Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1978-06-08
1980-08-19
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
73655, G01D 534
Patent
active
042186145
ABSTRACT:
A device is provided for measuring the amplitude of vibration of a vibratory element. The vibratory element or reed has a vane attached to it extending between opposed fiber optics light guides. The vane has a mask portion which has slits forming alternating light-transmitting elements and opaque elements uniformly spaced in the direction of movement of the vane and lying in the path of light between the light guides. One of the light guides has a stationary mask with at least one slit corresponding in size and orientation to those of the vane. When light is transmitted from one of the light guides to the other while the vibratory member is vibrating, the light must pass through the slits of the masks and is alternately transmitted and cut off. By counting the number of minimum light transmissions, therefore, the amplitude of the vibration can be determined.
REFERENCES:
patent: 2214910 (1940-09-01), Potts
patent: 2351955 (1944-06-01), Graf
patent: 2447863 (1948-08-01), Kent et al.
patent: 2666650 (1954-01-01), MacDonell
patent: 2873103 (1959-02-01), Hautly
patent: 3093743 (1963-06-01), Inderwicsen
patent: 3224279 (1965-12-01), Galli et al.
patent: 3364813 (1968-01-01), McKinney
patent: 3394976 (1968-07-01), Hawkins
patent: 3789674 (1974-02-01), Anderson et al.
patent: 3961185 (1976-06-01), Brokenshire
Nelms David C.
Ross Gary E.
Westinghouse Electric Corp.
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