Optical path correction method and device for baseline drift in glove box type online spectral analysis

A technology of baseline drift and spectral analysis, which is applied in the field of optical path correction of baseline drift in glove box online spectral analysis, can solve problems affecting the service life and performance indicators of measuring equipment, install operating components, etc., and achieve timeliness problems, optical path The effect of simple structure and easy maintenance
CN111175236AInactive Publication Date: 2020-05-19CHINA INSTITUTE OF ATOMIC ENERGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA INSTITUTE OF ATOMIC ENERGY
Publication Date
2020-05-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an optical path correction method and device for baseline drift in glove box type online spectral analysis. The method comprises the steps that a measuring light path arranged in a glove box is connected in parallel on the basis of a closed online spectrum reference light path, the random switching between the measuring light path and the reference light path is achieved through a workstation, the reference light path is used for measuring blanks, the measuring light path is used for measuring samples online, and the online correction of baseline drift is achieved whilethe samples are measured. According to the optical path correction method and device for baseline drift in online spectral analysis, the online correction of the baseline drift is achieved while sample measurement is conducted, the timeliness problem of correction is solved, meanwhile, a sample light path does not need to be emptied and cleaned, and the continuity of online monitoring is guaranteed. In order to facilitate instrument maintenance and guarantee instrument performance, a required and designed correction optical path is simple in structure, easy to maintain and few in rotating component.
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Description

technical field

[0001] The invention belongs to the technical field of on-line quantitative analysis of spectra, in particular to an optical path correction method and device for baseline drift in glove box-type on-line spectral analysis. Background technique

[0002] Online spectral analysis technology has many advantages: fast analysis speed, instant data acquisition, continuous and simultaneous measurement of multiple components, etc., so it is more and more widely used in process monitoring of industrial production. The timely and accurate analysis data it provides has played an irreplaceable role in stabilizing production and reducing labor costs. But the technology also has some problems that need to be solved. For example, after several hours of continuous operation of the analysis device, the state of the instrument will change. On the one hand, the intensity of the light source will change with changes in temperature, voltage, etc., resulting in a drift in the inte...

Claims

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