GB1379869A - Apparatus for detecting angular displacement - Google Patents

Apparatus for detecting angular displacement

Info

Publication number
GB1379869A
GB1379869A GB2046373A GB1083173A GB1379869A GB 1379869 A GB1379869 A GB 1379869A GB 2046373 A GB2046373 A GB 2046373A GB 1083173 A GB1083173 A GB 1083173A GB 1379869 A GB1379869 A GB 1379869A
Authority
GB
United Kingdom
Prior art keywords
secondaries
arms
shaft
angular displacement
pulses
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
GB2046373A
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.)
Okuma Corp
Original Assignee
Okuma Machinery Works 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 Okuma Machinery Works Ltd filed Critical Okuma Machinery Works Ltd
Priority to GB2046373A priority Critical patent/GB1379869A/en
Priority claimed from GB2046373A external-priority patent/GB1434091A/en
Publication of GB1379869A publication Critical patent/GB1379869A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • 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
    • G01D5/204—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 by influencing the mutual induction between two or more coils
    • G01D5/2046—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 by influencing the mutual induction between two or more coils by a movable ferromagnetic element, e.g. a core
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/70—Automatic control for modifying converter range

Landscapes

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

Abstract

1379869 Angular displacement transducers OKUMA MACHINERY WORKS Ltd 6 March 1973 10831/73 Heading G1N [Also in Division G4] Apparatus for detecting the angular displacement of a shaft utilizes the vernier principle and comprises a stationary disc having a central core with a primary winding 12 wound therearound, and a plurality of poles disposed on equi-distant portions of the periphery and having secondary winding coils 13 thereon, and a rotatable element mounted on the shaft and coaxial with the disc and having a plurality of radially extending arms 15, the number of arms 15 being either 1 less or 1 greater than the number of poles and secondaries 13. In use as shown when the primary 12 is energized, as the shaft rotates the arms 15 align one at a time with a corresponding one of the secondaries 13 and hence a full rotation of the rotatable element gives rise to many more pulses in the secondaries than the number of secondaries used. For example with 10 coils 13 and 11 arms 15, 110 pulses are produced from one revolution of the shaft.
GB2046373A 1973-03-06 1973-03-06 Apparatus for detecting angular displacement Expired GB1379869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2046373A GB1379869A (en) 1973-03-06 1973-03-06 Apparatus for detecting angular displacement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2046373A GB1379869A (en) 1973-03-06 1973-03-06 Apparatus for detecting angular displacement
GB2046373A GB1434091A (en) 1973-04-30 1973-04-30 Plant for burning or heat treatment of granular or pulverous material

Publications (1)

Publication Number Publication Date
GB1379869A true GB1379869A (en) 1975-01-08

Family

ID=26247786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2046373A Expired GB1379869A (en) 1973-03-06 1973-03-06 Apparatus for detecting angular displacement

Country Status (1)

Country Link
GB (1) GB1379869A (en)

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Legal Events

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