ES407677A1 - Device for measuring shaft rpm - Google Patents

Device for measuring shaft rpm

Info

Publication number
ES407677A1
ES407677A1 ES407677A ES407677A ES407677A1 ES 407677 A1 ES407677 A1 ES 407677A1 ES 407677 A ES407677 A ES 407677A ES 407677 A ES407677 A ES 407677A ES 407677 A1 ES407677 A1 ES 407677A1
Authority
ES
Spain
Prior art keywords
motor
count
gate
ring counter
speed
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
ES407677A
Other languages
Spanish (es)
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.)
Lumenition Ltd
Original Assignee
Lumenition 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 Lumenition Ltd filed Critical Lumenition Ltd
Publication of ES407677A1 publication Critical patent/ES407677A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/08—Output circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • 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
    • G01P3/486—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 delivered by photo-electric detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Supercharger (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Optical Transform (AREA)

Abstract

Apparatus for measuring the rotational speed of motors, characterized by the fact that it comprises means for generating a voltage in the form of a square wave having two voltage states, in synchronism with the revolutions of the motor, whose signal: interval ratio is constant at any engine speed; gate means allowing pulses to pass only for a predetermined time; a ring counter to count impulses that have passed through the gate; and means for displaying the count of the ring counter so as to provide a visual indication of the speed of rotation of the motor. (Machine-translation by Google Translate, not legally binding)
ES407677A 1971-10-06 1972-10-06 Device for measuring shaft rpm Expired ES407677A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4647971 1971-10-06

Publications (1)

Publication Number Publication Date
ES407677A1 true ES407677A1 (en) 1975-10-16

Family

ID=10441437

Family Applications (1)

Application Number Title Priority Date Filing Date
ES407677A Expired ES407677A1 (en) 1971-10-06 1972-10-06 Device for measuring shaft rpm

Country Status (10)

Country Link
JP (1) JPS4846371A (en)
AU (1) AU460869B2 (en)
BR (1) BR7206983D0 (en)
CA (1) CA990381A (en)
DE (1) DE2248917A1 (en)
ES (1) ES407677A1 (en)
FR (1) FR2156067B1 (en)
GB (1) GB1351049A (en)
IT (1) IT966209B (en)
SE (1) SE378458B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724490B2 (en) * 1973-10-17 1982-05-25
DE2404081C2 (en) * 1974-01-29 1982-05-06 Waldemar Linköping Lester Device for optically scanning the speed of a rotating component, for example a vehicle wheel
JPS5111084U (en) * 1974-07-10 1976-01-27
JPS5638466Y2 (en) * 1976-07-20 1981-09-08
AT354764B (en) * 1976-08-13 1979-01-25 Licentia Gmbh MAGNETIC TAPE DEVICE
JPS5847030B2 (en) * 1977-03-30 1983-10-20 松下電器産業株式会社 Rotating body rotation speed display device
JP3133310B2 (en) * 1989-11-10 2001-02-05 旭光学工業株式会社 Laser printer control device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053444A (en) * 1900-01-01
GB1027976A (en) * 1963-12-12 1966-05-04 Albano Inico Armando An indicating tachometer for vehicles with igniting lamps arranged to correspond to the dial reading
GB1089300A (en) * 1963-12-24 1967-11-01 Crypton Equipment Ltd Electrical apparatus for measuring the rotational speed of engines
US3517258A (en) * 1966-10-31 1970-06-23 Ibm Solid state display device using light emitting diodes
FR1589126A (en) * 1968-09-04 1970-03-23

Also Published As

Publication number Publication date
SE378458B (en) 1975-09-01
GB1351049A (en) 1974-04-24
AU4744572A (en) 1974-04-11
JPS4846371A (en) 1973-07-02
DE2248917A1 (en) 1973-04-12
IT966209B (en) 1974-02-11
FR2156067B1 (en) 1975-03-14
AU460869B2 (en) 1975-05-08
BR7206983D0 (en) 1973-09-25
CA990381A (en) 1976-06-01
FR2156067A1 (en) 1973-05-25

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