| 摘要 |
The invention concerns a system for determining at least one parameter of at least one member ( 1 ) rotating with respect to a fixed structure ( 2 ), comprising, for each rotating member ( 1 ), an assembly comprising a transponder ( 3 ), a code ( 5 ) comprising a reference singularity, a sensor ( 6 ) able to deliver a signal comprising a reference pulse corresponding to the detection of the reference singularity, a device ( 4 ) for detecting the parameter or parameters issuing from the transponder ( 3 ) and a device for measuring the speed of rotation of the rotating member ( 1 ); the said system also comprising an activation device ( 7 ) which is connected to each sensor ( 6 ), to each detection device ( 4 ) and to each speed measurement device, the said activation device being able, when a reference pulse issuing from the sensor ( 6 ) of an assembly is recorded, to activate the detection device ( 4 ) of the assembly at a moment which is a function of the indexed position of the transponder ( 3 ) and of the measured speed, so that the transponder ( 3 ) of the assembly is in the transmission/reception cone of the communication means of the said detection device.
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