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IEICE TRANSACTIONS on Fundamentals

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

Ken UENO, Tetsuya HIROSE, Tetsuya ASAI, Yoshihito AMEMIYA

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Summary :

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 0.1 eV to 0.7 eV. 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 5 µW or less.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E89-A No.4 pp.902-907
Publication Date
2006/04/01
Publicized
Online ISSN
1745-1337
DOI
10.1093/ietfec/e89-a.4.902
Type of Manuscript
Special Section PAPER (Special Section on Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa)
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