GB861153A - Measurement of displacement by electrical means - Google Patents

Measurement of displacement by electrical means

Info

Publication number
GB861153A
GB861153A GB3943857A GB3943857A GB861153A GB 861153 A GB861153 A GB 861153A GB 3943857 A GB3943857 A GB 3943857A GB 3943857 A GB3943857 A GB 3943857A GB 861153 A GB861153 A GB 861153A
Authority
GB
United Kingdom
Prior art keywords
screen
fed
coils
signal
phase
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
GB3943857A
Inventor
Bernard Edward Noltingk
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.)
TI Group Services Ltd
Original Assignee
TI Group Services 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 TI Group Services Ltd filed Critical TI Group Services Ltd
Priority to GB3943857A priority Critical patent/GB861153A/en
Publication of GB861153A publication Critical patent/GB861153A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/225—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the mutual induction between the two coils
    • G01D5/2258—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the mutual induction between the two coils by a movable ferromagnetic element, e.g. core

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Motors (AREA)

Abstract

861,153. Measuring displacement electrically. T. I. (GROUP SERVICES) Ltd. Dec. 18, 1958 [Dec. 19, 1957], No. 39438/57. Class 40 (1). [Also in Group XXXV] Movement is measured by positioning a conducting screen A between conductors, one of which is fed with an A.C. signal so as to vary the signal induced in the other. As shown in Fig. 2, coils P1, P2 are fed from a common oscillator O and coils S1, S2 are connected in opposition so that their combined outputs are zero when the screen is symmetrically positioned as shown and increases as the screen moves away from the central position, the phase sense of the combined output being determined by the direction of movement. The combined output is fed to the grid of V1 (Fig. 3), where it is amplified and phase compared at the grids of V3, V4 with a reference signal from oscillator O which is phase split, amplified at V2 and fed to the suppressor grids of V3, V4. The difference outputs on V3, V4 are measured by valve volt meter V5 which comprises a centre zero meter M. A tapered portion may precede the screen proper to ensure the production of an error signal of correct sign before the screen reaches the region of the coils (Fig. 5, not shown). The device may be used in a load cell for weighing.
GB3943857A 1957-12-19 1957-12-19 Measurement of displacement by electrical means Expired GB861153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3943857A GB861153A (en) 1957-12-19 1957-12-19 Measurement of displacement by electrical means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3943857A GB861153A (en) 1957-12-19 1957-12-19 Measurement of displacement by electrical means

Publications (1)

Publication Number Publication Date
GB861153A true GB861153A (en) 1961-02-15

Family

ID=10409545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3943857A Expired GB861153A (en) 1957-12-19 1957-12-19 Measurement of displacement by electrical means

Country Status (1)

Country Link
GB (1) GB861153A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828339A (en) * 1973-05-14 1974-08-06 S Schedrovitsky Crane overload safety device
FR2345849A2 (en) * 1976-03-23 1977-10-21 Hughes Microelectronics Ltd MULTIPLEX TRANSDUCER
US4123735A (en) * 1975-02-25 1978-10-31 Mash Dmitry M Induction-type meter for measuring mechanical quantities
DE3133062A1 (en) * 1980-08-29 1982-07-01 Aisin Seiki K.K., Kariya, Aichi "VIBRATION SENSOR ARRANGEMENT"
GB2131178A (en) * 1982-11-30 1984-06-13 Peutec Limited Piston position transducer
GB2183045A (en) * 1985-11-12 1987-05-28 Westinghouse Electric Corp Magnetic displacement transducer system
EP0529440A1 (en) * 1991-08-14 1993-03-03 Elektro-Mechanik Gmbh Apparatus for inductively measuring the position of a metal sheet

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828339A (en) * 1973-05-14 1974-08-06 S Schedrovitsky Crane overload safety device
US4123735A (en) * 1975-02-25 1978-10-31 Mash Dmitry M Induction-type meter for measuring mechanical quantities
FR2345849A2 (en) * 1976-03-23 1977-10-21 Hughes Microelectronics Ltd MULTIPLEX TRANSDUCER
DE3133062A1 (en) * 1980-08-29 1982-07-01 Aisin Seiki K.K., Kariya, Aichi "VIBRATION SENSOR ARRANGEMENT"
GB2131178A (en) * 1982-11-30 1984-06-13 Peutec Limited Piston position transducer
GB2183045A (en) * 1985-11-12 1987-05-28 Westinghouse Electric Corp Magnetic displacement transducer system
GB2183045B (en) * 1985-11-12 1989-11-22 Westinghouse Electric Corp Magnetic displacement transducer system
EP0529440A1 (en) * 1991-08-14 1993-03-03 Elektro-Mechanik Gmbh Apparatus for inductively measuring the position of a metal sheet
US5339029A (en) * 1991-08-14 1994-08-16 Elecktro-Mechanik Gmbh Methods and apparatus for measuring the postion of an edge of a metal strip by electronic induction

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