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Spectral line lamp for spectrometer wavelength calibration

A spectral line lamp and spectrometer technology, applied in the field of spectral line lamps, can solve problems such as poor practicability, complex structure, and few spectral lines, and achieve the effects of strong practicability, wide application range, and simple structure

Inactive Publication Date: 2018-06-05
NAT INST OF METROLOGY CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to provide a spectral line lamp for spectrometer wavelength calibration, which solves the technical problems that the spectral line lamps in the prior art produce few spectral lines, complex structure and poor practicability

Method used

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  • Spectral line lamp for spectrometer wavelength calibration

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Embodiment 1

[0022] figure 1 It is a schematic structural diagram of a spectral line lamp used for wavelength calibration of a spectrometer according to an embodiment of the present invention, as shown in figure 1 As shown, the embodiment of the present invention provides a spectral line lamp for wavelength calibration of a spectrometer, comprising: a lamp housing 1 and two electrodes 2, and the lamp housing is filled with a mixed gas of mercury and neon.

[0023] Further, the number ratio of mercury atoms to neon atoms in the mercury-neon mixed gas is P, where 1 / 5≤P≤1.

[0024] Further, the number ratio P of mercury atoms and neon atoms in the mercury-neon mixed gas is equal to 0.5.

[0025] Further, the pressure of the mercury-neon mixed gas does not exceed 5 kPa.

[0026] Further, the two electrodes are respectively installed at both ends of the lamp housing.

[0027] Further, a high-voltage generator is connected to the two electrodes, and the high-voltage generator generates AC hig...

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Abstract

The invention provides a spectral line lamp for spectrometer wavelength calibration. The spectral lien lamp comprises a lamp housing and two electrodes, wherein the lamp housing is filled with mercury-neon mixed gas. According to the spectral line lamp for spectrometer wavelength calibration, through filling the housing with the mercury-neon mixed gas, after an AC high-voltage pulse is applied tothe spectral line lamp, a plurality of line spectrums can be generated in a 250nm-2500nm waveband range. The spectral line lamp has advantages of simple structure, wide application range and high practicability.

Description

technical field [0001] The invention relates to the technical field of optical devices, in particular to a spectral line lamp for calibrating the wavelength of a spectrometer. Background technique [0002] The spectrometer is the core device in spectrum measurement. In order to obtain accurate measurement results, the spectrometer must be strictly calibrated for the wavelength of light before use. Most of the wavelength calibration of various spectrometers in the prior art uses spectral line lamps as light sources. [0003] In the prior art, the line spectrum emitted by the low-pressure mercury lamp or the hollow cathode lamp is generally used as the natural reference wavelength to calibrate the wavelength of the spectrometer. Although the low-pressure mercury lamp is widely used, the problem is that its standard wavelength spectral lines are mainly concentrated in the ultraviolet region. In the range of 250nm-2500nm that the spectrometer needs to measure, there are only a f...

Claims

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Application Information

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IPC IPC(8): G01J3/28G01J3/10
CPCG01J3/10G01J3/28
Inventor 冯国进甘海勇赫英威郑春弟吴厚平林延东
Owner NAT INST OF METROLOGY CHINA
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