Ultraviolet spectrophotometer detecting head

Abstract

The invention discloses an ultraviolet spectrophotometer, detecting head, and relates to an ultraviolet spectrophotometer. The invention provides a small portable ultraviolet spectrophotometer detecting head which not only has the advantages of small volume, high sensitivity and corrosion resistance, but also can be separated from an instrument host computer and used as soon as being connected, and meet the requirement on real-time detection of fields and sites. The ultraviolet spectrophotometer detecting head is provided with an incident optical fiber, an incident optical fiber connector, a return optical fiber connector, an incident optical fiber collimator, a return optical fiber collimator, a return optical fiber, an upper shell, a lower shell, conical surface reflection prisms and a sample pool, wherein an output end of the incident optical fiber is connected with an input end of the incident optical fiber connector; an output end of the incident optical fiber connector is connected with the incident optical fiber collimator; output light of the incident optical fiber collimator enters the return optical fiber collimator after being reflected by more than one odd number of theconical surface reflection prisms arranged in the sample pool; an output end of the return optical fiber collimator is connected with an input end of the return optical fiber connector; an input endof the return optical fiber connector is connected with the input end of the return optical fiber; and the sample pool is arranged in a cavity between the upper shell and the lower shell.

Description

technical field

[0001] The invention relates to an ultraviolet spectrophotometer, in particular to a detection head of an ultraviolet spectrophotometer. Background technique

[0002] Since the existing ultraviolet spectrophotometer uses sample mechanisms such as cuvettes and cuvettes, there are problems such as complicated operation, many interferences, large volume, low sensitivity, complex structure, and not easy to carry. The impact of these factors is reflected in the impact on the technical indicators of the main instruments, resulting in a large impact of stray light, which can only reach 1.0×10 in China at present. -4 , the noise index is not high, it can only reach ±0.0004Abs. Therefore, most of the domestic ultraviolet spectrophotometer instruments are concentrated in the middle and low level, and a few high-end instruments are monopolized by foreign companies, and the prices remain high. With the development of science and technology, the demand for high-end UV s...

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