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GB2014319B - Vehicle speed detection apparatus - Google Patents

Vehicle speed detection apparatus

Info

Publication number
GB2014319B
GB2014319B GB7905844A GB7905844A GB2014319B GB 2014319 B GB2014319 B GB 2014319B GB 7905844 A GB7905844 A GB 7905844A GB 7905844 A GB7905844 A GB 7905844A GB 2014319 B GB2014319 B GB 2014319B
Authority
GB
United Kingdom
Prior art keywords
vehicle speed
detection apparatus
speed detection
vehicle
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
GB7905844A
Other versions
GB2014319A (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.)
LONDON TRANSPORT EXECUTIVE
Original Assignee
LONDON TRANSPORT EXECUTIVE
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 LONDON TRANSPORT EXECUTIVE filed Critical LONDON TRANSPORT EXECUTIVE
Priority to GB7905844A priority Critical patent/GB2014319B/en
Publication of GB2014319A publication Critical patent/GB2014319A/en
Application granted granted Critical
Publication of GB2014319B publication Critical patent/GB2014319B/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
GB7905844A 1977-11-25 1979-02-19 Vehicle speed detection apparatus Expired GB2014319B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7905844A GB2014319B (en) 1977-11-25 1979-02-19 Vehicle speed detection apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4919377 1977-11-25
GB7905844A GB2014319B (en) 1977-11-25 1979-02-19 Vehicle speed detection apparatus

Publications (2)

Publication Number Publication Date
GB2014319A GB2014319A (en) 1979-08-22
GB2014319B true GB2014319B (en) 1982-04-28

Family

ID=26266423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7905844A Expired GB2014319B (en) 1977-11-25 1979-02-19 Vehicle speed detection apparatus

Country Status (1)

Country Link
GB (1) GB2014319B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8407519D0 (en) * 1984-03-22 1984-05-02 Cambridge Electronic Ind Tachogenerators
DE102008056700B4 (en) * 2008-11-11 2013-02-28 Zf Friedrichshafen Ag Speed sensor for determining "slow (zero speed) and fast" speeds as well as for simultaneously determining the direction of rotation
US9482686B2 (en) * 2013-03-13 2016-11-01 Woodward, Inc. Aircraft wheel speed sensor

Also Published As

Publication number Publication date
GB2014319A (en) 1979-08-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee