Linear variable phase transformer with constant magnitude output

Details Linear variable phase transformer with constant magnitude output Linear variable phase transformer with constant magnitude output

1978-05-22

1981-08-04

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

34087032, 318653, 323347, 336 45, G01R 3300, G01B 700

Patent

active

042824850

ABSTRACT:
A linear variable phase transformer position to phase transducer produces a linear phase change in an output signal with respect to displacement. Moreover, the magnitude of such output signal remains relatively constant while such displacement occurs. The transducer includes two primaries which are specially wound according to sine and cosine functions and are excited out of phase, a secondary, and a core that combines the primary signals and induces the output signal in the secondary according to the core position relative to the primaries.

REFERENCES:
patent: 2769969 (1956-11-01), Comstock
patent: 2911632 (1959-11-01), Levine et al.
patent: 2988697 (1961-06-01), Hirsch
patent: 3138772 (1964-06-01), Persons, Jr.
patent: 3281655 (1966-10-01), Blasingame
patent: 3546570 (1970-12-01), Bullock
patent: 3555542 (1971-01-01), Guiot
patent: 3671876 (1972-06-01), Oshiro
patent: 4134065 (1979-01-01), Bauer et al.
E. Hughes, "Electrical Technology", 4 Ed., 1969 published by Longmans, Green & Co., Ltd., pp. 457-459.

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