FR2242801A2 - Device for measuring vehicle displacement or speed - magnet and coil assembly produces output pulses - Google Patents

Device for measuring vehicle displacement or speed - magnet and coil assembly produces output pulses

Info

Publication number
FR2242801A2
FR2242801A2 FR7332002A FR7332002A FR2242801A2 FR 2242801 A2 FR2242801 A2 FR 2242801A2 FR 7332002 A FR7332002 A FR 7332002A FR 7332002 A FR7332002 A FR 7332002A FR 2242801 A2 FR2242801 A2 FR 2242801A2
Authority
FR
France
Prior art keywords
shaft
speed
magnet
coil assembly
output 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.)
Granted
Application number
FR7332002A
Other languages
French (fr)
Other versions
FR2242801B2 (en
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.)
Jaeger SA
Original Assignee
Jaeger SA
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 Jaeger SA filed Critical Jaeger SA
Priority to FR7332002A priority Critical patent/FR2242801A2/en
Publication of FR2242801A2 publication Critical patent/FR2242801A2/en
Application granted granted Critical
Publication of FR2242801B2 publication Critical patent/FR2242801B2/fr
Granted 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
    • G01P1/00—Details of instruments
    • G01P1/04—Special adaptations of driving means
    • 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
    • G01P3/487—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 rotating magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/125—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets having an annular armature coil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/12—Transversal flux machines

Abstract

The device times the number of revolutions by the motor or the wheels of the vehicle. A rotor is connected to a shaft from which rotational speed is measured and a stator delivers an electrical signal whose frequency is proportional to the angular speed of the shaft and to the number of revolutions turned by the shaft. On the shaft (17) are mounted coaxially, but without inter penetration, a permanent magnet (16) as well as a magnetic core (8) provided with a winding (13) at whose terminals the electrical measuring signal appears. The extremity of the shaft (19) is drawn out so as to lodge in a head (4) fitted into the case (1) housing the device. The head (4) and the shaft extremity are designed to accommodate the ferrale of a flexible shaft.
FR7332002A 1973-09-05 1973-09-05 Device for measuring vehicle displacement or speed - magnet and coil assembly produces output pulses Granted FR2242801A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7332002A FR2242801A2 (en) 1973-09-05 1973-09-05 Device for measuring vehicle displacement or speed - magnet and coil assembly produces output pulses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7332002A FR2242801A2 (en) 1973-09-05 1973-09-05 Device for measuring vehicle displacement or speed - magnet and coil assembly produces output pulses

Publications (2)

Publication Number Publication Date
FR2242801A2 true FR2242801A2 (en) 1975-03-28
FR2242801B2 FR2242801B2 (en) 1976-10-01

Family

ID=9124645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332002A Granted FR2242801A2 (en) 1973-09-05 1973-09-05 Device for measuring vehicle displacement or speed - magnet and coil assembly produces output pulses

Country Status (1)

Country Link
FR (1) FR2242801A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577678A1 (en) * 1985-02-20 1986-08-22 Jaeger Movement transmission unit placed between the gearbox and the dashboard of a motor vehicle
FR2605742A1 (en) * 1986-10-24 1988-04-29 Veglia Borletti Srl TACHOMETER GENERATOR
FR2653222A1 (en) * 1989-10-13 1991-04-19 Jaeger Movement transmitter electrical speed sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577678A1 (en) * 1985-02-20 1986-08-22 Jaeger Movement transmission unit placed between the gearbox and the dashboard of a motor vehicle
FR2605742A1 (en) * 1986-10-24 1988-04-29 Veglia Borletti Srl TACHOMETER GENERATOR
FR2653222A1 (en) * 1989-10-13 1991-04-19 Jaeger Movement transmitter electrical speed sensor

Also Published As

Publication number Publication date
FR2242801B2 (en) 1976-10-01

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