发明名称 PROCEDE DE DETECTION DE PANNE D'UN CAPTEUR FREQUENTIEL ET CIRCUIT POUR LA MISE EN OEUVRE DE CE PROCEDE
摘要 A method of detecting a fault of a frequency sensor having a bias resistor and associated with a rotary member. The following steps are performed while the rotary member is stationary: injecting into the bias resistor of the sensor inverted alternating signals (S1, S2) comprising at least one first alternation (A1) and at least one second alternation (A2), the first alternation being of amplitude greater than the amplitude of the second alternation; and detecting a frequency of an output signal (S″) from the sensor. A measurement circuit implementing the method is also provided.
申请公布号 FR2953295(B1) 申请公布日期 2012.05.18
申请号 FR20090005844 申请日期 2009.12.02
申请人 SAGEM DEFENSE SECURITE 发明人 GENESTE NICOLAS;ESTEVE GWENAEL
分类号 G01R31/02;G01D18/00 主分类号 G01R31/02
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