Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Full-wave band wavelength calibration method for spectrophotometer

A technology of spectrophotometer and correction method, which is applied in color/spectral characteristic measurement, absorption/scintillation/reflection spectrum, spectrum investigation, etc., can solve the problem of inaccurate wavelength correction, and achieve the effect of improving the accuracy of system wavelength correction

Inactive Publication Date: 2015-05-20
SUZHOU RIGOL PRECISION ELECTRIC TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem solved by the present invention is to solve the problem of inaccurate wavelength correction caused by using one wavelength correction coefficient for correction for all wavelengths

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Full-wave band wavelength calibration method for spectrophotometer
  • Full-wave band wavelength calibration method for spectrophotometer
  • Full-wave band wavelength calibration method for spectrophotometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] refer to figure 1 , the prior art spectrophotometer 1 usually includes a light source unit 101 that provides composite light, a monochromator 102 that generates monochromatic light according to the displacement, a measurement unit 103 that generates measurement results, and a measurement unit that generates light based on the measurement results. In the control unit 104 of the displacement, deuterium lamps and tungsten lamps are usually used as light sources in the light source unit 101 to provide composite light. Of course, other customary light sources can also be used. Generally, there are dispersion elements in the monochromator 102, and the dispersion elements Gratings are often used, and the monochromator 102 usually uses a motor to drive the normal mechanism to rotate the dispersion element to locate the monochromatic light of a certain wavelength. It can also be driven by a pulse motor and a reduction mechanism to locate the monochromatic light of a certain wavel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a full-wave band wavelength calibration method for spectrophotometer, which is used for a spectrophotometer, wherein the spectrophotometer comprises a light source unit for offering compound light, a monochromator for producing monochromatic light according to displacement, a measuring unit for arranging a sample to be measured and making the monochromatic light launch into the sample and producing a measured result, and a control unit for producing the displacement according to the measured result. The method comprises the following steps: adding a standard article with multiple characteristic peak values as the sample to be measured, obtaining the measured result of the standard article, and setting the displacement corresponding to the wavelength of the monochromatic light between two adjacent characteristic peak values according to the wavelength and displacement of monochromatic light corresponding to the two adjacent characteristic peak values in the measured result. The invention can correct the wavelength section by section in the full-wave band wavelength of the compound light, wherein each wave band has a corresponding wavelength correction coefficient and effectively raises wavelength precision.

Description

technical field [0001] The invention relates to the field of a general measuring device using an optical measuring method, in particular to a wavelength correction method of a spectrophotometer. Background technique [0002] A spectrophotometer is a photoelectric analysis instrument that uses the selective absorption of light by a substance to perform qualitative and quantitative analysis of a substance, and is also a spectroscopic instrument. According to the principle of electromagnetic radiation, different substances have different selective absorption, that is, different absorption spectra. The internal structure and chemical composition of the substance can be easily judged through the analysis of the absorption spectrum. A spectrophotometer is a combination of a spectroscopic instrument and a photometer. According to different operating spectrum principles, spectrophotometers can be divided into spectrophotometers that study the absorption spectrum of substance molec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/42G01N21/31
Inventor 王悦王铁军李维森
Owner SUZHOU RIGOL PRECISION ELECTRIC TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com