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Volt-ampere electronic tongue

An electronic tongue and volt-ampere technology, applied in the direction of material electrochemical variables, etc., can solve problems such as difficult real-time detection, small scope of application, complicated operation, etc., and achieve the goal of eliminating background interference factors, short detection time, and large detection information Effect

Inactive Publication Date: 2011-01-26
杭州晟迈智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The signal excitation acquisition device can generate large-scale pulse signals in multiple frequency bands, but it generates a single excitation signal and cannot flexibly adjust the signal according to different detection material systems, making the detection signal relatively single, the result accuracy is not high, and the scope of application is small
[0006] The above-mentioned electronic tongue also has the problems of requiring pre-processing, complicated operation, time-consuming and difficult to realize real-time detection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Five kinds of tea beverages (barley fragrant tea, iced green tea, jasmine tea, iced black tea and honey green tea) were selected as the detection and analysis objects.

[0038] According to the existing research, the pulse excitation signal parameters are set as: h=0.9V, t1=0.1s, t2=0.07s, ρ=0.2V.

[0039] A sensor array is attached to the aforementioned electronic tongue and immersed in the liquid sample. The working electrodes are platinum electrodes, gold electrodes, and palladium electrodes; the auxiliary electrodes are platinum disk electrodes; and the reference electrodes are platinum column electrodes. The sensor converts the solution composition information into current information and transmits it to the computer through the single chip microcomputer.

[0040] The eigenvalue data of platinum (1Hz) gold (100Hz) palladium (100Hz) frequency band is superimposed as the data collected by the sensor array of the multi-frequency pulse intelligent chemical sensory sys...

Embodiment 2

[0043] Eight kinds of liquors (Yin Furong Xifeng, Sanhua Liquor, Moutai Liquor, Fen Liquor, Site Liquor, Luzhou Laojiao, Jiugui and Dong Liquor) were selected as the detection and analysis objects.

[0044] According to the existing research, the pulse excitation signal parameters are set as: h=0.85V, t1=0.12s, t2=0.06s, ρ=0.1V.

[0045] A sensor array is attached to the aforementioned electronic tongue and immersed in the liquid sample. The working electrodes are platinum electrodes, gold electrodes, and palladium electrodes; the auxiliary electrodes are platinum disk electrodes; and the reference electrodes are platinum column electrodes. The sensor converts the solution composition information into current information and transmits it to the computer through the single chip microcomputer.

[0046] The eigenvalue data of platinum (1Hz) gold (100Hz) palladium (100Hz) frequency band is superimposed as the data collected by the sensor array of the multi-frequency pulse intelli...

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Abstract

The invention discloses a volt-ampere electronic tongue, which comprises a sensor array, a hardware circuit and intelligent algorithm analysis software, and is characterized in that: the sensor array consists of working electrodes, auxiliary electrodes and a reference electrode; each auxiliary electrode is arranged in the middle of each working electrode; the hardware circuit comprises a signal excitation unit, a signal conditioning unit and a data acquisition unit; and the intelligent algorithm analysis software comprises a sensor channel parameter setting module, a test module, a sample database information module, an intelligent sensor cleaning module, an excitation signal parameter setting module, a data storage module and a help module. The volt-ampere electronic tongue creatively changes a detection pulse signal according to the characteristic of a detection system and has the advantages of a large amount of acquired detection information, high accuracy of a detection result, wide applicable detection range, convenient operation, no need of sample pretreatment, and short detection time.

Description

technical field [0001] The invention relates to a voltammetric electronic tongue based on electrochemical detection and used for distinguishing the difference in the overall properties of liquid samples. Background technique [0002] The electronic tongue is a kind of method that utilizes low-selectivity, non-specificity, and interaction-sensitive multi-sensing arrays to sense the overall characteristic response signal of liquid samples, and conduct qualitative and quantitative analysis of samples through signal pattern recognition processing or appropriate multivariate statistical analysis methods. A new type of modern analytical instrument. It simulates the mechanism of the organism's sense of taste, senses different chemical substances through the sensor array (equivalent to the tongue in the biological system), and collects various signal information and inputs it into the computer. The computer replaces the brain function in the biological system, and analyzes and proc...

Claims

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Application Information

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IPC IPC(8): G01N27/49
Inventor 田师一邓少平
Owner 杭州晟迈智能科技有限公司
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