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Full-band spectrometer and working method thereof

A working method and full-band technology, applied in the field of spectrometers, can solve the problems of high product failure rate, high production cost, difficult to meet the requirements of precision, etc., and achieve the effect of good elimination effect, simple debugging and high precision.

Pending Publication Date: 2022-03-01
HANGZHOU PUYU TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. It is difficult to achieve full-wavelength coverage from the ultraviolet band to the near-infrared band, and the detection range is limited;
[0004] 2. When the spectrometer is assembled and debugged, it is difficult to debug, the accuracy is difficult to meet the requirements, and the product failure rate is high, resulting in high production costs;
[0005] 3. Stray light has a great impact; for stray light elimination, existing spectrometers often suppress it from the hardware side and use software algorithms to correct and compensate, which makes research and development more difficult, and the impact of stray light is greater in the ultraviolet-near-infrared full-band

Method used

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  • Full-band spectrometer and working method thereof

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Effect test

Embodiment 1

[0033] figure 1 A schematic structural diagram of the full-band spectrometer of the embodiment of the present invention is given, as figure 1 As shown, the full-band spectrometer includes:

[0034] Housing 11, collimating mirror 22, grating 23, imaging mirror 24 and array detector 26, the collimating mirror 22, grating 23 and imaging mirror 24 are arranged inside the housing 11, and array detector 26 is arranged On the outside of the housing 11; the measurement light is imaged on the array detector 26 after passing through the collimating mirror 22, the grating 23 and the imaging mirror 24 in sequence;

[0035] An optical fiber head 27 and an optical fiber holder 28, the optical fiber head 27 is fixed on the optical fiber holder 28, the optical fiber holder 28 is arranged on the housing 11; the optical fiber is plugged into the optical fiber head 27;

[0036] A first adjustment unit, the first adjustment unit is used to adjust the distance between the fiber holder 28 and the...

Embodiment 2

[0062] An application example of the full-band spectrometer and its working method in multi-component gas measurement according to Embodiment 1 of the present invention.

[0063] In this application example, as figure 1 As shown, the outline of the housing 11 is substantially rectangular, including a first side wall, a second side wall, a third side wall and a fourth side wall connected in sequence; the first side wall has a cylindrical channel; the optical fiber head 27 is fixed on On the cylindrical fiber seat 28, the central axis of the fiber head 27, the central axis of the fiber seat 28, and the central axis of the cylindrical channel all coincide; the optical fiber seat 28 is arranged in the cylindrical channel, along the The central axis moves positively and reversely. During the movement, the fiber seat 28 has no displacement in the direction perpendicular to the central axis of the channel; the side of the fiber seat 28 has a V-shaped groove, which is parallel to the ...

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Abstract

The invention provides a full-band spectrometer and a working method thereof, the full-band spectrometer comprises a shell, a collimating mirror, a grating, an imaging mirror and an array detector, the collimating mirror, the grating and the imaging mirror are arranged in the shell, and measuring light is imaged on the array detector after sequentially passing through the collimating mirror, the grating and the imaging mirror; the optical fiber head is fixed on an optical fiber seat, and the optical fiber seat is arranged on the shell; the first adjusting unit is used for adjusting the distance between the optical fiber seat and the collimating mirror along the central axis direction of the optical fiber head; the second adjusting unit is used for adjusting the spatial position of the imaging mirror; the extension arms are arranged on the inner wall of the shell, a part of the measuring light in the shell penetrates through a gap between the two extension arms, and a part of the measuring light in the shell is blocked by the extension arms; and the extinction unit is arranged at the side part of the array type detector. The invention has the advantages of simple adjustment, stray light removal and the like.

Description

technical field [0001] The invention relates to a spectrometer, in particular to a full-band spectrometer and a working method thereof. Background technique [0002] At present, the existing spectrometers on the market are mostly ultraviolet spectroscopy, infrared spectroscopy, ultraviolet-visible spectroscopy, etc. There are many deficiencies in this spectrometer, such as: [0003] 1. It is difficult to achieve full-wavelength coverage from the ultraviolet band to the near-infrared band, and the detection range is limited; [0004] 2. When the spectrometer is assembled and debugged, it is difficult to debug, the accuracy is difficult to meet the requirements, and the product failure rate is high, resulting in high production costs; [0005] 3. The impact of stray light is great; for the elimination of stray light, existing spectrometers often suppress it from the hardware side and use software algorithms to correct and compensate, which increases the difficulty of research...

Claims

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Application Information

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IPC IPC(8): G01J3/02G01J3/28
CPCG01J3/0202G01J3/0205G01J3/28
Inventor 吴晨胡建坤李佩聪唐小燕李锐赵永乾
Owner HANGZHOU PUYU TECH DEV CO LTD
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