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Zeeman background correction optical path and its system

A technology of background correction and optical path, applied in the field of optics, can solve problems affecting background correction and instrument stability, affecting measurement stability and reliability, poor consistency of two signals, etc., to achieve stable optical signal, small load, and easy adjustment and maintenance effects

Active Publication Date: 2018-07-24
BEIJING HAIGUANG INSTR
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  • Claims
  • Application Information

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Problems solved by technology

Among them, the advantages of the Rochonian prism method are: the signals of the two channels are relatively consistent, and the two beams of light overlap are better. The disadvantage of the Rochonian prism method is: the motor needs to drive the prism to rotate to separate the two beams of light, and the performance of the motor is very large. Affects background correction and instrument stability
The advantages of the Wollaston prism method are: the prism is stationary, no moving parts are needed, and the reliability is high. The disadvantages are: the consistency of the two signals is poor, and there are many optical lenses.
The disadvantage of this solution is: motor rotation speed, noise, temperature rise and other factors will affect the measurement stability and reliability

Method used

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  • Zeeman background correction optical path and its system
  • Zeeman background correction optical path and its system
  • Zeeman background correction optical path and its system

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Embodiment Construction

[0016] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] see Figure 2-3 As shown, a Zeeman background correction optical path includes: a light source 11, a constant magnetic field and an atomizer 12, a first half-mirror 13, a first Rochonian prism 14, a first total reflection mirror 15, and a second Rochonian prism. Hungarian prism 16, second total reflection mirror 17, light chopper 18, second half mirror 19 and monochromator and detector 20, wherein, light source 11 emits light and sends light to constant magnetic field and atomizer 12. The constant magnetic field and atomizer 12 receives the light emitted by the light source 11 and sends the light to the first half mirror 13, and the first half mirror 13 receives th...

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Abstract

The invention relates to a Zeeman background correction optical path and a system thereof. Including: the light source emits light, the constant magnetic field and the atomizer receive the light emitted by the light source and send the light to the first half-mirror, and the first half-mirror receives the light and divides the light into a first beam and a second beam , and send the first light beam to the first Rochonian prism along a straight line and reflect the second light beam to the first total reflection mirror in the vertical direction, the first Rochonian prism sends the first light beam to the light cutter, and the first total reflection The mirror receives the second light beam and sends the second light beam to the second Rochester prism, the second Rochester prism receives the second light beam and sends the second light beam to the second total reflection mirror, and the second total reflection mirror sends the second light beam to To the light chopper, the light chopper machine blocks the beam of one of the first beam and the second beam by rotating the light chopper, and sends the unblocked beam to the monochromator and detector. Enhanced instrument stability and reliability.

Description

technical field [0001] The invention relates to the field of optics, in particular to a Zeeman background correction optical path and a system thereof. Background technique [0002] At present, the optical paths for transverse Zeeman background correction include: Rochester prism method and Wollaston prism method. Among them, the advantages of the Rochonian prism method are: the signals of the two channels are relatively consistent, and the two beams of light overlap are better. The disadvantage of the Rochonian prism method is: the motor needs to drive the prism to rotate to separate the two beams of light, and the performance of the motor is very large. Affects background correction and instrument stability. The advantages of the Wollaston prism method are: the prism is stationary, does not require moving parts, and has high reliability. The disadvantages are: the consistency of the two signals is poor, and there are many optical lenses. Therefore, both the Rochester pri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/02G02B27/00
Inventor 杜江张舜生甄长伟
Owner BEIJING HAIGUANG INSTR
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