Load detecting device

Details Load detecting device Load detecting device

2006-08-29

2006-08-29

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S227160

Reexamination Certificate

active

07098445

ABSTRACT:
A pressure-sensitive sensor which is a load detecting device of the present invention is structured to include: an optical fiber of a predetermined length; a light-emitting element, disposed at a longitudinal direction one end side of the optical fiber, for emitting light and making the light incident from one end of the optical fiber; a light-receiving element, disposed at a longitudinal direction other end side of the optical fiber, for receiving light which has passed through the optical fiber and outputting a signal corresponding to an amount of received light; and a power source wire for light-emission and a ground wire for light-emission which are wound around an outer periphery of the optical fiber, and are formed in spiral forms along the outer periphery, and are connected to the light-emitting element. The power source wire for light-emission, which forms a spiral form at the outer periphery of the optical fiber, functions as a pressure element and improves sensitivity of the pressure-sensitive sensor.

REFERENCES:
patent: 4618764 (1986-10-01), Harmer
patent: 5419322 (1995-05-01), Joseph
patent: U-05-73604 (1993-10-01), None
patent: U-07-25527 (1995-05-01), None
patent: A-07-151615 (1995-06-01), None
patent: A-07-190732 (1995-07-01), None

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