A simple electronic tongue
| Autor: | Rishemjit Kaur, Pawan Kapur, Ritesh Kumar, Saru Vig, Anupma Sharma, Amol P. Bhondekar |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
business.industry
Electronic tongue Dimensionality reduction Metals and Alloys Analytical chemistry Pattern recognition Condensed Matter Physics Signal Surfaces Coatings and Films Electronic Optical and Magnetic Materials symbols.namesake Fourier transform Audio codec Principal component analysis Materials Chemistry symbols Waveform False positive rate Artificial intelligence Electrical and Electronic Engineering business Instrumentation Mathematics |
| Zdroj: | Sensors and Actuators B: Chemical. :1046-1053 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2012.06.031 |
| Popis: | In this work a novel electronic tongue (ET) using Fourier transform impedance spectroscopy has been demonstrated. Odd random phase multisine waveform has been used as an excitation signal. Texas Instruments’ PCM2900B USB audio CODEC chip has been used as a signal generation and an acquisition module for the ET. The acquired impedance features have been further subjected to Principal Component Analysis (PCA) for dimensionality reduction and Support Vector Machines (SVM) for pattern classification. A good classification accuracy has been achieved for single specie samples (taste samples), multi-species samples (water) and complex samples (tea). Also, the performance of the proposed system has been measured in terms of qualitative performance parameters namely, false positive rate, false negative rate, sensitivity rate and specificity rate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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