Patent ID: 9383317
Filing Date: 2016-07-05
CPC Classification: G01D,G01N

Claim Text:
1. A method for determining substance concentrations in aqueous solutions by means of a fluorescence measurement with an optical sensor, the sensor comprising: a housing; sensor electronics; an optical transmitter; an optical receiver; and a sensor head, which contains a sensitive element and which is adjoined by said housing, said housing containing said sensor electronics; and wherein said sensor head and said housing are separable, wherein different sensor heads having different sensitive elements are connectable to said housing containing said sensor electronics; the method comprising the steps of: irradiating said sensitive element with light from said optical transmitter, wherein said sensor electronics excites said optical transmitter; radiating back a light characteristic by said sensitive element; detecting said back-radiated light characteristic by said optical receiver; forwarding said back-radiated light characteristic from said optical receiver to said sensor electronics; evaluating said back-radiated light characteristic by said sensor electronics, wherein said light characteristics are generated by said different sensitive elements; and recognizing said sensitive element in said sensor head automatically by said sensor electronics by comparing said back-radiated light characteristic with stored measurement data and/or characteristic lines for recognizing said sensitive element.