Rapid nondestructive identification device for multi-light-source LIF sunflower seed oil doped rapeseed oil

Abstract

The invention relates to a rapid nondestructive identification device for multi-light-source LIF sunflower seed oil doped rapeseed oil, which consists of a four-way relay, a laser 1, a laser 2, a laser 3, a laser 4, a receiving module, a CCD module, an FPGA and an LCD display. When the FPGA sends out two weak magnetic signals, two corresponding pins of the four-way relay are switched on, that is to say, a switch is switched on, two lasers corresponding to the two pins emit laser to horizontally irradiate on the vegetable oil sample to be detected, and the receiving module receives a fluorescent signal sent by the sample and transmits the fluorescent signal to the CCD module. The CCD module converts the received fluorescence signal into an electric signal, the electric signal is analyzed and compared through modeling on the FPGA, and finally the fluorescence spectrum of the sample is displayed on the LCD display, so that whether the rapeseed oil is doped in the sunflower seed oil or notis judged. The invention uses the multi-light-source combined LIF technology, does not touch the sample to be detected, and realizes quick and nondestructive detection.

Description

technical field [0001] The invention relates to the field of vegetable oil safety detection, in particular to a rapid and non-destructive identification device for multi-light source LIF sunflower oil mixed with rapeseed oil. Background technique [0002] In recent years, the country and the people have paid more and more attention to food safety, and the impact of various adulteration and adulteration incidents has become greater and greater. Among them, the adulteration of vegetable oil has been eliminated due to the limitations of testing equipment and technology. It is becoming more and more serious, mixing low-priced vegetable oil with high-priced vegetable oil, such as mixing low-priced rapeseed oil with high-priced sunflower oil; what's more, mixing waste oil with vegetable oil, the rights and interests of the former consumers are being violated. The latter also seriously damages the health of consumers. [0003] Traditional vegetable oil detection methods include li...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the country and the people have paid more and more attention to food safety, and the impact of various adulteration and adulteration incidents has become greater and greater. Among them, the adulteration of vegetable oil has been eliminated due to the limitations of testing equipment and technology. It is becoming more and more serious, mixing low-priced vegetable oil with high-priced vegetable oil, such as mixing low-priced rapeseed oil with high-priced sunflower oil; what's more, mixing waste oil with vegetable oil, the rights and interests of the former consumers are being violated. damage, which also seriously damages the health of consumers

[0003] Traditional vegetable oil detection methods include liquid chromatography, gas chromatography, etc. The detection speed is slow, time-consuming, and the equipment is expensive, which limits the strength of vegetable oil detection

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