Fiber optical luminescence sensor for measuring a mechanical...

Details Fiber optical luminescence sensor for measuring a mechanical... Fiber optical luminescence sensor for measuring a mechanical...

G - Physics

08

C

340/136, 73/51.5

G08C 21/00 (2006.01) G01D 5/26 (2006.01)

Patent

CA 1186525

ABSTRACT OF THE DISCLOSURE A fiber optical measuring apparatus suitable for measuring physical quantities such as position, speed, acceleration, force, pressure, elongation, temperature, etc., comprises at least one optical fiber for conducting incident light between an electronic unit and a sensor, the sensor comprising at least one luminescent element. The measuring apparatus is characterized in that the physical quantity to be measured is arranged to influence the position of an optical spectral filter, for example of absorption or interference type, relative to the opti- cal fiber in the sensor and/or relative to said lumin- escent element, and that said spectral filter is arranged to be situated, to a greater or lesser extent, between the end surface of the optical fiber and at least one of said luminescent elements.

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