The invention relates to a fiber-optical sensor, comprising a light transmitter device (6) which couples transmitted light into at least one first ligthwave conductor (3,4) and also comprising a light receiver device (7) which receives light from the first lightwave conductor and at least one second lightwave conductor (4,3). The lightwave conductors (3,4) comprise adjacently situated portions (1) which can contact one another in a light-transferring manner at given areas and which are accommodated together in an envelope (5) at this area, a force or a pressure being applied to the lightwave conductor via said envelope. The light transmitter device (6) also couples a first transmitted light into the first lightwave conductor (3,4) and a second transmitted light into the second lightwave conductor (4,3).
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Citations
10 Claims
- 1. A fiber-optical sensor, comprising a light transmitter device (6) which couples transmitted light into at least one first lightwave conductor, and also comprising a light receiver device (7) which receives light from the first lightwave conductor and at least one second lightwaveconductor, the lightwave conductors (3, 4) comprising adjacently situated portions between which light can be coupled, and wherein the light transmitter device (6) couples a first transmitted light into the first lightwave conductor (3, 4) and a second transmitted light into the second lightwave conductor (4, 3), the adjacently situated portions (1) of the lightwave conductors (3, 4) being accommodated together in an envelope (5) via which a pressure or force acts on the lightwave conductors (3, 4), portions of the lightwave conductors (3, 4) contacting one another in a light-transferring manner under the influence of said pressure or force.
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7. A fiber-optical sensor as claimed in wherein for temperature measurement the envelope and the lightwave conductors are made of a material having a different coefficient of thermal expansion.
Specification