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GB2021272A - Remote position indicator - Google Patents

Remote position indicator

Info

Publication number
GB2021272A
GB2021272A GB7915911A GB7915911A GB2021272A GB 2021272 A GB2021272 A GB 2021272A GB 7915911 A GB7915911 A GB 7915911A GB 7915911 A GB7915911 A GB 7915911A GB 2021272 A GB2021272 A GB 2021272A
Authority
GB
United Kingdom
Prior art keywords
contacts
winding
coils
right angles
accordance
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.)
Granted
Application number
GB7915911A
Other versions
GB2021272B (en
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB7915911A priority Critical patent/GB2021272B/en
Publication of GB2021272A publication Critical patent/GB2021272A/en
Application granted granted Critical
Publication of GB2021272B publication Critical patent/GB2021272B/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
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G08C19/04—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage using variable resistance
    • 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
    • G01D5/16—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 resistance
    • G01D5/165—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 resistance by relative movement of a point of contact or actuation and a resistive track
    • G01D5/1655—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 resistance by relative movement of a point of contact or actuation and a resistive track more than one point of contact or actuation on one or more tracks

Landscapes

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

Abstract

Known electrical systems for providing remote indication of the position of a moveable member comprise a transmitter converting the member position into electrical signals and a receiver which moves an indicator in accordance with those signals. In a known type the transmitter comprises a toroidal resistor with taps at 120 DEG and two diametrically opposite brushes which move with the member. The present invention has simpler components and comprises a transmitting device having a planar resistance winding 31 across which a D.C. potential is in applied, a zero potential mid-point tapping 61, and a pair of contacts 43 and 46 rotatable over winding 31 about an axis 35 in accordance with movement of the member and disposed at right angles around that axis, and an indicating device which includes two coils 64 and 65 arranged at right angles and connected between contacts 43 and 46 respectively and the tapping (61) of the transmitting device. A magnetised rotor of the indicating device responds to the resultant magnetic field produced by coils 64 and 65 and carries a pointer to provide an indication of the position of contacts 43 and 46 relative to winding 31 and therefore of the position of the moveable member. <IMAGE>
GB7915911A 1978-05-08 1979-05-08 Remote position indicator Expired GB2021272B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7915911A GB2021272B (en) 1978-05-08 1979-05-08 Remote position indicator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1834878 1978-05-08
GB7915911A GB2021272B (en) 1978-05-08 1979-05-08 Remote position indicator

Publications (2)

Publication Number Publication Date
GB2021272A true GB2021272A (en) 1979-11-28
GB2021272B GB2021272B (en) 1982-08-11

Family

ID=26253329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7915911A Expired GB2021272B (en) 1978-05-08 1979-05-08 Remote position indicator

Country Status (1)

Country Link
GB (1) GB2021272B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987006689A1 (en) * 1986-04-25 1987-11-05 Robert Bosch Gmbh Device for detecting the position of a moving part in a motor vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987006689A1 (en) * 1986-04-25 1987-11-05 Robert Bosch Gmbh Device for detecting the position of a moving part in a motor vehicle

Also Published As

Publication number Publication date
GB2021272B (en) 1982-08-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee