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Title:
ELECTRONIC NOSE INSTRUMENT AND SENSORY QUALITY EVALUATION METHOD FOR TOBACCO AND TOBACCO PRODUCT
Document Type and Number:
WIPO Patent Application WO/2019/085369
Kind Code:
A1
Abstract:
An electronic nose instrument and a sensory quality evaluation method for tobacco and tobacco products. In the electronic nose instrument, an air-sensitive sensor array module, an automatic smoke gas sample introduction system, a computer control and data analysis system and an automatic ignition device are integrated into a test box to realize the modularization, overall integration and miniaturization, as well as the operation automation of key components; by means of the simulation of a smoke panel test process of professionals, accurate automatic conversion between a first puff of smoke gas, smoldering/self-ignition, a second puff of smoke gas, clean air and ambient air and between a gas flow of 6500 ml/min and a gas flow of 1050 ml/min is realized; a large number of standard samples are tested, tobacco big data of the relationship between a gas-sensitive sensor array response and a brand symbol and a sensory quality index evaluation value is established, and a tobacco sensory quality evaluation problem is transformed into: (1) identification, and (2) sensory quality index prediction problems, and same is solved by using a modular neural network cascading model; and a corrected S-type activation function and most-votes decision and quantization rule based on a modular neural network are proposed, and thus on-line detection, identification and sensory quality index score prediction of tobacco and tobacco products on a large scale are realized.

Inventors:
GAO, Daqi (East China University of Science and Technology, 130 Meilong Road, Shanghai 7, 200237, CN)
SONG, Jiamin (East China University of Science and Technology, 130 Meilong Road, Shanghai 7, 200237, CN)
ZHANG, Xiaoqin (East China University of Science and Technology, 130 Meilong Road, Shanghai 7, 200237, CN)
Application Number:
CN2018/079389
Publication Date:
May 09, 2019
Filing Date:
March 18, 2018
Export Citation:
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Assignee:
GAO, Daqi (East China University of Science and Technology, 130 Meilong Road, Shanghai 7, 200237, CN)
International Classes:
G01N31/12; G01N1/24; G01N27/12; G01N35/00
Foreign References:
CN107807199A2018-03-16
CN103336090A2013-10-02
US7531137B22009-05-12
CN101101299A2008-01-09
CN105699437A2016-06-22
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