Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Michelin Recherche Et Technique S.a.

Trw Automotive U.S. LLC

François Alcouffe

Christophe Villien

Denis Duret

Thierry Penot

Xavier Huchard

Jean Crescini

Antonio Viana

Sébastien Dauve

The invention relates to a method for controlling the production of a magnet () using a sensor able to emit a presence signal for a magnetic induction and defining a measuring axis, the magnet () being a permanent magnet with symmetry of revolution, with its axis of revolution being a mechanical axis, the magnet () having a center and a maximum dimension, the method comprising:

Method for controlling the production of a magnet and associated device

A location device is provided, in which the device is configured to be carried by a tire and wheel assembly so as to locate a right or left position of the assembly in a vehicle. The device includes two magnetic sensors with axes of maximum sensitivity; a measurement circuit for measuring a signal across terminals of each of the magnetic sensors, the measurement circuit being able to deliver two periodic signals phase-shifted with respect to one another and each periodic signal being representative of variations in values of a magnetic field detected by a corresponding magnetic sensor during a revolution of the tire and wheel assembly; and a calculation processor programmed to determine, based on the phase shift between the two periodic signals, a direction of rotation of the tire and wheel assembly, and to deduce from the direction of rotation and a direction of travel of the vehicle, a right or left location of the tire and wheel assembly. The two magnetic sensors have their axes of maximum sensitivity oriented in parallel, and in the two magnetic sensors are configured to be placed on the tire and wheel assembly at distinct azimuths.

Device for locating a right or left position of a tire and wheel assembly of a vehicle

An improved shielded magnetometer including a resonant probe containing a magnetically resonating material held in a resonator. The magnetometer has a spherical electromagnetic shield which exhibits improvements in the sensitivity characteristics by removing the effects of interference fields when the magnetometer is rotated about its axis.

Shielded magnetometer

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Grenoble, France

François Alcouffe