GB1458549A - Apparatus for measuring the angular rotation of a shaft - Google Patents

Apparatus for measuring the angular rotation of a shaft

Info

Publication number
GB1458549A
GB1458549A GB2341874A GB2341874A GB1458549A GB 1458549 A GB1458549 A GB 1458549A GB 2341874 A GB2341874 A GB 2341874A GB 2341874 A GB2341874 A GB 2341874A GB 1458549 A GB1458549 A GB 1458549A
Authority
GB
United Kingdom
Prior art keywords
shaft
rotation
waveform
measuring
signal
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
GB2341874A
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.)
4K INTERNATIONAL AS
Original Assignee
4K INTERNATIONAL AS
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 4K INTERNATIONAL AS filed Critical 4K INTERNATIONAL AS
Publication of GB1458549A publication Critical patent/GB1458549A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
    • G01F15/075—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means
    • G01F15/0755—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means involving digital counting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Measuring Volume Flow (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Surgical Instruments (AREA)
  • Testing Relating To Insulation (AREA)
  • Electrotherapy Devices (AREA)
  • Details Of Flowmeters (AREA)

Abstract

1458549 Apparatus for measuring the angle of rotation of a shaft U K INTERNATIONAL AS 24 May 1974 [25 May 1973] 23418/74 Headings G1A and G1N Apparatus for measuring angular rotation of a member comprises a shaft 1 connectable to the member, a closed loop, as 17, bearing, as a signal, a number of cycles of a waveform, being moved along a closed path such that the distance moved is proportional to the angle of rotation of shaft 1 and having adjacent a sensing means 20 giving a signal proportional to the magnitude of the portion of the waveform adjacent to it to a circuit 10, 11, 12, 13, for producing a pulse whenever the waveform amplitude exceeds a certain value. In one embodiment Fig. 1 (not shown), shaft 1 carries a perpendicular and coaxial circular disc (5) of diameter 70mm with one face coated with magnetic material on which 500 cycles of sinusoidal waveforms are recorded. The sensing head (6), 0À05mm from this, consists of polepieces which place the magnetic field perpendicular to a wall generator by means of an air-gap (6') of 0À1mm. In the embodiment of Fig. 3, translucent film 17 runs between discs 14 and 15, the former having teeth meshing with perforations of film 17, whose tension is mantained by spring-loaded roller 18. Circuit 13 is a Schmitt trigger, which gives a square pulse when the signal exceeds a certain value, and feeds an electronic counter 21 and a display, which could indicate quantity of petrol supplied and its price. The angular velocity of the shaft and hence the rate of flow may be measured by counting pulses in unit time.
GB2341874A 1973-05-25 1974-05-24 Apparatus for measuring the angular rotation of a shaft Expired GB1458549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK288573A DK288573A (en) 1973-05-25 1973-05-25

Publications (1)

Publication Number Publication Date
GB1458549A true GB1458549A (en) 1976-12-15

Family

ID=8116785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2341874A Expired GB1458549A (en) 1973-05-25 1974-05-24 Apparatus for measuring the angular rotation of a shaft

Country Status (9)

Country Link
JP (1) JPS50152767A (en)
CH (1) CH573588A5 (en)
DE (1) DE2424307A1 (en)
DK (1) DK288573A (en)
FI (1) FI60936C (en)
FR (1) FR2231005A1 (en)
GB (1) GB1458549A (en)
NO (1) NO141388C (en)
SE (1) SE395965B (en)

Also Published As

Publication number Publication date
SE395965B (en) 1977-08-29
CH573588A5 (en) 1976-03-15
AU6941774A (en) 1975-11-27
FI60936C (en) 1982-04-13
FI60936B (en) 1981-12-31
FI156174A (en) 1974-11-25
NO141388C (en) 1980-02-27
FR2231005A1 (en) 1974-12-20
NO741851L (en) 1974-11-26
NO141388B (en) 1979-11-19
JPS50152767A (en) 1975-12-09
DE2424307A1 (en) 1974-12-19
DK288573A (en) 1975-01-20

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee