Illegal cooking oil detection pen and method thereof

Abstract

The invention discloses an illegal cooking oil detection pen and a method of the illegal cooking oil detection pen, belonging to the technical field of grease detection. The illegal cooking oil detection pen comprises a housing, a near infrared probe, a switch, a control circuit, a display and a direct current power supply, wherein the control circuit and the direct-current power supply are arranged in the housing; the switch and the display are arranged on the housing; the near infrared probe is capable of freely entering or exiting from a sharp nozzle of the housing; the control circuit comprises a photoelectric coupler, an A / D (Analog / Digital) converter and a high-speed FPGA (Field Programmable Gate Array) device; an FPGA system part uses a dual-port SDRAM (Synchronous Dynamic Random Access Memory), a controller, a register, a counter and a divider. Near infrared spectrum signals at sites of 885nm and 897nm within a waveband range are extracted during detection, and a result obtained by dividing the near infrared spectrum signals is displayed on the display, and then compared with a threshold, thus whether an oil product to be detected is illegal cooking oil or not is obtained. The illegal cooking oil detection pen does not need to be in contact with a sample, so no pollution is caused, and the operation is simple.

Description

Technical field [0001] The invention relates to the technical field of oil detection, in particular to a waste oil detection pen and a method thereof. Background technique [0002] my country is a populous country, and there is a great demand for edible oil. However, in recent years, criminals have pushed waste oil to people's tables, posing a serious threat to food safety and consumer health. Because there are many types and ingredients of waste oil, and it is difficult to distinguish between precision refined waste oil and edible oil, at present, there is no effective method to identify waste oil at home and abroad. In addition to effectively distinguishing qualified edible oil and cooking oil, detection technology is required to be able to identify quickly and accurately on site. [0003] Existing waste oil detection technology relies on laboratory environment, complex processing process, slow detection speed, poor accuracy and high cost, etc., which limit the...

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the problems that the existing waste oil detection technology is greatly affected by the outside world, the processing process is complicated, the detection speed is slow, and the accuracy is poor, and a convenient, real-time and accurate waste oil detection pen and its method are provided.

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