Universal electronic nose system and detection method thereof

A general-purpose electronic and detection module technology, applied in the field of electronic nose, can solve the problems of poor repeatability, long cycle, large individual differences, etc., and achieve the effects of improving detection accuracy, detection sensitivity, and detection accuracy.

Active Publication Date: 2016-11-23
CHONGQING UNIV
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Problems solved by technology

Expert sensory evaluation is highly subjective, and there are many shortcomings such as large individual differences, non-uniform standards, and poor repeatability; chemical evaluation methods generally require technical pe

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  • Universal electronic nose system and detection method thereof
  • Universal electronic nose system and detection method thereof
  • Universal electronic nose system and detection method thereof

Examples

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[0046] Example

[0047] A general electronic nose system, such as figure 1 , figure 2 As shown, it includes a sampling unit, a detection unit, and a host computer control unit, wherein the detection unit includes a sensor array detection module and an ion mobility spectrum detection module, and the sampling unit includes a zero-order air generator, a first mass flow rate The controller MFC1, the second mass flow controller MFC2, the third mass flow controller MFC3 and the sample chamber, the airflow from the outlet of the zero-order air generator flows into the sample chamber through the first mass flow controller MFC1 on the one hand, and the other On the one hand, the third mass flow controller MFC3 flows into the ion mobility spectrum detection module, and the air flow out of the sample chamber is mixed with the gas flow passing through the third mass flow controller MFC3 and then flows into the ion mobility spectrum detection module. On the other hand, the second mass flow c...

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Abstract

The invention provides a universal electronic nose system applicable to the fields of environmental monitoring, medical diagnosis, food detection, quality control and the like and a detection method of the universal electronic nose system. The universal electronic nose system comprises a sample feeding unit, a detection unit and an upper computer control unit, wherein the detection unit comprises a sensor array detection module and an ion mobility spectrum detection module. According to the universal electronic nose system, a sensor array technique and an ion mobility spectrum technique are combined, the sensor array detection module or the ion mobility spectrum detection module can be independently utilized for detecting, then a system detection result is independently given out by the corresponding detection module, furthermore, the sensor array detection module and the ion mobility spectrum detection module can be utilized for combined detection, and then the system detection result is integrally obtained from detection results of the sensor array detection module and the ion mobility spectrum detection module, so that the detection accuracy of a traditional universal electronic nose system can be greatly improved by virtue of the combined detection.

Description

technical field [0001] The invention relates to the technical field of electronic nose, in particular to a general electronic nose system and a detection method applicable to the fields of environmental monitoring, medical diagnosis, food detection, quality control and the like. Background technique [0002] Odor information is one of the natural attributes of objects, which largely characterizes a certain characteristic of objects. By detecting the odor information of different substances, qualitative and quantitative analysis of objects can be realized. [0003] The electronic nose is a rapid odor collection and analysis system built to simulate the human olfactory system. For a long time, the evaluation methods of odor information are mainly divided into expert sensory evaluation and chemical evaluation. Expert sensory evaluation is highly subjective, and there are many shortcomings such as large individual differences, non-uniform standards, and poor repeatability; che...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01N27/62G01N27/622
CPCG01N27/62G01N33/0031
Inventor 田逢春孙皓甘平张磊吕博梁志芳孙彤刘涛于彬刘香敏张龙龙
Owner CHONGQING UNIV
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