Patent ID: 8938364
Filing Date: 2015-01-20
Classification: G01D,G01R,G06F,Y10T

Abstract:
1. A sensor device, comprising: a conductor board; a sensor module mounted on the conductor board, said sensor module including at least one sensitive element which is sensitive to a variable; a self-test control unit configured to implement at least one self-test program, wherein the self-test control unit is configured to apply a self-test variable to the sensitive element, taking the at least one self-test program into account; a detection unit configured to (a) detect a characteristic of the sensitive element altered as a result of the applied self-test variable, and (b) provide a self-test response, taking the altered characteristic into account; and a comparator unit configured to (a) compare the self-test response to at least one specified setpoint self-test response, and (b) provide comparative information, taking into account the comparison of the self-test response to the at least one setpoint self-test response, wherein the comparator unit is provided one of on or in the sensor module, wherein the detection unit determines a first difference from a first self-test signal and a second self-test signal, and determines a second difference from the first self-test signal and a third self-test signal, wherein each of the self-test signals correspond to the self-test variable applied to the sensitive element, wherein the comparator unit compares the first difference and the second difference to the at least one setpoint self-test response.