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Olfactory instrument and olfactory analysing method of small automatic machine

A machine-smell, small technology, applied in the direction of instruments, analytical materials, etc., can solve the problems of inconvenient operation and large volume, and achieve the effects of simple operation, large volume and low test cost.

Inactive Publication Date: 2007-07-18
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

One of the disadvantages of the water bath constant temperature method is the large volume; the second disadvantage is that the sample bottle needs to be put into and taken out of the water repeatedly, which is very inconvenient to operate

Method used

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  • Olfactory instrument and olfactory analysing method of small automatic machine
  • Olfactory instrument and olfactory analysing method of small automatic machine
  • Olfactory instrument and olfactory analysing method of small automatic machine

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] The structure of the present invention-a kind of small-sized automatic machine olfactory instrument is as shown in accompanying drawing 1, and its feature is, is made up of 6 major parts of test case, thermostatic cup, automatic sampling lifting mechanism, computer, display, oxygen bottle. Among them, the gas sensor array 1 and the annular working chamber 2, the two-position three-way solenoid valve 3, the flow throttle valve 8, the partition 11, the resistance heating wire 12, the Pt resistance temperature sensor 13, the fan 14 and some injection needles 7 It is located in a test box with a constant temperature of glass wool insulation layer.

[0048] Considering that there is no need for refrigeration when the ambient temperature is the highest and the operating temperature of the solenoid valve and the adhesive should not be too high, the internal c...

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Abstract

A pocketsize olfactory instrument consists of test box in constant temperature; pocketsize gas-sensitive transducer array operation chamber with constant temperature of 55+-0.1deg.c; pocketsize headspace gas generating unit in constant temperature and with volatile gas volume of 140ml; gas headspace automatic-sampling unit formed by stepping motor, driving element, sample feeding needle and so on; computer; accurate power supply; accurate control and test circuit.

Description

technical field [0001] The present invention-a small automatic machine olfactory instrument and odor analysis method, relates to the fields of computer, precision measurement and precision control, precision machinery, applied mathematics, analytical chemistry, spices and flavors, and food. The invention mainly solves the problems of miniaturization of the gas sensor array studio, precise constant temperature of key components inside the machine olfactory instrument test box, precise constant temperature of samples and generation of large-capacity headspace volatile gas, automatic sampling of headspace volatile gas, and miniaturization of instruments. Background technique [0002] The machine olfactory instrument is composed of multiple gas sensors with overlapping performance and appropriate pattern recognition methods. It has the ability to identify simple and complex odors. It has broad application prospects in rapid quality detection, toxic and harmful gas monitoring and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/00
Inventor 高大启
Owner EAST CHINA UNIV OF SCI & TECH
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