GB1221147A - Tachograph - Google Patents

Tachograph

Info

Publication number
GB1221147A
GB1221147A GB1835269A GB1835269A GB1221147A GB 1221147 A GB1221147 A GB 1221147A GB 1835269 A GB1835269 A GB 1835269A GB 1835269 A GB1835269 A GB 1835269A GB 1221147 A GB1221147 A GB 1221147A
Authority
GB
United Kingdom
Prior art keywords
april
drive shaft
signal generator
converter
produce
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
GB1835269A
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.)
Exedy Corp
Original Assignee
Exedy Corp
Daikin Manufacturing Co 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 Exedy Corp, Daikin Manufacturing Co Ltd filed Critical Exedy Corp
Publication of GB1221147A publication Critical patent/GB1221147A/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
    • G01P3/484—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 contact-making switches

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1,221,147. Tachographs. DAIKIN SEISAKUSHO K. K. AND T. UCHIYAMA. April 10, 1969 [April 10, 1968], No.18352/69. Heading G1N. [Also in Division G4] In a tachograph system, a signal generator 3 is interposed between a flexible drive shaft 2 and a mechanical speedometer 1 to produce a signal dependent upon the speed of rotation of the drive shaft. The signal generator may comprise a magnetized disc rotating with shaft 5 and a reed switch, Fig. 2A (not shown) to produce digital signals, the signals being applied to a digital-toanalogue converter 17 and thus to a voltmeter 18 and recorder 19. The converter 17 may be omitted.
GB1835269A 1968-04-10 1969-04-10 Tachograph Expired GB1221147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2342468 1968-04-10

Publications (1)

Publication Number Publication Date
GB1221147A true GB1221147A (en) 1971-02-03

Family

ID=12110103

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1835269A Expired GB1221147A (en) 1968-04-10 1969-04-10 Tachograph

Country Status (4)

Country Link
DE (1) DE1918092A1 (en)
FR (1) FR2006018A1 (en)
GB (1) GB1221147A (en)
SE (1) SE340010B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137176B1 (en) * 1971-05-14 1974-03-08 Aquitaine Petrole

Also Published As

Publication number Publication date
DE1918092A1 (en) 1969-10-23
FR2006018A1 (en) 1969-12-19
SE340010B (en) 1971-11-01

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