artificial olfactory systems (aos) or electronic nose isenose 2000
TRANSCRIPT
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Artificial Olfactory Systems (AOS) or electronic nose ISENose 2000
www.soatec.unipr.itwww.ssmg.unipr.it
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What is an artificial olfactory system (AOS)?
An AOS is an instrument composed of a sensor array and of a suitable data treatment software, able to characterize and recognize simple and complex odours
An AOS is an instrument composed of a sensor array and of a suitable data treatment software, able to characterize and recognize simple and complex odours
This technology does not identify the single odour components and their relative quantities, but it gives a complete analysis, operating in a similar way to the human olfactive system
This technology does not identify the single odour components and their relative quantities, but it gives a complete analysis, operating in a similar way to the human olfactive system
The principle advantages of using the AOS are:
Simplicity and synthetic assessment
Immediate result
No sample pretreatment
The principle advantages of using the AOS are:
Simplicity and synthetic assessment
Immediate result
No sample pretreatment
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Artificial versus natural olfactory system
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ISE Nose2000
AOS operating system
SAMPLESENSORS
FINGERPRINT
SOFTWARE
DFA RESULT
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Optimized for “QUALITY CONTROL” applications
AOS with MOS sensors
Packaging quality control
Evaluation and control of raw materials
Olive oil defects
Paperboard quality control
Parmigiano Reggiano cheese quality control
PRACTICAL APPLICATIONS
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Main application: quality controlfor food packaging
Deep Knowledge of the Problem, acquired within the frame of cooperation with Barilla Alimentare S.p.A.
Optimisation of Hardware configuration and Software procedures for Quality Control application
Software Processing module based on creation and maintenance of a dynamic Data Base of reference samples (“Bad” and “Good” samples)
Fully Assisted operation and classification procedure
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1. ISENOSE 2000 main unit
2. Self-sampling unit
3. Supervision PC (Wintel configuration)
The “ISENose2000” Artificial Olfactory Device
The system is composed by:
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ISENose2000 Technology
• The ISENose2000 system is based on MOS thick- and/or thin-film chemical gas sensors
Air Flow in Air Flow out
Humiditysensor
Temperaturesensor
Metal-OxideGas Chemical
Sensors
Sensors chamber
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16-Position Self-sampler
ProprietaryDesign
• Inexpensive, easy-to-use
• Optimized for QualityControl activity on sample batches
• Completely SW-driven sampleselection, data acquisition andcleaning of the line
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Detail of vial connection
• Each pair of needles is used for one vial where a given sample of the desired material has been inserted
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Inside the nose: the MOS sensors chamber
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Top view
TEMPERATURESENSOR
HUMIDITYSENSOR
AIR INLETAIR OUTLET
MOSSENSORS
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Working principle of MOS sensors
½ O2 + (SnO2-X)* O_(SnO2-X)
CO + O_(SnO2-X) CO2 + (SnO2-X)*
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SENSOR DATA TO THE PCSENSORSCHAMBER
MASS FLOW CONTROLLER
INPUT: GC AIR SOURCE
16 SAMPLE VIALS
TUBING
CONNECTORS
OUTPUT: EXTERNAL AIR
Air flow control system
4-Ways Valve
16 Ways Valve (Autosampler)
42
13
Serial connection between PC and ISENOSE main unit PC
Schematic of operation
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Application software installation
Typical (Data acquisition, visualization, processing with Statistical tools)
Quality Control Ready-to-use application for classification and recognition of samples in Q.C. applications
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Program opening page
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Method module
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Channel description
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Analysis in progress
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Fingerprint
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DFA Analysis represented by poligonals
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3D View
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3D View