Device For Counting the Rotations of an Object in a Referential, and Method For Controlling One Such Device
First Claim
1. A device for counting rotations of an object in a frame of reference, wherein a magnetic sensor connected to the object measures a field associated with the frame of reference in order to generate measurement signals at the rotation frequency of the object,wherein the sensor also operates as an antenna for receiving electromagnetic waves.
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Accused Products
Abstract
A device for counting rotations of an object in a referential, in which a magnetic sensor linked to the object measures a field associated with the referential in order to generate measuring signals at the rotational frequency of the object. The sensor also functions as an antenna for receiving an electromagnetic wave. A method for controlling a counting device includes receiving measurement signals and a radio-frequency triggering signal from a sensor and sending information representative of the numbering cycles in the measurement signals.
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Citations
11 Claims
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1. A device for counting rotations of an object in a frame of reference, wherein a magnetic sensor connected to the object measures a field associated with the frame of reference in order to generate measurement signals at the rotation frequency of the object,
wherein the sensor also operates as an antenna for receiving electromagnetic waves.
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11. A method of controlling a device for counting rotations of an object in a frame of reference, comprising the following steps;
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receiving measurement signals at the rotation frequency of the object by means of a magnetic sensor linked to the object; determining the number of cycles in said the measurement signals; receiving a radio-frequency triggering signal by means of the magnetic sensor operating as an electromagnetic antenna; and sending information representative of the number of cycles.
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Specification