Refractometer
AssigneeTesto AG
InventorsMarkus Langenbacher, Andreas Derr, Frank Eder
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Abstract
The invention relates to a portable refractometer comprising a depression (7) for samples, located on an insertion tip (11) in such a way that once the insertion tip (11) has penetrated a liquid or a fruit, a sufficient quantity of the sample liquid remains in the depression (7) for samples, thus wetting a measuring surface (4) that is delimited in said depression by a transparent body. The refractive index of the wetting liquid can be determined by measuring the intensity of an optical beam that is reflected by the measuring surface (4).
Claims16
A refractometer for determining the refractive index of a liquid and variables derived therefrom, comprising:
- a sensor system, said sensor system including:
- a radiation source for generating a measuring beam, and
- a beam detector for detecting the measuring beam, the measuring beam running from the radiation source to a measuring surface to be wetted by the liquid, at least a portion of the measuring beam being reflected at said measuring surface and detected by the beam detector, wherein the measuring surface is situated in a depression for samples of an insertion probe which is insertable into the liquid.
Dependencies are inferred from the claim text.