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Food safe monitoring instrument based on compact disc

A technology of food safety and monitoring instrument, which is applied in the direction of color/spectral characteristic measurement, etc., to achieve the effect of low price, small size and light weight

Inactive Publication Date: 2008-10-01
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The purpose of the present invention is to provide a CD-based food that is cheap, fast in monitoring, small in size, light in weight, easy to use, and easy to realize fast online monitoring in response to the lack of fast monitoring means and equipment in the field of food safety in my country. safety monitor

Method used

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  • Food safe monitoring instrument based on compact disc
  • Food safe monitoring instrument based on compact disc
  • Food safe monitoring instrument based on compact disc

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Experimental program
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Embodiment Construction

[0036] Such as figure 1 As shown, the light emitted from the light source 21 passes through the sample cell 22 (the detection part can be reflective or transmissive), and irradiates the optical disc 24 through the slit 23. Due to the light splitting effect of the optical disc 24, the incident light of different wavelengths Diffracted to different angles, the diffracted light is detected by the linear CCD detector 25 to achieve the purpose of food safety monitoring.

[0037] In addition to the use of this monitor figure 1 In addition to using the slit as a transmissive probe, different probes can also be used to obtain information on the monitored sample. Such as figure 2 As shown, figure 2 a is a reflective probe using optical fibers. The incident optical fiber 27 and the outgoing optical fiber 28 are set on the same side of the sample cell 22. The incident optical fiber 27 carries the light source information and irradiates the sample 26 to be monitored in the sample cell 22, ...

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PUM

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Abstract

A food safety monitor based on the optical disc comprises a light source, a sample pool, a detection part, an optical disc which is taken as a light splitting element, and a linear array CCD detector or a CMOS detector. The sample pool is arranged between the light source and the optical disc. The light emitted from the light source passes through the sample poll and emits to the optical disc. A light diffraction route of the optical disc is provided with a linear array CCD detector, a CMOS detector and a multiple-channel detecting array which is formed with a plurality of photodiodes. The light intensities of various wavelengths are obtained and the monitoring to spectrum of the detected sample is realized. The monitor has the advantages of low cost, small volume, light weight, easy operation, simple installation, and easy realization to the fast on-line monitoring.

Description

Technical field [0001] The present invention relates to a food safety monitoring instrument; more specifically, the present invention relates to a low-cost optical disc-based spectrometer, which can be used in the fields of food safety monitoring, environmental monitoring, water quality monitoring, air pollution monitoring and the like. Background technique [0002] In recent years, food safety issues have become increasingly prominent and have attracted more and more social attention. As a developing country with an economic transition, my country, coupled with a vast area, scattered agricultural production, individual, small-scale and even ultra-small-scale production, has made the issue of agricultural product quality and safety increasingly prominent. For this reason, for the most critical monitoring technology affecting food safety, the subject of related monitoring methods and equipment is a hot spot in current research. It is of urgency and strategic importance, has great ...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 黄尚廉张洁孙吉勇韦玮朱永
Owner CHONGQING UNIV
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