FR690299A - Tachometer for motor vehicles - Google Patents

Tachometer for motor vehicles

Info

Publication number
FR690299A
FR690299A FR690299DA FR690299A FR 690299 A FR690299 A FR 690299A FR 690299D A FR690299D A FR 690299DA FR 690299 A FR690299 A FR 690299A
Authority
FR
France
Prior art keywords
tachometer
motor vehicles
vehicles
motor
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
Other languages
French (fr)
Inventor
Gustav Unterberg
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
Application granted granted Critical
Publication of FR690299A publication Critical patent/FR690299A/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
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
    • G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR690299D 1929-12-28 1930-02-20 Tachometer for motor vehicles Expired FR690299A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE690299X 1929-12-28

Publications (1)

Publication Number Publication Date
FR690299A true FR690299A (en) 1930-09-18

Family

ID=6599298

Family Applications (1)

Application Number Title Priority Date Filing Date
FR690299D Expired FR690299A (en) 1929-12-28 1930-02-20 Tachometer for motor vehicles

Country Status (1)

Country Link
FR (1) FR690299A (en)

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