GB1226149A - - Google Patents

Info

Publication number
GB1226149A
GB1226149A GB1226149DA GB1226149A GB 1226149 A GB1226149 A GB 1226149A GB 1226149D A GB1226149D A GB 1226149DA GB 1226149 A GB1226149 A GB 1226149A
Authority
GB
United Kingdom
Prior art keywords
transducer
pass
measuring
blades
oct
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
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 filed Critical
Publication of GB1226149A publication Critical patent/GB1226149A/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
    • G01P3/48—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
    • 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
    • G01P3/489—Digital circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1,226,149. 226, 149. Measuring rotational speed, electrically. UNITED AIRCRAFT CORP. Oct. 2, 1968 [Oct. 9, 1967], No. 46796/68. Heading G1N. [Also in Division G4] In apparatus for measuring the rotational speed of a turbine shaft by measuring the frequency at which the turbine compressor blades 12, which are electrically conductive, pass a transducer 10 mounted on the housing 14, the transducer 10 comprises a permanent magnet 28 mounted on a central magnetic core 24 within a magnetic housing 18 to form a magnetic circuit having an air gap that the blades 12 pass through and a pick-up coil 32 wound on the core 24 for detecting changes in flux caused by eddy currents induced in the blades as they pass the transducer. The frequency is measured by counting the number of pulses produced between successive gate pulses, motor 60 adjusting the indicator 64 if the result of a count differs from the result of the next previous count.
GB1226149D 1967-10-09 1968-10-02 Expired GB1226149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67376167A 1967-10-09 1967-10-09

Publications (1)

Publication Number Publication Date
GB1226149A true GB1226149A (en) 1971-03-24

Family

ID=24704016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226149D Expired GB1226149A (en) 1967-10-09 1968-10-02

Country Status (5)

Country Link
DE (1) DE1801421B2 (en)
FR (1) FR1588316A (en)
GB (1) GB1226149A (en)
IL (1) IL30840A0 (en)
SE (1) SE336065B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4895536A (en) * 1972-02-25 1973-12-07
DE3701467A1 (en) * 1987-01-20 1988-07-28 Elektroteile Gmbh Magneto-electrical velocity pick up
WO2005012919A1 (en) * 2003-07-25 2005-02-10 Honeywell International Inc. Magnetoresistive turbocharger compressor wheel speed sensor
GB2408802A (en) * 2003-12-03 2005-06-08 Weston Aerospace Eddy current sensors
WO2005054873A1 (en) * 2003-12-05 2005-06-16 Pratt & Whitney Canada Corp. Rotation sensor and sensing method
US8043047B2 (en) 2006-01-25 2011-10-25 Siemens Vdo Automotive Ag Compressor casing for an exhaust gas turbocharger
US9513308B2 (en) 2012-12-28 2016-12-06 Hanwha Corporation Muzzle velocity measuring apparatus and method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1254335A (en) * 1969-05-13 1971-11-17 Hobson Ltd H M Speed probe for gas turbine engines
US4384252A (en) * 1979-05-11 1983-05-17 The Bendix Corporation Cup shaped magnetic pickoff for use with a variable reluctance motion sensing system
DE4035385C2 (en) * 1990-11-07 1994-03-03 Zinser Textilmaschinen Gmbh Method and device for determining yarn breakage at spinning positions of a ring spinning or twisting machine
DE19623236C2 (en) * 1996-06-11 2000-03-09 Horn E Dr Gmbh Turbocharger measuring arrangement for measuring the speed of the turbocharger
DE102013215604A1 (en) * 2013-08-07 2015-02-12 BSH Bosch und Siemens Hausgeräte GmbH Flow meter, rotor and water-conducting household appliance

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4895536A (en) * 1972-02-25 1973-12-07
JPS5843973B2 (en) * 1972-02-25 1983-09-30 ヴイルケ リヒアルト I have no idea what to do and how much I need to do.
DE3701467A1 (en) * 1987-01-20 1988-07-28 Elektroteile Gmbh Magneto-electrical velocity pick up
WO2005012919A1 (en) * 2003-07-25 2005-02-10 Honeywell International Inc. Magnetoresistive turbocharger compressor wheel speed sensor
GB2408802A (en) * 2003-12-03 2005-06-08 Weston Aerospace Eddy current sensors
WO2005054873A1 (en) * 2003-12-05 2005-06-16 Pratt & Whitney Canada Corp. Rotation sensor and sensing method
US8043047B2 (en) 2006-01-25 2011-10-25 Siemens Vdo Automotive Ag Compressor casing for an exhaust gas turbocharger
US9513308B2 (en) 2012-12-28 2016-12-06 Hanwha Corporation Muzzle velocity measuring apparatus and method

Also Published As

Publication number Publication date
DE1801421A1 (en) 1969-08-14
FR1588316A (en) 1970-04-10
SE336065B (en) 1971-06-21
DE1801421B2 (en) 1971-12-23
IL30840A0 (en) 1969-04-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees