METHOD FOR MONITORING THE FUNCTIONING OF SENSORS

摘要

The invention relates to a method for monitoring the function of sensors, fo r example electrochemical, electrophysical or optical sensors, used to measure and monitor condition parameters of liquids or gases, in particular in the field of process measurement technology. According to said method, the senso r is switched to a test mode at periodic intervals and test parameters are recorded, or said test parameters are recorded at periodic intervals in the course of the measured value recording process. The recorded parameters are stored and to monitor the function of the sensors a subsequent temporal progression of the stored test parameters is evaluated. The future progressi on of the expected sensor behaviour is predicted from said evaluation and information concerning the duration of the remaining faultless operation of the sensor is obtained.