FR1148357A - Recording method and device - Google Patents

Recording method and device

Info

Publication number
FR1148357A
FR1148357A FR1148357DA FR1148357A FR 1148357 A FR1148357 A FR 1148357A FR 1148357D A FR1148357D A FR 1148357DA FR 1148357 A FR1148357 A FR 1148357A
Authority
FR
France
Prior art keywords
recording method
recording
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.)
S Smith and Sons Ltd
S Smith and Sons England Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons England 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 S Smith and Sons Ltd, S Smith and Sons England Ltd filed Critical S Smith and Sons Ltd
Application granted granted Critical
Publication of FR1148357A publication Critical patent/FR1148357A/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
    • G01P1/12—Recording devices
    • G01P1/122—Speed recorders
    • G01P1/125—Speed recorders with recording discs
    • 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
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1148357D 1956-05-04 1956-05-04 Recording method and device Expired FR1148357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1148357T 1956-05-04

Publications (1)

Publication Number Publication Date
FR1148357A true FR1148357A (en) 1957-12-06

Family

ID=9646340

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1148357D Expired FR1148357A (en) 1956-05-04 1956-05-04 Recording method and device

Country Status (2)

Country Link
BE (1) BE547309A (en)
FR (1) FR1148357A (en)

Also Published As

Publication number Publication date
BE547309A (en)

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