Portable Raman optical spectrum olive oil discrimination data processing system

A technology for Raman spectroscopy and data identification, which is applied in the field of data identification and processing systems for the authenticity of olive oil by portable Raman spectroscopy, can solve problems such as unfavorable discovery and monitoring management, low accuracy, and difficulty in popularization and promotion, and achieves improved detection speed. and efficiency, the effect of easy movement detection

Inactive Publication Date: 2008-11-12
CHINESE ACAD OF INSPECTION & QUARANTINE
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Problems solved by technology

The current reports generally use a large-volume Raman spectrometer and are based on a pattern recognition method. This method is abstract and has low accuracy. It requires operators to have professional know

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  • Portable Raman optical spectrum olive oil discrimination data processing system
  • Portable Raman optical spectrum olive oil discrimination data processing system
  • Portable Raman optical spectrum olive oil discrimination data processing system

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Embodiment Construction

[0039] Below in conjunction with embodiment do more detailed description.

[0040] see figure 1 , is the circuit block diagram of the portable Raman spectrum olive oil identification data processing system of the present invention, the portable Raman spectrum olive oil identification data processing system of the present invention includes a CPU, a Raman spectrometer, a display and a thermal printer, and the CPU is connected to the Raman through a serial port The spectrometer, the CPU are connected to the monitor and the thermal printer, and the CPU is also connected to the encoding switch, the four-way key, the power indicator light and the laser indicator light.

[0041] Referring to Fig. 2, Fig. 3 and Fig. 4, in this embodiment, the CPU selects C8051F020U1 of 51 series, which is a high-speed 8-bit multi-function single-chip microcomputer, which can be programmed online. The J1 socket in Fig. 2 is its online programming and debugging interface .

[0042] The CPU is surroun...

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Abstract

The invention provides a portable Raman spectrum data processing system for olive oil real and false identification, comprising a Raman spectrometer, a housing, an analyzer panel, and a calculation and control device for the micro-controller. Wherein a near-infrared laser with a emission wavelength of 785nm is selected as the laser source the Raman spectrometer the laser energy parameter is selected between 100-200mw, time division parameter is selected between 5-20s. An optimum Raman peak strength is calculated from the two parameters mentioned, 5 spectrum scans are continuously carried out, and an average Raman spectrum of the 5 scanning is finally obtained, which ranges from 250-2300cm[-1]. The test sample is scanned with a resolution between 4-10cm[-1]. The calculation and control device for the micro-controller is used for obtaining Raman spectrum with flat baseline, with spectrum drawn by using corresponding strength of spectrum between 1265cm[-1] to 1441cm[-1] as horizontal axis, using corresponding strength of spectrum between 1657cm[-1] to 1441cm[-1] as vertical axis, and marking points of the sample therein.

Description

technical field [0001] The invention relates to a data processing system, in particular to a portable Raman spectroscopic data identification processing system for the authenticity of olive oil. Background technique [0002] Food safety issues have become the focus of global attention. Food safety incidents have spread widely, causing huge social impact and economic losses, and also posing an increasingly serious threat to human living environment and even health and safety. Fuyang "big-headed doll" incident, turbot incident and red-hearted duck egg scandal have aroused widespread attention at home and abroad. Time after time of food safety issues and crises have tested the capabilities of food regulatory agencies, and how to ensure food safety has become a major concern of the whole people. [0003] There are undoubtedly many reasons for these situations. One of the main reasons is that the detection technology is backward, and there is a lack of rapid screening and detect...

Claims

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Application Information

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IPC IPC(8): G01N21/65G06F19/00
Inventor 邹明强张孝芳齐小花马寒露刘春伟张印春陈彦长
Owner CHINESE ACAD OF INSPECTION & QUARANTINE
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