Patent ID: 7060979
Filing Date: 2006-06-13
Classification: F16N,G01N

Abstract:
1. A transmission sensor suitable for measuring the turbidity of a fluid, having a first measurement zone which is or can be filled with a fluid, having a second measurement zone which is shorter than the first measurement zone and likewise is or can be filled with fluid, having a housing which has a wall that is transparent for electromagnetic radiation at least in the area of the measurement zones, having at least one transmitter which is arranged in the housing and emits electromagnetic radiation into the measurement zones through an inlet area in the wall, having a first receiver which is arranged in the housing and senses the radiation transmitted through the first measurement zone through a first outlet area in the wall, having a second receiver which is arranged in the housing and senses the radiation transmitted through the second measurement zone through a second outlet area in the wall, having a transmitter carrier in which the transmitter is placed, where the transmitter necessarily assumes a predetermined aligned position, having a receiver carrier into which the receivers are placed, whereby the receivers necessarily assume a predetermined aligned position, having a transmitter carrier holder which necessarily positions the transmitter carrier in the housing in a predetermined position at the inlet area, having a receiver carrier holder which necessarily positions the receiver carrier in the housing in a predetermined position at the outlet areas; wherein the wall has a step in the area of the measurement zones such that wall thickness in the second area is greater than in the first outlet area.