Device for measuring and system for measuring a pressure comprising a pressure sensor
AssigneeSafran Electronics & Defense
InventorsFrancois GUILLOT, Olivier LEBORGNE, Patrice CHETANNEAU
Life of this patent
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Abstract
The invention provides a pressure measurement device comprising a pressure sensor (3) comprising a printed circuit card (4) having a portion that is to be subjected to the pressure for measurement, the printed circuit card having strain detectors (10, 11) mounted on said portion to measure deformation of the printed circuit card under the influence of said pressure. The invention also provides a measurement system including such a device.
Claims18
A device for measuring the pressure of a vehicle tire, the device comprising:
- a sensor comprising a printed circuit card having a portion that is to be subjected to the pressure for measurement, the printed circuit card having strain detectors mounted on said portion to measure deformation of the printed circuit card under the influence of said pressure, the sensor being designed to be secured to the tire of pressure that it is desired to measure;
- and
- a stationary portion subjected to be secured to the vehicle facing a path of the sensor to receive measurements acquired by the sensor;
- the printed circuit card having a first main face and a second main face, the components of the sensor that serve as coupling components between the sensor and the stationary portion of the sensor being arranged on the second main face of said printed circuit card outside the portion that is to be subjected to the pressure for measurement.
The device according to claim 11, wherein the stationary portion and the sensor are coupled together by inductive and capacitive connections.
A system for measuring the pressure of a vehicle tire, the system comprising a measurement device for measuring the pressure of the tire according to any preceding claim and processor means for processing measurements acquired by the measurement device, the processor means being for mounting on the vehicle remotely from the tire, the stationary portion being for securing to the vehicle facing a path of the sensor for receiving measurements acquired by the sensor and for transmitting them to the processor means.
Dependencies are inferred from the claim text.