Electronic Nose (E-Nose) Using Micro Electro Mechanical Systems (MEMS)
Towards the Electronic Nose
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description
Towards the Electronic Nose. Electronic Nose. . . . . . Introduction:. Organic Chemistry. Signal Processing. Olfactory Physiology. Chemical Sensors / Analytical Chemistry. Computational Learning. Pattern Recognition. Electronic Nose Systems. Commercially Available Systems. - PowerPoint PPT Presentation
Transcript of Towards the Electronic Nose
Introduction:
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Olfactory Physiology
Organic Chemistry
Signal Processing
Pattern Recognition Computational Learning
ElectronicNose
Chemical Sensors /Analytical Chemistry
Electronic Nose Systems
Com
mer
cial
ly A
vaila
ble
Syst
ems
Block Diagram of theExperimental Setup
Experimental Setup
Switching Box
Mass FlowController
NetworkAnalyzer
VOC inbubbler
NitrogenVOC
PC
SensorCell
EXPERIMENTAL SETUP
Mass FlowController
Network Analyzer
Gas Bubbler
SensorCell
Mass FlowMeter
SwitchingBox
Post-Itnotes
How Does Odor Signallook Like?
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
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