Patent ID: 9719921
Date: 2017-08-01
CPC Classifications: G01N

Claim:
1. A method for adjusting, calibrating or function checking of a turbidity sensor, comprising the steps: providing a solid body that is transparent for light of at least a first wavelength, wherein the solid body contains a first region, the first region containing plurality of microcracks, and wherein the first region is assigned a turbidity value; providing a turbidity sensor comprising a light transmitting unit and at least one light receiving unit; positioning the solid body on the turbidity sensor; transmitting light of the first wavelength from the light transmitting unit into the first region of the solid body, whereby the light is scattered by the microcracks in the first region; receiving with at least one light receiving unit light scattered by the microcracks in the first region; measuring a turbidity value from the received light; comparing the measured turbidity value with the assigned turbidity value of the first region; and adjusting, calibrating, or function testing the turbidity sensor based on comparing the measured turbidity value with the assigned turbidity value.