Patent ID: 9488581
Filing Date: 2016-11-08
CPC Classification: G01J,G01N

Claim Text:
1. A measuring device, comprising: at least one light source for transmitting light; at least one light receiver for receiving light; said light receiver transduces received light into an electrical, measured variable; an optical sensor element, said optical sensor element is located at least partially in contact with the medium and converts transmitted light into received light; and at least one data processing unit for operating and controlling said at least one light source and/or for processing the electrical, measured variable into the process variable; and a light conductor, wherein: said light conductor connects said at least one light source with said optical sensor element, and said optical sensor element with said light receiver; said light conductor is embodied with at least three arms and has a first arm, a second arm and a third arm; said first arm is arranged at said at least one light source in such a manner that transmitted light enters into said first arm; said second arm is arranged at said light receiver in such a manner that received light from the second arm enters into said light receiver; said third arm is arranged at said optical sensor element in such a manner that transmitted light from said third arm strikes the optical sensor element and received light from said optical sensor element enters into said third arm; and said first arm and said second arm combine to form said third arm; wherein: the measuring device includes a sensor-side component and a transmitter-side component; the arrangement is positioned on/in said sensor-side component; energy is transmitted unidirectionally from said transmitter-side component to said sensor-side component and data are transmitted bidirectionally; said sensor-side component and said transmitter-side component are coupled with one another via a galvanically isolated connection or said sensor-side component and said transmitter-side component are galvanically coupled and are connected with a control system via a galvanically isolated connection.