TEI of Piraeus – Dept. of Electronics Eng.
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TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Collaboration in SENSORS-IPressure Sensor Fabrication – Read-out Electronics
fx,r Frequency outCx Capacitive sensing element Cr Reference capacitorVc Control signal which switches between Cx and Cr
Vh Hysterisis of the Schmitt trigger
TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Collaboration in SENSORS-IIChemical Sensors – Electronic ‘nose’
Development of Methodology, Development of electric characterization station, Sensor fabrication, Development of Read-out electronics, Sensor packaging, Sensor optimization and characterization
Fabrication on Si SubstrateFabrication on Quartz SubstrateSchematic
(interacting electrodes)
TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Collaboration in SENSORS-IIChemical Sensors – Electronic ‘nose’
Sensor characterization station (diagram)
TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Collaboration in SENSORS-IIChemical Sensors – Electronic ‘nose’
Sensor characterization station (actual)
CAV 414 AD7708
Sensor Array
Flow in
Sensors & Optoelectronics Group & IMELCollaboration in SENSORS-II
Chemical Sensors – Electronic ‘nose’The Read-out Electronic station developed
TEI of Piraeus – Dept. of Electronics Eng.
CAV 414
AD7708
TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Collaboration in SENSORS-IIIAcceleration Sensors
100 μm100 μm100 μm
Acceleration directionPorous Silicon
Silicon
HeaterThermopiles
Development of Methodology and Electric Characterization Station,
Sensor Packaging, Development of Read-out
Electronics,Sensor Optimization and
characterization
TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Collaboration in SENSORS-IIIAcceleration Sensors
Electronics for the Accelerometer Control System
Sensor
Heater
S1S2
D
Multiplexer
DAC16-bit
IN-AMP
Low Noise OP-AMP
Low-PassPassive Filter
Rs
IN-AMP
Low-PassButterworth Filter
ADC16-bit
1.6Mhz Clock
R2R1
SP
I
UA
RT
DATA ACQUISITION CIRCUIT
CONTROL & SUPPLY CIRCUIT
SERIALCOMMUNICATION
Optocoupler
Micro-controller
Thermopiles
TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Collaboration in SENSORS-IIIAcceleration Sensors
Accelerometer characterization station I : 2-200 Hz (Electromagnetic)
TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Collaboration in SENSORS-IIIAcceleration Sensors
Accelerometer characterization station II : 0-5 Hz (Electromechanical)
Motion PlatformDC Motor
Motor Controller Manual control
Encoder
TEI of Piraeus – Dept. of Electronics Eng.Sensors & Optoelectronics Group & IMEL
Future research plans Design and development of
station for sensors measurement, for research and for student training,
Design and development of sensor read-out electronics based on commercially available devices, such as AD7755, FPGA (digital & mixed signal)
Use of micro-controllers for the development of applications such as RFIDs
Further development of sensor networks for telemetry / telecontrol / environmental monitoring applications
Development of autonomous systems
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