GB781363A - Frequency-measuring device - Google Patents

Frequency-measuring device

Info

Publication number
GB781363A
GB781363A GB34028/55A GB3402855A GB781363A GB 781363 A GB781363 A GB 781363A GB 34028/55 A GB34028/55 A GB 34028/55A GB 3402855 A GB3402855 A GB 3402855A GB 781363 A GB781363 A GB 781363A
Authority
GB
United Kingdom
Prior art keywords
shaft
frequency
measuring device
meter
juselius
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
GB34028/55A
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.)
NILS GOSTA HJALMAR LINDHOLM
Original Assignee
NILS GOSTA HJALMAR LINDHOLM
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 NILS GOSTA HJALMAR LINDHOLM filed Critical NILS GOSTA HJALMAR LINDHOLM
Publication of GB781363A publication Critical patent/GB781363A/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
    • G01P3/42—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
    • G01P3/488—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 variable reluctance detectors
    • 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
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage

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

781,363. Electric measuring systems. LINDHOLM, N. G. H., and JUSELIUS, S. O. Nov. 28, 1955 [Dec. 17, 1954], No. 34028/55. Class 40 (1). The speed of rotation of a shaft 10 is determined by an inductive pick-up comprising a coil 2 wound on a magnetized core 3 located near to the shaft so that any irregularity in the surface, e.g. a keyway 11 or a projection 12, produces a pulse in winding 2 for each revolution, which is rectified at 6 and averaged by a meter 7. The meter scale is adjusted by a series potentiometer 4 in parallel with a capacitor 5.
GB34028/55A 1954-12-17 1955-11-28 Frequency-measuring device Expired GB781363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE781363X 1954-12-17

Publications (1)

Publication Number Publication Date
GB781363A true GB781363A (en) 1957-08-21

Family

ID=20336734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34028/55A Expired GB781363A (en) 1954-12-17 1955-11-28 Frequency-measuring device

Country Status (3)

Country Link
FR (1) FR1138008A (en)
GB (1) GB781363A (en)
NL (1) NL202592A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697867A (en) * 1969-06-19 1972-10-10 Cavitron Corp Vibration sensor utilizing eddy currents induced in member vibrating in the field of a magnet
FR2137176A1 (en) * 1971-05-14 1972-12-29 Aquitaine Petrole
US3844168A (en) * 1973-08-03 1974-10-29 Gen Electric Torque measuring apparatus
US4680543A (en) * 1985-02-26 1987-07-14 Societe A Responsabilite Limitee L'electricfil Industrie Pickup having encapsulated electrical and magnetic elements
US6075359A (en) * 1998-04-15 2000-06-13 Echlin Inc. Sensor with ferromagnetic metal sealing cap

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400870A1 (en) * 1984-01-12 1985-07-25 Vdo Adolf Schindling Ag, 6000 Frankfurt INDUCTIVE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697867A (en) * 1969-06-19 1972-10-10 Cavitron Corp Vibration sensor utilizing eddy currents induced in member vibrating in the field of a magnet
FR2137176A1 (en) * 1971-05-14 1972-12-29 Aquitaine Petrole
US3844168A (en) * 1973-08-03 1974-10-29 Gen Electric Torque measuring apparatus
US4680543A (en) * 1985-02-26 1987-07-14 Societe A Responsabilite Limitee L'electricfil Industrie Pickup having encapsulated electrical and magnetic elements
US6075359A (en) * 1998-04-15 2000-06-13 Echlin Inc. Sensor with ferromagnetic metal sealing cap

Also Published As

Publication number Publication date
FR1138008A (en) 1957-06-06
NL202592A (en)

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