| 摘要 |
<p>For use with a torque sensor including a pair of coils (11,12) in which inductance is changed in opposite directions corresponding to torque and a torque detecting means for outputting a torque detection voltage from both voltages based on a change in inductance of each of the pair of the coils, the abnormality detecting device (40) comprises: a pair of filter circuits (43,44) for extracting the DC component of each voltage based on the pair of the coils and change in each inductance, a differential amplifier (47) outputting a difference in voltage of the DC voltage outputted from each of the filter circuits as the abnormality detection voltage, a memory means for memorizing a normal tolerance range preliminarily set up about the abnormality detection voltage of the differential means and a determining means for determining whether or not the abnormality detecting voltage outputted by the differential means is in the normal tolerance range memorized by the memory means. <IMAGE></p> |
