Force sensor and sensing method using crystal rods and light sig

Details Force sensor and sensing method using crystal rods and light sig Force sensor and sensing method using crystal rods and light sig

1993-09-30

1995-03-14

Williams, Hezron E.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73705, 356 32, G01L 124

Patent

active

053968050

ABSTRACT:
A force sensor and a force sensing method use crystal rods as both force responsive elements and light transmission media in combination with light input circuitry and processing circuitry to sense an applied force, such as oil or gas well pressure or fluid flow friction.

REFERENCES:
patent: 4336719 (1982-06-01), Lynnworth
patent: 4492121 (1985-01-01), Lehto
patent: 4577100 (1986-03-01), Meltz et al.
patent: 4848871 (1989-07-01), Seidel et al.
patent: 4930862 (1990-06-01), Miers et al.
patent: 5004913 (1991-04-01), Kleinerman
patent: 5004914 (1991-04-01), Vali et al.
patent: 5012679 (1991-05-01), Haefner

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