AN APPARATUS FOR DETECTING THE MALFUNCTIONING OF AN ACCELEROMETER

摘要

An apparatus for detecting the malfunctioning of an accelerometer (4), where a test signal in form of a pulse is transmitted from a test signal generator (3) to the accelerometer (4) by means of a change-over switch (1, 2) capable of performing a change in such a manner that the response signal from the accelerometer (4) can be transmitted to an analyzing circuit (8) so as to be subjected to a malfunction detection. The change-over switch (1, 2) is adapted to alternately connect the accelerometer (4) either to the test signal generator (3) or to the analyzing circuit (8). In this manner a particularly simple circuit is obtained where the fact is utilized that the response signal in form of a ringing is not selected until the pulse has been transmitted.