A non-contact chromaticity detection device and detection method

Abstract

The invention provides a non-contact chromaticity detection device and a detection method, which can be used for carrying out multispectral measurement at the same time, have no pollution on sensors and a liquid to be detected, and overcome the defect of a luminosity electrode in the prior art. The device comprises a transparent reaction container, multispectral light sources arranged right abovethe reaction container or outside a side wall of the reaction container, full-color light sensors for receiving a multispectral light source transmission light, and a multispectral light source switching device with an output end connected with a multispectral light source control end, wherein at least two full-color light sensors are arranged, are simultaneously distributed right below the reaction container or outside the side wall of the reaction container, and are arranged opposite to the multispectral light sources; the multispectral light sources, the full-color light sensors and the reaction containers are arranged in a non-contact way; a signal processing system is connected with output ends of the full-color light sensors, and is used for receiving light signals of multiple channels at the same time.

Description

technical field [0001] The invention relates to liquid phase substance concentration measuring equipment, in particular to a non-contact chromaticity detection device and a detection method. Background technique [0002] In automatic titrators, a photometric electrode is often used as a criterion for the color change of the titration. A light source and a light sensor are integrated on the photometric electrode. When in use, the photometric electrode is inserted into the reaction liquid phase, and the chromaticity change is read from the photometric sensor. The disadvantages of photometric electrodes in the prior art are: [0003] 1. A photometric electrode of one specification in the prior art is only suitable for one optical wavelength; [0004] 2. The volume limitation leads to a short optical path, so it is not sensitive to liquids with small absorbance and close to transparent liquid detection; [0005] 3. The photometric electrode needs to be inserted into the liqui...

AI Technical Summary

Problems solved by technology

[0003] 1. A photometric electrode of one specification in the prior art is only suitable for one optical wavelength;

[0004] 2. The volume limitation results in a short optical path, so it is not sensitive to liquids with low absorbance and close to transparency;

[0005] 3. The photometric electrode needs to be inserted into the liquid, and the cleaning workload is heavy

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