TOWARDS THE E ELECTRONIC NOSE E input 中 input ler bidden lare output farer
INTRODUCTION factory bait Organic Chemistry Signal Processing Mdde r ELECTRONIC concha Olfactory Physiology NOSE Chemical Sensors/ Pattern Recognition Computational learning
Introduction: . . . . . Olfactory Physiology Organic Chemistry Signal Processing Pattern Recognition Computational Learning Electronic Nose Chemical Sensors / Analytical Chemistry
ELECTRONIC NOSE SYSTEMS Odorant molecules Chemical Information CIM Coated Sensor Raw electrical signal Sensor processor Processed electrical signal Signal Processor Denoised Electrical signal Feature Extractor Il Relevan nt features Knowledge Pattern recognition Base Training & Testing dentification
Electronic Nose Systems CIM Coated Sensor Sensor Processor Signal Processor Pattern Recognition Knowledge Base Odorant Molecules Identification Raw electrical signal Processed Electrical signal Denoised Electrical signal Training & Testing Chemical Information Feature Extractor Relevant features
uN Electronic Nose System Sensor Pattern Country of Manufacturer Technology f of Recognition Price Origin WMA Airsense MOS ANN DC PCA Germany y Analysentechnik Gmbh 43.000 Fox x000 QCM. SAW AlphaMOS CP MOS 6-24|ANN,DFA,PCA/20.000 100,000 france Aromascan 20.000- Osme Tech Inc CP ANN FL 75.000 UK BH114 ANN. CA DA Bloodhound sensors inc CP U.K PCA Cyranose 320 Cyrano Sciences Ltd PCA 5.000 USA Enose 5000 QCM, MOS Marconi ltd 8-28 ANN. DA PCA UK CP SAW Gu<o Znose 4200 Electronic sensor Tech SAW. GC 6-15 SPR USA 25000 QMB6-HS40XL OCM HKR Sensorsystem gmbh 6 ANN. PCA Germany MOSES II Lennartz Electronik gmbh QCM, MOS 16 ANN. PCA ? Germany NST 3210 MOS FET 40,000- Nordic sensor technologies OCM ANN PCA 60.000 Sweden OligoSense OligoSense CP ND/PR ND/PR Belgium Daimler rst rostock MOS ANN, PCA50,000 Germany SMart nose 300 n/A DA PCA Switzerland SMart n VOLmeter MoTech Sensorik, Gmbh QCM, MOS ANN PCA Germany FreshSense Element Ltd MOS ND/PR ND/PR Iceland 4440B Various HP- Agilent Technologies n/A 79900 Chemometrics USA VaporLab SAW ND/PR USA MicroSensor lnc 5,000 Libra nose 8 Technobioch M ND/PR 5,000 Italy
Electronic Nose System Manufacturer Sensor Technology # of Sensors Pattern Recognition Algorithms Price ($) Country of Origin WMA Airsense Analysentechnik GmbH MOS 10 ANN, DC, PCA 20,000- 43,000 Germany Fox x000 AlphaMOS QCM, SAW, CP, MOS 6-24 ANN, DFA, PCA 20,000- 100,000 France AromaScan OsmeTech Inc. CP 48 ANN, FL 20,000- 75,000 U.K. BH114 Bloodhound Sensors Inc. CP 14 ANN, CA, DA, PCA ? U.K. Cyranose 320 Cyrano Sciences Ltd. CP 32 PCA 5,000 USA Enose 5000 Marconi Ltd. QCM, MOS, CP, SAW 8-28 ANN, DA, PCA ? U.K. Znose 4200 Electronic Sensor Tech. SAW, GC 6-15 SPR 19,500- 25,000 USA QMB6 – HS40XL HKR Sensorsystem GmbH QCM 6 ANN, PCA ? Germany MOSES II Lennartz Electronik GmbH QCM, MOS 16 ANN, PCA ? Germany NST 3210 Nordic Sensor Technologies MOS, FET, QCM 22 ANN, PCA 40,000- 60,000 Sweden OligoSense OligoSense CP ND/PR ND/PR ? Belgium SAM Daimler RST Rostock QCM, SAW, MOS 6-10 ANN, PCA 50,000 Germany SMart Nose 300 SMart Nose MS N/A DA, PCA ? Switzerland VOCmeter MoTech Sensorik, GmbH QCM, MOS 8 ANN, PCA ? Germany FreshSense Element Ltd. MOS ND/PR ND/PR ? Iceland 4440B HP – Agilent Technologies MS N/A Various Chemometrics 79,900 USA VaporLab MicroSensor Inc. SAW 2 ND/PR 5,000 USA Libra Nose Technobiochip QCM 8 ND/PR 5,000 Italy Commercially Available Systems
BLOCK DIAGRAM OF THE EXPERIMENTAL SETUP PERSONAL MASS FLOW NETWORK COMPUTER CONTROLLER ANALYZER CARRIER GASI (NITROGEN) MULTIPLEXER VOC 3-WAY SENSOR CELL BUBBLERS VALVE 6 QCMs Bi-directional information flow nidirectional information flow as ilow
Block Diagram of the Experimental Setup PERSONAL COMPUTER MASS FLOW CONTROLLER NETWORK ANALYZER SENSOR CELL 6 QCMs VOC BUBBLERS Bi - directional information flow Unidirectional information flow Gas flow 3-WAY VALVE MULTIPLEXER CARRIER GAS (NITROGEN)
EXPERIMENTAL SETUP Mass flow Network Controller Analyzer PC Switc hing g ° Nitrogen Box VOC Sensor vOC in Cell bubbler
Experimental Setup Switching Box Mass Flow Controller Network Analyzer VOC in bubbler Nitrogen VOC PC Sensor Cell
EXPERIMENTAL SETUP Mass flow Controller Mass flot eter Network Analyzer Post-It notes Sensor Bubbler Switching BoX
EXPERIMENTAL SETUP Mass Flow Controller Network Analyzer Gas Bubbler Sensor Cell Mass Flow Meter Switching Box Post-It notes
HOW DOES ODOR SIGNAL LOOK IKE Conc.14035010517570245700ppr Coating APZ PIB 吕09:50:100 3第烈:40 DEGA SG 09:50100350200250300350:400450 ov275 10050200256300:350:400450 PDPP 0100150200250300350400450 Time, min
How Does Odor Signal look Like?
IDENTIFICATION OF VOCS Raw sensor readings(6-D) Filtering, Normalization Prepi De-trending etc Fuzzy nose(nose) Increasing pattern Feature range stretching, or Separabilit Nonlinear cluster transformation Neural Network Multilayer perceptron Training LEARN++(for incremental learning eural network Classification Validation VOC Identification
Identification of VOCs Preprocessing Increasing Pattern Separability Neural Network Training Neural Network Validation VOC Identification Raw Sensor Readings (6-D) Filtering, Normalization, De-trending, etc. Fuzzy nose (FNOSE), Feature range stretching, or Nonlinear cluster transformation Multilayer perceptron LEARN++ (for incremental learning) Classification . . . .
