GB874088A - Modulator system for micro-positioning transducer - Google Patents

Modulator system for micro-positioning transducer

Info

Publication number
GB874088A
GB874088A GB2826/58A GB282658A GB874088A GB 874088 A GB874088 A GB 874088A GB 2826/58 A GB2826/58 A GB 2826/58A GB 282658 A GB282658 A GB 282658A GB 874088 A GB874088 A GB 874088A
Authority
GB
United Kingdom
Prior art keywords
phase
output
input elements
displacement
transducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2826/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Canada Inc
Original Assignee
Westinghouse Canada Inc
Canadian Westinghouse Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Canada Inc, Canadian Westinghouse Co Ltd filed Critical Westinghouse Canada Inc
Publication of GB874088A publication Critical patent/GB874088A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/38—Electric signal transmission systems using dynamo-electric devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

874,088. Electric measuring systems. CANADIAN WESTINGHOUSE CO. Ltd. Jan. 28, 1958 [Feb. 22, 1957], No. 2826/58. Class 40 (1). In a system for measuring linear displacement utilizing a transducer consisting of oppositely energized input elements and an output element normally centrally located with respect to the input elements e.g. an E-type transformer, the sensitivity is increased, without errors due to phase distortion by using an L.F. modulated H.F. carrier energizing voltage. As shown (Fig. 2) the output from an H.F. oscillator 11 is modulated at a low frequency at 12 and the carrier suppressed to give two similar outputs A, B in which the carrier waves are 180 degrees out of phase. These signals are fed to the input elements of a transducer 13 whose output, consisting of a signal in phase with A or B depending on the direction of the displacement, is mixed with part of the output of oscillator 11 and fed to a detector 15 to produce a phase-sensitive L.F. signal indicative of the extent and direction of displacement. Specifications 843,816 and 843,817 are referred to.
GB2826/58A 1957-02-22 1958-01-28 Modulator system for micro-positioning transducer Expired GB874088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA874088X 1957-02-22

Publications (1)

Publication Number Publication Date
GB874088A true GB874088A (en) 1961-08-02

Family

ID=4172752

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2826/58A Expired GB874088A (en) 1957-02-22 1958-01-28 Modulator system for micro-positioning transducer

Country Status (1)

Country Link
GB (1) GB874088A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538535A1 (en) * 1982-12-27 1984-06-29 Varian Associates HIGH RESOLUTION POSITION DETECTION DEVICE, IN PARTICULAR FOR THE MAGNETRON TUNING ROD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538535A1 (en) * 1982-12-27 1984-06-29 Varian Associates HIGH RESOLUTION POSITION DETECTION DEVICE, IN PARTICULAR FOR THE MAGNETRON TUNING ROD

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