FR2404224A1 - Analogue and numerical indication of rotational speed - employs alternator driving motor which provides pointer and totaliser drive - Google Patents

Analogue and numerical indication of rotational speed - employs alternator driving motor which provides pointer and totaliser drive

Info

Publication number
FR2404224A1
FR2404224A1 FR7728833A FR7728833A FR2404224A1 FR 2404224 A1 FR2404224 A1 FR 2404224A1 FR 7728833 A FR7728833 A FR 7728833A FR 7728833 A FR7728833 A FR 7728833A FR 2404224 A1 FR2404224 A1 FR 2404224A1
Authority
FR
France
Prior art keywords
drive
provides
pointer
totaliser
analogue
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.)
Granted
Application number
FR7728833A
Other languages
French (fr)
Other versions
FR2404224B1 (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.)
Jaeger SA
Original Assignee
Jaeger 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 Jaeger SA filed Critical Jaeger SA
Priority to FR7728833A priority Critical patent/FR2404224A1/en
Priority to DE19787823595 priority patent/DE7823595U1/en
Publication of FR2404224A1 publication Critical patent/FR2404224A1/en
Application granted granted Critical
Publication of FR2404224B1 publication Critical patent/FR2404224B1/fr
Granted 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
    • G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
    • G01P3/495—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field
    • 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
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers

Abstract

An analogue and numerical indication of rotational speed is obtained from a tachometric system utilising a three phase alternator to drive a three phase motor. Motor output provides a pointer drive and a numerical totaliser drive. A three phase alternator (1) coupled (2) to shaft under measurement drives three phase motor (3) autosynchronously. Motor drives measurement magnet (4) which in turn drives a non-magnetic disc (5) whose axle shaft (7) provides drive for a pointer (8) via a spiral spring (6). The pointer provides an indication against a dial (9) while gearing (10, 11) from a shaft (7) provides drive for counter drums (14) for numerical display.
FR7728833A 1977-09-23 1977-09-23 Analogue and numerical indication of rotational speed - employs alternator driving motor which provides pointer and totaliser drive Granted FR2404224A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7728833A FR2404224A1 (en) 1977-09-23 1977-09-23 Analogue and numerical indication of rotational speed - employs alternator driving motor which provides pointer and totaliser drive
DE19787823595 DE7823595U1 (en) 1977-09-23 1978-08-07 DEVICE FOR INDEPENDENT SPEED MEASUREMENT WITH ANALOGUE AND NUMERICAL DISPLAY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7728833A FR2404224A1 (en) 1977-09-23 1977-09-23 Analogue and numerical indication of rotational speed - employs alternator driving motor which provides pointer and totaliser drive

Publications (2)

Publication Number Publication Date
FR2404224A1 true FR2404224A1 (en) 1979-04-20
FR2404224B1 FR2404224B1 (en) 1981-06-19

Family

ID=9195747

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728833A Granted FR2404224A1 (en) 1977-09-23 1977-09-23 Analogue and numerical indication of rotational speed - employs alternator driving motor which provides pointer and totaliser drive

Country Status (2)

Country Link
DE (1) DE7823595U1 (en)
FR (1) FR2404224A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106671779A (en) * 2016-12-22 2017-05-17 滁州市康达叉车零部件制造有限公司 Automatic zero resetting type forklift gauge head
CN109458307A (en) * 2018-12-21 2019-03-12 沈阳航空航天大学 A kind of wind energy conversion system pneumatic efficiency and system generating efficiency synchronous measuring apparatus and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106671779A (en) * 2016-12-22 2017-05-17 滁州市康达叉车零部件制造有限公司 Automatic zero resetting type forklift gauge head
CN109458307A (en) * 2018-12-21 2019-03-12 沈阳航空航天大学 A kind of wind energy conversion system pneumatic efficiency and system generating efficiency synchronous measuring apparatus and method
CN109458307B (en) * 2018-12-21 2023-08-08 沈阳航空航天大学 Synchronous measuring device and method for pneumatic efficiency and system power generation efficiency of wind turbine

Also Published As

Publication number Publication date
FR2404224B1 (en) 1981-06-19
DE7823595U1 (en) 1979-02-15

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse