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Wide-area Raman spectrum detector

A Raman spectroscopy and detector technology, applied in the field of spectral detectors, can solve the problems of high production cost and maintenance cost, loose internal structure, bulky volume, etc., and achieve the effect of reducing maintenance cost, low production cost and reasonable layout

Pending Publication Date: 2021-07-30
西派特(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The current Raman spectrometer has a complex structure, high production cost and maintenance cost, and is bulky due to the loose internal structure

Method used

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0031] Such as Figure 1-8 As shown, a wide-area Raman spectroscopy detector according to an embodiment of the present invention includes a laser 22, the laser 22 is connected to a laser power supply 11, and the laser 22 is connected to the input of the spectrum acquisition probe 14 through an incident optical fiber 8 end 23, the output end 31 of the spectrum acquisition probe 14 is connected to the detector 13 through the recycling optical fiber 9, and the detector 13 is connected to an outp...

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Abstract

The invention discloses a wide-area Raman spectrum detector. The detector comprises a laser; the laser is connected with a laser power supply; the laser is connected with the input end of a spectrum acquisition probe through an incident optical fiber; the output end of the spectrum acquisition probe is connected with a detector through a recovery optical fiber; and the detector is in communication connection with an output interface. The spectrum acquisition probe comprises a probe body, an optical channel is arranged in the probe body, the input end is communicated with the output end through the optical channel, and a first collimating lens, a narrow-band optical filter, a reflector, a dichroic beam splitter, a long-wave-pass optical filter and a first focusing lens are sequentially arranged in the optical channel. The probe body is further provided with a light absorption window communicated with the light channel. The detector comprises a detector body. A slit, a second collimating lens, a grating, a second focusing lens and a CCD detector are arranged in the detector body. The detector is reasonable in layout, compact in structure, small in size, simple in structure, convenient to use and low in production cost.

Description

technical field [0001] The invention relates to the technical field of spectrum detectors, in particular to a wide-area Raman spectrum detector. Background technique [0002] Animal-derived foods, expensive medicines, health care cosmetics and other high-end consumer products have long existed in the market as substandard products and false ones as genuine ones. Adulteration has endangered public consumption and has been repeatedly banned, causing a great negative impact on society. The authenticity identification of animal-derived food and high-end consumer goods is an important technical means for market supervision and law enforcement to combat counterfeiting. [0003] Molecular spectroscopy (infrared, near-infrared and Raman) can reflect the composition and structure information of substances at the molecular level, and is widely used in substance identification. Among them, Raman spectroscopy is fast, simple, and does not use any reagents. It is very suitable for rapid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 江伟庞立波程腾王向谊
Owner 西派特(北京)科技有限公司
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