Angular displacement detecting device for floating body with int

Details Angular displacement detecting device for floating body with int Angular displacement detecting device for floating body with int

1990-11-28

1992-08-04

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25023113, G01D 530

Patent

active

051361590

ABSTRACT:
An angular displacement detecting device provided with a tubular casing having a chamber in which a liquid is sealed, a floating body disposed in the liquid and supported for rotation about a predetermined rotational axis, and a detector for detecting the relative angular displacement between the floating body and the tubular casing about the rotational axis, comprises a closed-magnetic-path forming member for forming a closed magnetic path including the floating body, and an electrical conductor disposed in the closed magnetic path so as to be subject to an electromagnetic force which is generated from the closed magnetic path by energization, the electrical conductor relatively displacing the floating body with respect to the tubular casing through the action of the electromagnetic force.

REFERENCES:
patent: 4077252 (1978-03-01), Stutz et al.
patent: 4572030 (1986-02-01), Sakurai et al.

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