Safran Electronics & Defense

Safran Landing Systems

Didier Levavasseur

Joël Zabulon

Thierry Bickard

Joel Zabulon

Olivier Dages

Stéphanie Nocente

An electronic circuit () connected to a variable-excitation sensor () and comprising:

Measurement method with synchronous subsampling

A measurement device for measuring an angular position of a movable body that is rotatable about an axis of rotation relative to a stationary body, the device comprising, facing each other, a movable portion with a first printed circuit having first tracks formed thereon defining a plurality of target patterns and a stationary portion with a second printed circuit having second tracks formed thereon defining a plurality of measurement patterns that are angularly distributed in regular manner. The target patterns are angularly distributed in irregular manner, the number of target patterns is not less than two, and the product of the number of target patterns multiplied by the number of measurement patterns is not less than twelve.

Device for measuring an angular position of a movable body relative to a stationary body

A measurement device for measuring the pressure of a wheel () of a vehicle, the measurement device comprising a stationary portion () and a movable portion () for being driven in rotation by the wheel, the stationary portion including a first printed circuit () having at least one first track formed thereon defining a first winding, the movable portion including a second printed circuit () having at least one second track formed thereon defining a second winding, the second printed circuit being arranged to be connected to a pressure sensor (), the first winding and the second winding being coupled together to form a wireless communication channel, the measurement device being arranged in such a manner that the pressure sensor is electrically powered by the stationary portion via the wireless communication channel, and in such a manner that uplink data comprising pressure measurement data is transmitted to the stationary portion () by the movable portion () via the wireless communication channel.

Device for measuring tire pressure without a battery

Method for managing the energy in a system for verifying the inflation pressure of the tires of an aircraft, consisting in measuring, by a pressure sensor, at least one inflation pressure of each of the tires, obtaining a unique identification data relating to each of the tires, and sending via the wireless communication link the measurements and data thus collected to a processing unit disposed in or out of the aircraft for them to be available to a pilot or a maintenance operator, the step of sending the measurements and data being carried out in an acyclic manner as a function of a trigger signal given by a motion detector that detects the motion of the wheels of the aircraft as long as the speed is lower than a predetermined maximum speed.

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Boulogne-Billancourt, France

Didier Levavasseur