A CMOS Watchdog Sensor for Certifying the Quality of Various Perishables with a Wider Activation Energy

• UENO Ken

  Department of Electrical Engineering, Hokkaido University

• HIROSE Tetsuya

  Department of Electrical Engineering, Hokkaido University

• ASAI Tetsuya

  Department of Electrical Engineering, Hokkaido University

• AMEMIYA Yoshihito

  Department of Electrical Engineering, Hokkaido University

Abstract

We developed a CMOS watchdog sensor that simulates the changes in quality of perishables such as farm and marine products. The sensor can imitate a chemical reaction that causes the changes in the quality of perishables, with a wide range of activation energy from 0.1eV to 0.7eV. Attached to perishable goods, the sensor simulates the deterioration of the goods caused by surrounding temperatures. By reading the output of the sensor, consumers can determine whether the goods are fresh or not. This sensor consists of subthreshold CMOS circuits with a low-power consumption of 5μW or less.

Journal

• IEICE Trans. Communications and Computer, A

  IEICE Trans. Communications and Computer, A 89 (4), 902-907, 2006-04-01

  The Institute of Electronics, Information and Communication Engineers

Keywords

• CMOS
• sensor
• subthreshold
• translinear
• low power
• quality guarantee

Details

• CRID: 1571135652582836480
• NII Article ID: 110007502790
• NII Book ID: AA10826239
• ISSN: 09168508
• Text Lang: en
• Data Source:
  • CiNii Articles