Patent ID: 7926347

Claim:
A method for monitoring a sensor arrangement comprising a vibration gyroscope which constitutes a resonator and forms a part of at least one control circuit which feeds an exciter signal at a natural frequency to excite the vibration gyroscope, wherein an output signal is tapable from the vibration gyroscope and the exciter signal is derived from said output signal by filtering and amplification, the method comprising: calculating a first value of a change in temperature compared to a measurement from a difference between a current value of the natural frequency and a value of the natural frequency previously measured during an adjustment, stored in a memory and measured at a reference temperature, and from a temperature coefficient of the natural frequency; calculating a second value of the change in temperature compared to the measurement from the difference between output variables of a temperature sensor at a current temperature, the reference temperature stored in the memory and the temperature coefficient of the temperature sensor; comparing the first calculated value and the second calculated value; and generating a fault signal when a deviation which exceeds a predefined amount occurs.