Universal electronic nose detection

Universal electronic nose
The detection object of electronic nose is mainly for volatile flavor substances
When one or more flavor substances pass through the electronic nose, the & ldquo; Odor fingerprint & rdquo; It can be sensed by sensors and extracted by special intelligent pattern recognition algorithm
Different & ldquo; Odor fingerprint & rdquo; Information can be used to distinguish and identify different gas samples
In addition, some specific flavor substances can just characterize the comprehensive quality information of samples under the influence of multivariable factors such as different raw material producing areas, different harvest times, different processing conditions and different storage environments
The electronic nose is composed of advanced sensors
It is an electronic nose with good stability and high detection accuracy
It is very suitable for detecting liquid and solid samples containing volatile substances

I Application scope:
Process control: the dosage of additives in food production, the control of industrial cleaning process, fermentation process control, the amount of artificial gas in natural gas, the production control of packaging in food industry, and the process control of oil pressing or barbecue

Quality control: the odor of oil, the freshness of food, the scattered gas of packaging, the solvent residue of polymer, the degradation of flavor, the characteristics of drug gas, resin, the aroma of beverage, etc

Environmental control: odor of wastewater purification process, fertilizer odor, filtration process management, organic solvents in the air of the studio, bacterial identification, leakage control and combustion control

II Application examples:
1
Analysis of rotten food
2、  Analysis of the kinds and aromatic characteristics of molasses
3、  Meat freshness analysis
4、  Analysis of fruit freshness and aromatic species
5、  Identification and analysis of yogurt and yogurt accessories
6、  Milk freshness analysis
7、  Discrimination and judgment of non-alcoholic beverages such as fruit juice
8、  Analysis on the difference of aroma of alcoholic beverages
9、  Grain growth analysis
10
Aroma of coffee and related products
11
Analysis of tobacco quality and aroma
12
Analysis of aroma of other foods
Structural characteristics of electronic nose
Unique interactive sensitive multi-sensor array: 6 ~ 28 metal oxide semiconductor sensors with different properties
The software interface can display the configuration selection of sensors
(flexibly customize multiple combinations of sensors 6, 10, 14, 18 and 28); The sensor conditioning circuit is designed to analyze the product odor signal, adjust and amplify it

Gas receiving chamber: the whole gas chamber is made of aluminum and will not deform under long-term high-temperature use
Each sensor has an independent and evenly distributed gas chamber

Detection accuracy: up to ppb level
Fast detection speed: 1-2 minutes
Fast sensor response time: less than 1 second
Stable detection data: each sensor has an independent and evenly distributed air chamber

Easy to operate: the software has complete intelligent pattern recognition
Available online, portable and desktop

Data processing software: complete intelligent pattern recognition system and data analysis system, including dimension reduction, clustering, classification and regression, which can cope with the expanding data scale and endless data science theories in the era of big data
The prediction function is required to keep the output of the algorithm unchanged when the training sample is unknown

Intelligent data expansion: feature variables and feature subsets can be extracted from high-dimensional big data, data features and distribution characteristics can be viewed, regression analysis can be carried out with continuous data, classification analysis can be carried out with discrete data, and multivariate linkage analysis can be realized;
Diversified operation modes: data processing can be operated by one key operation software, and the experiment can be operated directly and quickly through the large touch screen of the instrument
The touch screen displays the test curve in real time

Multivariate mathematical statistics system:
Discrimination test of overall quality difference of objects
Identification of origin protection products and brand products
Product quality grade evaluation
Fast inversion of sensory attributes and physical and chemical indexes of samples
Evaluation of product shelf life
III Some parameters:
Dimensions (L & times; W & times; H) CM : 40× 40× thirty
Interactive sensitive multisensor array: 14 metal oxide semiconductor sensors with different properties
Detection accuracy: up to ppb level
Fast detection speed: 1-2 minutes
Fast sensor response time: less than 1 second
Stable detection data: each sensor has an independent and evenly distributed air chamber
Easy to operate: the software has complete intelligent pattern recognition