Portable electronic nose for rapidly detecting freshness of animal-derived feed

Abstract

The invention discloses a portable electronic nose for rapidly detecting the freshness of animal-derived feed. The portable electronic nose comprises a power supply module, a display module, a controlprocessing and storage module, a data acquisition module, a driving module and a detection module, wherein the power supply module is used for supplying power to the whole electronic nose; the display module is used for carrying out interface operation and displaying acquired data; the control processing and storage module is used for carrying out data processing and storage, and control processing; the data acquisition module is used for carrying out acquisition, amplification, filtering and AD (Analog-to-Digital) conversion on an electric signal of a sensor; the control processing and storage module is used for controlling a pump and a solenoid valve of the detection module through the driving module; the detection module is used for detecting odorous gas of the animal-derived feed by utilizing a pipeline system, the pump, the solenoid valve and a detector with the sensor; chemical reaction is carried out through the sensor and the odorous gas and the resistance value of the sensoris changed, so that the electric signal is obtained. The electronic nose is simple in structure, convenient to operate, use and carry, high in sensitivity and accurate and reliable in detection results.

Description

technical field [0001] The invention relates to the technical field of freshness detection, in particular to a portable electronic nose for rapid detection of the freshness of animal-derived feed. Background technique [0002] Bionic olfactory technology is a novel quality analysis, identification and detection technology for agricultural products developed in recent years. It uses a cross-sensitive gas sensor array to detect the volatile odor of the sampled samples, and uses fingerprints to identify and quantify The detected gas can obtain the overall information of the sample (also called "fingerprint" data), so as to realize the detection and identification of the sample. [0003] Abroad, the research on bionic olfaction is extremely active, and it is mainly used in the identification and classification of volatile odors in foods such as wine, tea, fish and meat, with the purpose of grading quality and judging freshness. [0004] The working principle of the electronic n...

AI Technical Summary

Problems solved by technology

Artificial senses rely on people's sense of smell to judge the freshness of smell, hala or rancid smell, etc., which is simple and easy to implement, but lacks objectivity

Using chemical methods to measure TVB-N and AV content to judge the freshness of animal-derived feed, the sample needs to be pre-treated before the measurement, the process is cumbersome and consumes manpower and material resources

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