Patent ID: 7009167

Claim:
A method of adjusting the sensitivity of an optronic fuse system which comprises a transmitter, a receiver, an amplifier chain, and a sensor connected ahead of the receiver and of the amplifier chain; comprising a calibration cycle, with the steps of: (a) measuring a signal level during operation of the system; (b) adjusting the sensitivity of the optronic fuse system by setting only the sensitivity of the sensor; (c) storing a gain factor which is dependent upon said measured signal level into a controller for setting the sensitivity of said sensor, said sensor comprising an avalanche-photodiode (APD), said avalanche-photodiode having a bias voltage which is set by the controller; and (d) implementing a temperature compensation during the operation of the optronic fuse system commencing from a working point in a temperature curve for the avalanche-photodiode which corresponds to a specified reference sensitivity.