2001 Fiscal Year Final Research Report Summary

Development of Order Sensing System using Quartz-resonators

Research Project

Project/Area Number	11556021
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	展開研究
Research Field	Bioproduction chemistry/Bioorganic chemistry
Research Institution	Kochi National College of Technology
Principal Investigator	SEIICHI Kishimoto Kochi National College of Technology,Electrical.Engineering, Lecturer, 電気工学科, 講師 (90177816)
Co-Investigator(Kenkyū-buntansha)	SAWAMURA Masayoshi Kochi University, Faculty of Agriculture, Professor, 農学部, 教授 (20038300)
Project Period (FY)	1999 – 2001
Keywords	order / quartz resonator / pattern recognition / citrus fruits / main-ingredients analysis
Research Abstract	We have developed odor sensing systems using the six quartz-resonators coated with absorption films. Recognition of citrus fruits with these systems was tried. From the response pattern of resonant frequency, fine difference among thirteen kinds of citrus fruits could be discriminated. By vaporizing the order samples, it was able to discriminate with high sensitivity for a short measurement time. The optimization of the sensor-array components has been made, and for the recognition of citrus fruits, 8 kinds of membrane were tried. The pattern recognition analysis by the main-ingredients analysis and neural network analysis was carried out using the gradient of six transient response curves. We have succeeded in making a smaller system with sufficient sensitivity.