An electronic circuit (12) connected to a variable-excitation sensor (24) and comprising:a digital envelope detector (20) arranged to acquire signal that is produced by the sensor in response to an excitation signal, the detector comprising:an analog-to-digital converter (22) arranged to sample the measurement signal in such a manner as to produce sample points during successive observation windows of duration T that comprise a number NS of sample points, the sample points being spaced apart by a sampling period TS, the sampling period TS and the duration T being such that:TS=NP·T0+(NT/NS)·T0 and T=NS·TS,where T0 is one excitation period of the excitation signal, where NP, NT, and NS are non-zero natural integers, and where NT is not a multiple of NS.
MEASUREMENT METHOD WITH SYNCHRONOUS SUBSAMPLING
2022-06-16
Patent
Electronic Resource
English
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