Compact device for measuring the speed and the direction of rotation of an object

The invention concerns a device for measuring the speed and direction of rotation of an object ( 3 ) near to which it is placed. It comprises: a magnetic detection device ( 2 ) that delivers, in response to a rotation of the object ( 3 ) generating a magnetic field variation, signals representative...

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Bibliographische Detailangaben
Hauptverfasser:	FAUR MARIAN, SELLIN JACQUES, PARMENTIER BERNARD
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The invention concerns a device for measuring the speed and direction of rotation of an object ( 3 ) near to which it is placed. It comprises: a magnetic detection device ( 2 ) that delivers, in response to a rotation of the object ( 3 ) generating a magnetic field variation, signals representative of its speed and its direction of rotation, a conductor ( 4 ) intended to be connected to a power source to supply current to the magnetic detection device ( 2 ) at least, current receptor means ( 6 ) placed between the magnetic detection device ( 2 ) and the conductor ( 4 ) that create, from signals coming from said magnetic detection device ( 2 ), a modulation of the current (Iout) flowing in the conductor ( 4 ), said modulated current (Iout) reflecting both the speed and the direction of rotation of the object ( 3 ). Application particularly in the oil industry.