Optical system
AssigneeEndress+Hauser Conducta GmbH+Co. KG
InventorsThilo Krätschmer, Frank Müller, Alejandro Vaca-Torres
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Abstract
The invention relates to an optical system for measuring the absorption of light in a medium, comprising at least one light source for sending light and at least one optical detector, which receives the light and converts it into an electrical signal. The system is characterized in that the system comprises at least one light guide, wherein, in the region of the light source, light is coupled as reference light into the light guide, wherein the light guide is guided, at least in sections, past the medium, and wherein the light guide guides the reference light onto the detector.
Claims9
An optical system for measuring the absorption of light in a medium, comprising:
- a cuvette embodied to contain the medium;
- a light source for sending light, wherein the light source is configured to radiate light as measurement light into the medium in the cuvette;
- an optical detector embodied to receive the light and to convert the received light into an electrical signal;
- a first light guide, wherein, in the region of the light source, the first light guide is embodied to couple light as reference light into the first light guide and to guide the reference light past the cuvette and onto the optical detector;
- and
- a light selector configured to switch the light of the light source between measurement light and reference light, wherein the light selector is disposed between the light source and the cuvette and also between the light source and the first light guide,
- wherein the first light guide is further embodied to guide the measurement light onto the detector after absorption in the medium in the cuvette.
Dependencies are inferred from the claim text.