Odor Sensing System Using Preconcentrator with Variable Temperature

Conference · Fri Jan 01 00:00:00 EST 1999

OSTI ID:15001871

Isaka, Y ^[1]; Nakamoto, Takamichi ^[2]; Moriizumi, T ^[1]; Grate, Jay W ^[3]

---

1. Tokyo Institute of Technology
2. ASSOC WESTERN UNIVERSITY
3. BATTELLE (PACIFIC NW LAB)

An odor sensing system using QCM gas sensor array and pattern recognition technique is useful to identify various kinds of odors. A preconcentrator with variable temperature is promising to obtain further pattern separation after the appropriate temperature changes, whereas it has been so far used to enhance sensor sensitivity. After the preconcentrator collects the vapors, it is heated so that they can be thermally desorbed. The combination of the preconcentrator with the sensor array enhances the capability of discrimination among vapors since their desorption temperatures depend upon vapor kinds.

• Research Organization: Pacific Northwest National Lab., Richland, WA (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 15001871
• Report Number(s): PNNL-SA-30666; NN2001000; TRN: US200406%%303
• Resource Relation: Conference: Solid-state sensors and actuators; Transducers '99, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 Jan 1999
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ODOR
PATTERN RECOGNITION
CONCENTRATORS
MONITORS
GAS ANALYSIS
SENSOR ARRAY
ODOR SENSOR
PRECONCENTRATOR