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GB1465335A - Electrical displacement transducer - Google Patents

Electrical displacement transducer

Info

Publication number
GB1465335A
GB1465335A GB3684474A GB3684474A GB1465335A GB 1465335 A GB1465335 A GB 1465335A GB 3684474 A GB3684474 A GB 3684474A GB 3684474 A GB3684474 A GB 3684474A GB 1465335 A GB1465335 A GB 1465335A
Authority
GB
United Kingdom
Prior art keywords
flux
armature
poles
displacement
magnetoresistor
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
GB3684474A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1465335A publication Critical patent/GB1465335A/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
    • G01D5/142—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 using Hall-effect devices
    • G01D5/147—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 using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

1465335 Measuring displacement electrically W BRADLEY 22 Aug 1974 [13 Sept 1973] 36844/74 Heading G1N A transducer providing an electrical signal varying with displacement of shaft 27 along its longitudinal axis includes magnets 14, 15 bearing respective poles 11, 12 of opposite polarity; a magnetic flux transmitting armature 26 mounted for displacement along the longitudinal axis of the shaft towards or away from the poles to increase or decrease the flux transmitted by the armature; a magnetoresistor 55 carried by the armature which latter has a range of movement s between limits, at one of which the flux transmitted through the element is a maximum and at the other of which the flux transmitted through the element falls to zero due to the flux being shunted through a shorting bar or bulkhead 38. In an alternative embodiment Fig. 7 (not shown) the armature (80) is formed by an elongate stem (81) with heads (82a, b) at opposite ends thereof, which co-operate with poles (83a, b) of a tubular magnetic member (83) arranged co-axially with the armature and with a tubular flux shorting bar (86) to cause the flux through magnetoresistor (85) to drop to zero when the head (82b) is adjacent end (86b) of the bar. Temperature compensation is provided.
GB3684474A 1973-09-13 1974-08-22 Electrical displacement transducer Expired GB1465335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00396744A US3842385A (en) 1973-09-13 1973-09-13 High performance transducer

Publications (1)

Publication Number Publication Date
GB1465335A true GB1465335A (en) 1977-02-23

Family

ID=23568467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3684474A Expired GB1465335A (en) 1973-09-13 1974-08-22 Electrical displacement transducer

Country Status (6)

Country Link
US (1) US3842385A (en)
JP (1) JPS5057467A (en)
CA (1) CA1038057A (en)
DE (1) DE2443454C3 (en)
FR (1) FR2244160B3 (en)
GB (1) GB1465335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227171A (en) 1977-12-23 1980-10-07 Denki Onkyo Co., Ltd. Liquid level sensing means

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334204A (en) * 1980-06-30 1982-06-08 The Boeing Company Proximity switch assembly
US20020003054A1 (en) * 2000-07-10 2002-01-10 Teruo Kamada Vehicular body panel or component part and method for manufacturing same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676828A (en) * 1969-10-16 1972-07-11 Denki Onkyo Co Ltd Magnetic switching apparatus
US3680026A (en) * 1971-05-24 1972-07-25 Denki Onkyo Co Ltd Contactless switching apparatus
US3783430A (en) * 1971-05-24 1974-01-01 Denki Onkyo Co Ltd Contactless switching apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227171A (en) 1977-12-23 1980-10-07 Denki Onkyo Co., Ltd. Liquid level sensing means

Also Published As

Publication number Publication date
DE2443454B2 (en) 1979-05-17
JPS5057467A (en) 1975-05-19
CA1038057A (en) 1978-09-05
FR2244160A1 (en) 1975-04-11
DE2443454C3 (en) 1980-01-31
US3842385A (en) 1974-10-15
FR2244160B3 (en) 1977-06-17
DE2443454A1 (en) 1975-03-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee