IEEE Sensors Journal

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Effects of electrode configuration on polymer carbon-black composite chemical vapor sensor performance
IEEE Sensors Journal - Tập 2 Số 3 - Trang 160-168 - 2002
B. Matthews, Jing Li, S. Sunshine, L. Lerner, J.W. Judy
The performance of polymer carbon-black composite chemical vapor sensors as a function of underlying electrode size and geometry has been studied. The sensor performance parameters investigated were sensor response magnitude to a toluene analyte (100, 500, and 1000 ppm), fundamental sensor noise in the presence of air, and two concentrations of toluene (100 and 500 ppm), and signal-to-noise ratio ...... hiện toàn bộ
#Chemical sensors #Electrodes #Signal to noise ratio #Sensor arrays #Geometry #Polymer films #Signal analysis #Performance analysis #Testing #Plastic insulation
A portable electronic nose based on embedded PC technology and GNU/Linux: hardware, software and applications
IEEE Sensors Journal - Tập 2 Số 3 - Trang 235-246 - 2002
A. Perera, T. Sundic, A. Pardo, R. Gutierrez-Osuna, S. Marco
This paper describes a portable electronic nose based on embedded PC technology. The instrument combines a small footprint with the versatility offered by embedded technology in terms of software development and digital communications services. A summary of the proposed hardware and software solutions is provided with an emphasis on data processing. Data evaluation procedures available in the inst...... hiện toàn bộ
#Electronic noses #Linux #Hardware #Embedded software #Application software #Instruments #Linear discriminant analysis #Principal component analysis #Programming #Digital communication
Medical diagnosis with the gradient microarray of the KAMINA
IEEE Sensors Journal - Tập 2 Số 3 - Trang 254-259 - 2002
I. Koronczi, K. Ziegler, U. Kruger, J. Goschnick
Investigations with human breath and cultures of oral bacteria have been performed to examine the analytical performance of the KAMINA gradient microarray based on a segmented metal oxide layer. Standard microarray chips with 38 segments, one chip equipped with platinum doped SnO/sub 2/ and the other with WO/sub 3/, were inspected. The results show that the gradient microarray is able to detect ac...... hiện toàn bộ
#Medical diagnosis #Microorganisms #Humans #Gases #Principal component analysis #Performance analysis #Platinum #Medical diagnostic imaging #Ethanol #Pattern analysis
Learning from data: a tutorial with emphasis on modern pattern recognition methods
IEEE Sensors Journal - Tập 2 Số 3 - Trang 203-217 - 2002
M. Pardo, G. Sberveglieri
The purposes of this tutorial are twofold. First, it reviews the classical statistical learning scenario by highlighting its fundamental taxonomies and its key aspects. The second aim of the paper is to introduce some modern (ensembles) methods developed inside the machine learning field. The tutorial starts by putting the topic of supervised learning into the broader context of data analysis and ...... hiện toàn bộ
#Tutorial #Pattern recognition #Sensor arrays #Data analysis #Electronic noses #Principal component analysis #Chemical sensors #Machine learning #Neural networks #Sensor phenomena and characterization
Bioelectronic sniffer device for trimethylamine vapor using flavin containing monooxygenase
IEEE Sensors Journal - Tập 2 Số 3 - Trang 133-139 - 2002
K. Mitsubayashi, Y. Hashimoto
A bioelectronic sniffer device for trimethylamine (TMA) in the gas phase "fish-odor substance" was constructed using a flavin-containing monooxygenase 3 (FMO3, one of xeno-biotic metabolizing enzymes) and a reaction unit with both gas and liquid cells separated by a porous poly(tetrafluoroethylene) diaphragm membrane (pore size: 30-60 /spl mu/m, thickness: 0.20 mm). A substrate regeneration cycle ...... hiện toàn bộ
#Humans #Marine animals #Biomembranes #Chemical industry #Gas detectors #Biochemistry #Time measurement #Reproducibility of results #Phase detection
Gas sensitivity comparison of polymer coated SAW and STW resonators operating at the same acoustic wave length
IEEE Sensors Journal - Tập 2 Số 3 - Trang 150-159 - 2002
I.D. Avramov, M. Rapp, S. Kurosawa, P. Krawczak, E.I. Radeva
Results from systematic gas sensing experiments on polymer coated surface-transverse-wave (STW) and surface-acoustic-wave (SAW) based two-port resonators on rotated Y-cut quartz, operating at the same acoustic wavelength of 7.22 /spl mu/m, are presented. The acoustic devices are coated with chemosensitive films of different viscoelastic properties and thicknesses, such as solid hexamethyldisiloxan...... hiện toàn bộ
#Polymer films #Surface acoustic waves #Acoustic waves #Chemical sensors #Surface acoustic wave devices #Acoustic devices #Solids #Acoustic sensors #Chemical analysis #Phase noise
Air quality monitoring and fire detection with the Karlsruhe electronic micronose KAMINA
IEEE Sensors Journal - Tập 2 Số 3 - Trang 179-188 - 2002
C. Arnold, M. Harms, J. Goschnick
An indoor air monitoring device is one of the most prominent consumer applications of an electronic nose (EN). Integral gas analysis similar to biogenic odor perception can be a versatile tool to obtain continuous information about pollutants, odors, and air compositions indicating gaseous precursors of dangers such as fires. However, an EN to be used as a common household device has to combine hi...... hiện toàn bộ
#Monitoring #Fires #Temperature sensors #Biomembranes #Electronic noses #Information analysis #Air pollution #Energy consumption #Gas detectors #Electrodes
Pattern analysis for machine olfaction: a review
IEEE Sensors Journal - Tập 2 Số 3 - Trang 189-202 - 2002
R. Gutierrez-Osuna
Pattern analysis constitutes a critical building block in the development of gas sensor array instruments capable of detecting, identifying, and measuring volatile compounds, a technology that has been proposed as an artificial substitute for the human olfactory system. The successful design of a pattern analysis system for machine olfaction requires a careful consideration of the various issues i...... hiện toàn bộ
#Pattern analysis #Sensor arrays #Feature extraction #Gas detectors #Instruments #Humans #Olfactory #Signal design #Signal processing #Pattern recognition
Classification of bacteria responsible for ENT and eye infections using the Cyranose system
IEEE Sensors Journal - Tập 2 Số 3 - Trang 247-253 - 2002
P. Boilot, E.L. Hines, J.W. Gardner, R. Pitt, S. John, J. Mitchell, D.W. Morgan
The Cyranose 320 (Cyrano Sciences Inc., USA), comprising an array of 32 polymer carbon black composite sensors, has been used to identify species of bacteria commonly associated with medical conditions. Results from two experiments are presented: one on bacteria causing eye infections and one on a new series of tests on bacteria responsible for some ear, nose, and throat (ENT) diseases. For the ey...... hiện toàn bộ
#Microorganisms #Sensor arrays #Medical conditions #Medical services #Principal component analysis #Polymers #Testing #Ear #Nose #Diseases
Distributed odor source localization
IEEE Sensors Journal - Tập 2 Số 3 - Trang 260-271 - 2002
A.T. Hayes, A. Martinoli, R.M. Goodman
This paper presents an investigation of odor localization by groups of autonomous mobile robots. First, we describe a distributed algorithm by which groups of agents can solve the full odor localization task. Next, we establish that conducting polymer-based odor sensors possess the combination of speed and sensitivity necessary to enable real world odor plume tracing and we demonstrate that simple...... hiện toàn bộ
#Robot sensing systems #Animals #Robot kinematics #Mobile robots #Chemical engineering #Robustness #Particle swarm optimization #Chemical hazards #Distributed algorithms #Polymers
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