System and method for determining at least one parameter of at least one rotating member by means of a position signal
First Claim
1. A system for determining at least one parameter of at least one member rotating with respect to a fixed structure, the system comprising, for each rotating member, an assembly comprising:
- a transponder rotationally fixed to the rotating member, the transponder being able to measure the parameter or parameters to be determined;
a coder rotationally fixed to the rotating member;
a sensor fixed to the fixed structure, the sensor being disposed opposite to and at a reading distance from the coder, the sensor comprising an electronic circuit able to deliver a signal representing the angular position of the coder with respect to the fixed structure;
a detection device for detecting the parameter or parameters issuing from the transponder, the detecting device being fixed to the fixed structure and comprising a communication means able to transmit an excitation signal to the transponder and to receive the measurement or measurements; and
a synchronisation unit connected to each sensor and to each detection device, the unit comprising a determining device for determining an activation position of the detection device of an assembly when the transponder of the assembly is in the transmission/reception cone of the communication means of the detection device, and an activation device that is able, by comparing the position of the coder with the activation position, to activate the detection device of the assembly in order to measure the parameter or parameters.
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Accused Products
Abstract
A system for determining at least one parameter of at least one member rotating with respect to a fixed structure, the system including, for each rotating member, an assembly having a transponder, a coder, a position sensor, and a device for detecting the parameter or parameters issuing from the transponder. The system also includes a synchronisation unit connected to each sensor and to each detection device. The synchronisation unit including a device for determining an activation position of the detection device of an assembly when the transponder of the assembly is in the transmission/reception cone of the communication mechanism of the detection device, and an activation device that is able, by comparing the position of the coder with the activation position, to activate the detection device of the assembly in order to measure the parameter or parameters.
19 Citations
15 Claims
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1. A system for determining at least one parameter of at least one member rotating with respect to a fixed structure, the system comprising, for each rotating member, an assembly comprising:
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a transponder rotationally fixed to the rotating member, the transponder being able to measure the parameter or parameters to be determined; a coder rotationally fixed to the rotating member; a sensor fixed to the fixed structure, the sensor being disposed opposite to and at a reading distance from the coder, the sensor comprising an electronic circuit able to deliver a signal representing the angular position of the coder with respect to the fixed structure; a detection device for detecting the parameter or parameters issuing from the transponder, the detecting device being fixed to the fixed structure and comprising a communication means able to transmit an excitation signal to the transponder and to receive the measurement or measurements; and a synchronisation unit connected to each sensor and to each detection device, the unit comprising a determining device for determining an activation position of the detection device of an assembly when the transponder of the assembly is in the transmission/reception cone of the communication means of the detection device, and an activation device that is able, by comparing the position of the coder with the activation position, to activate the detection device of the assembly in order to measure the parameter or parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification