G - Physics – 01 – D
Patent
G - Physics
01
D
G01D 3/02 (2006.01)
Patent
CA 2320484
An electronic circuit dynamically compensates a sensor output signal subject to varying conditions. In particular, the circuitry dynamically determines the DC offset level of an incoming sensor analog outptu signal. The DC amplitude or offset level varies as a result of changing conditions, such as speed, airgap, alignment and temperature. The circuitry compares the DC offset level with the original sensor analog output signal by way of a comparator to provide a digital output signal with a zero DC offset, which compensates for the varying conditions.
Cette invention se rapporte à un circuit électronique qui compense de façon dynamique un signal de sortie de capteur soumis à des conditions variables. Ce circuit détermine plus particulièrement, de façon dynamique, le niveau de décalage en continu d'un signal de sortie analogique de capteur entrant. Le niveau d'amplitude ou de décalage en continu varie en fonction de conditions changeantes, telles que la vitesse, l'entrefer, l'alignement et la température. Ledit circuit compare le niveau de décalage en continu avec le signal de sortie analogique de capteur d'origine au moyen d'un comparateur, afin de fournir un signal de sortie numérique ayant un décalage en continu égal à zéro qui compense les variations des conditions en question.
Austin Mark W.
Wolf Ronald J.
Durakool Incorporated
Macrae & Co.
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