Pressure or fluid level sensor

Details Pressure or fluid level sensor Pressure or fluid level sensor

1993-01-22

1994-04-19

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

With illumination

250900, 250904, G01B 1100, G01F 2300

Patent

active

053035860

ABSTRACT:
A moveable body, cladding medium, and fiber are arranged to form a sensor suitable for use in monitoring changes in liquid, fluid, and material level and changes in pressure. The moveable body moves in response to changes in pressure or force. Movement of the body causes a change in the length of cladding medium surrounding an optical fiber. As the extent of cladded fiber length changes, the intensity of light transmitted through the fiber also changes.

REFERENCES:
patent: 2984148 (1961-05-01), Vollmer
patent: 4069838 (1978-01-01), Hansel et al.
patent: 4287427 (1981-09-01), Scifres
patent: 4320394 (1982-03-01), John, Jr.
patent: 4836632 (1989-06-01), Bardoorian
patent: 4880971 (1989-11-01), Danisch
patent: 4979797 (1990-12-01), Nemeth
patent: 4994682 (1991-02-01), Woodside
patent: 5072617 (1991-12-01), Weiss
A. Arie et al., "Measurerment and Analysis . . . Applications to Sensors", Applied Optics, vol. 25, No. 11, Jun. 1986, pp. 1754-1758.

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