METHOD FOR DETERMINING A MEASURED VARIABLE OF A MEDIUM, ESPECIALLY FOR TURBIDITY MEASUREMENT

摘要

Method for determining a measured value of a measured variable of a medium, by means of an optical sensor arrangement, which has at least one transmitter and at least one receiver, comprising the steps as follows: supplying the at least one transmitter with an exciter signal for producing an optical transmitter signal with a transmission signal strength, wherein the transmitter signal is converted by interaction with the medium as a function of the measured variable into a changed transmitter signal; producing a receiver signal from the transformed transmitter signal by means of the at least one receiver and registering a receiver signal strength of the receiver signal; conforming an excitation signal strength of the exciter signal based on the registered receiver signal strength for reaching a predetermined receiver signal strength; and registering the excitation signal strength required for reaching the predetermined receiver signal strength and determining the measured value therefrom.