Control transducer

Details Control transducer Control transducer

1980-10-06

1984-06-19

Crosland, Donnie L.

Communications: electrical

Continuously variable indicating

With particular transmitter

34087032, 34087033, 34087035, 34087036, 73520, 324176, 336121, 336132, G08C 1906, G08C 1912

Patent

active

044555555

ABSTRACT:
An inductive displacement transducer includes a primary and at least two secondary coils with a movable coupling member for varying the amount of mutual coupling therebetween as a function of the displacement of a movable member. The secondary coils are wrapped around magnetic cores which are embedded in a disc-shaped core structure. The coupling member comprises a pair of magnetic conductive arms disposed on either side of the core structure and attached to a shaft rotatably received by a central axial bore in the core structure. An end of the shaft may be attached to the movable member. A control circuit excites the primary coil with an excitation signal with abrupt repetitive transients so that voltage spikes appear in the secondary coils with an amplitude related to the amount of mutual coupling. The voltage spikes are integrated into a D. C. voltage with an amplitude of the voltage spikes and thus, indicative of the displacement of the movable member.

REFERENCES:
patent: 1984939 (1983-02-01), Nachumsohn
patent: 2430757 (1947-11-01), Conrad et al.
patent: 3137812 (1964-06-01), Andresen
patent: 3250982 (1966-05-01), Bowie
patent: 3624625 (1971-11-01), Stonestreet
patent: 3641429 (1972-02-01), Cox, Jr. et al.
patent: 3646537 (1972-02-01), Erspamer et al.
patent: 3758845 (1973-09-01), MacKelvie et al.
patent: 3818326 (1974-06-01), Masuda et al.
patent: 3855525 (1974-12-01), Bernin
patent: 3961243 (1976-06-01), Schulz
patent: 4013911 (1977-03-01), Fujiwara et al.
patent: 4086533 (1978-04-01), Ricouard et al.
patent: 4156192 (1979-05-01), Schedrovitsky et al.
patent: 4164706 (1979-08-01), Akita et al.

Affiliated with

Also associated with

Rating

Control transducer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control transducer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-415726