An Optical Sensor for Measuring the Degree of a Parched Coffee Berry

• CHEN Jing

  Faculty of Education, Fukui University

• UEDA Masahiro

  Faculty of Education, Fukui University

• TANIGUCHI Keiji

  Department of Information Science, Faculty of Engineering, Fukui University

• ASADA Katsuhiko

  Department of Information Science, Faculty of Engineering, Fukui University

Bibliographic Information

Other Title

• コーヒー豆のばい煎度測定光センサー

Abstract

An optical sensor system has been proposed for measuring the degree of parched coffee berry. The principle of the method is based on a scattering intensity of the light on parched coffee berry. The system consists of a sensor head including light source and light receiver, an amplifier, an A/D converter, a computer and a display. The results show that the optimum degree berry can be obtained when the scattering intensity is about 83% of the maximum intensity and that the scattering intensity depends only on the degree of parched coffee berry and does not depend on the wavelength of the light source.

Journal

• レーザー研究

  レーザー研究 25 (7), 529-530, 1997-07-15

  レーザー学会

Keywords

• Optical sensor
• Parche coffee berry

Details

• CRID: 1572543023945483392
• NII Article ID: 10002044309
• NII Book ID: AN00255326
• ISSN: 03870200
• Web Site: http://hdl.handle.net/10098/1497
• Text Lang: ja
• Data Source:
  • CiNii Articles