FR721623A - Speedometer devices - Google Patents

Speedometer devices

Info

Publication number
FR721623A
FR721623A FR721623DA FR721623A FR 721623 A FR721623 A FR 721623A FR 721623D A FR721623D A FR 721623DA FR 721623 A FR721623 A FR 721623A
Authority
FR
France
Prior art keywords
speedometer
devices
speedometer devices
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)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR721623A publication Critical patent/FR721623A/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
    • G01P1/00—Details of instruments
    • G01P1/006—Details of instruments used for thermal compensation
    • 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)
FR721623D 1930-08-18 1931-08-18 Speedometer devices Expired FR721623A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US721623XA 1930-08-18 1930-08-18

Publications (1)

Publication Number Publication Date
FR721623A true FR721623A (en) 1932-03-05

Family

ID=1544824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR721623D Expired FR721623A (en) 1930-08-18 1931-08-18 Speedometer devices

Country Status (1)

Country Link
FR (1) FR721623A (en)

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