학술논문

Versatile headspace and electronics for measurements with gas sensor arrays
Document Type
Conference
Source
Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference [Cat. No. 00CH37066] Instrumentation and measurement technology Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE. 3:1458-1462 vol.3 2000
Subject
Components, Circuits, Devices and Systems
Sensor arrays
Gas detectors
Chemical sensors
Temperature sensors
Sensor systems
Impedance measurement
Frequency measurement
Chemical analysis
Chemical elements
Control systems
Language
ISSN
1091-5281
Abstract
A new multisensor headspace and electronics for gas detection are presented. The system is PC-based and fully software controllable and reconfigurable. It was designed to allow for a very versatile use with different metal oxide sensor elements. In particular, the system supports different measuring techniques such as sensor impedance measurement in a frequency range spanning from DC to 15 MHz, and sensor gas sensitivity measurement when the temperature follows an arbitrary-defined trend. Some preliminary results concerning wine classification are also presented.