Optical deformation sensor with operational testing by...

Details Optical deformation sensor with operational testing by... Optical deformation sensor with operational testing by...

2005-03-08

2005-03-08

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S227140

Reexamination Certificate

active

06864477

ABSTRACT:
The deformation sensor does not require a supplementary sensor to check functionality. This deformation sensor includes an optical transmission medium, multiple transmission elements, which couple the light of various wavelengths into the transmission medium, and multiple reception elements, which selectively couple the transmitted light out of the transmission medium according to wavelength. An evaluation unit detects deviations between the output signals of the reception elements and signals a malfunction of the sensor if the deviations exceed a preset measure.

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patent: 6185020 (2001-02-01), Horiuchi et al.
patent: 44 33 046 (1996-03-01), None
patent: 197 57 118 (1999-07-01), None

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