Fiber optic flow sensor with high dynamic range

Claus P. Renschen

doi:10.1117/12.141261

5 March 1993 Fiber optic flow sensor with high dynamic range

Claus P. Renschen

Proceedings Volume 1795, Fiber Optic and Laser Sensors X; (1993) https://doi.org/10.1117/12.141261
Event: Fibers '92, 1992, Boston, MA, United States

Abstract

The deflection of a flexible cantilevered optical fiber is used to measured the flow of gases and fluids. For practical applications a combination of an emitting optical fiber with a half-shade edge and a positional sensitive diode (PSD) is used. For a PSD with a length of 3 mm a range of measurement of 1:500 and more is possible. The responsivity of this device is 10 ml/s. The effects of deflection caused by the mass of the fiber are compensated for by using a second fiber of equal length in a separated compartment in the sensor device.

Citation Download Citation

Claus P. Renschen "Fiber optic flow sensor with high dynamic range", Proc. SPIE 1795, Fiber Optic and Laser Sensors X, (5 March 1993); https://doi.org/10.1117/12.141261

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