Laser spectrophotometer

Abstract

The invention discloses a laser spectrophotometer. The laser spectrophotometer comprises a light splitting disc, an absorption tank and a detector, wherein the light splitting disc comprises a plurality of single-color laser devices; the plurality of single-color laser devices are arranged on the light splitting disc at intervals along the circumference, so that the switching of the single-color laser devices is realized through rotating the light splitting disc; the absorption tank is used for storing a test sample to be measured; the absorption tank is arranged at the rear end of the light splitting disc; the detector is arranged at the rear end of the absorption tank so that one single-color laser device in the light splitting disc emits laser and the laser passes through the absorption tank to reach the detector; and the detector is used for detecting relative parameters of the laser passing through the absorption tank. The invention provides the laser spectrophotometer which is used for measuring through the rotary single-color laser devices; and by taking a plurality of monochromatic light with relatively good coherence as a measurement light source, the disadvantage that the measurement precision of a spectrophotometer in the prior art is not high is improved, and the laser spectrophotometer has relatively wide applicability and practical value.

Description

technical field [0001] The invention relates to a laser spectrophotometer, in particular to a laser spectrophotometer for measuring by a rotating monochromatic laser. Background technique [0002] Spectrophotometers are of great value in modern technology. In the world, 20% to 30% of the analytical workload is done with spectrophotometers. In my country, the spectrophotometer plays a more dominant role in scientific research and production, and plays a pivotal role in all aspects of the national economy. Its social and economic benefits far exceed the output value created by the instrument. In view of the importance of this type of instrument in the national economy, it is listed in the catalogue of work measuring instruments for compulsory verification of the People's Republic of China. [0003] The photometer according to the present invention is mainly a spectrophotometer for analysis, which analyzes the chemical composition and content of a substance by using the absor...

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a laser spectrophotometer for measurement by a rotating monochromatic laser, and to improve the prior art by using a plurality of monochromatic lights with better coherence as the measurement light source The disadvantage of low measurement accuracy of spectrophotometer has wider applicability and practical value

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