TY - GEN
T1 - Development of basic system of ingestible core body thermometer with small size and low energy consumption powered by gastric acid battery
AU - Yoshida, Shinya
AU - Miyaguchi, Hiroshi
AU - Nakamura, Tsutomu
N1 - Funding Information:
ACKNOWLEDGMENT This research is partially supported by the Center of Innovation Program from Japan and Nakatani Foundation.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/21
Y1 - 2017/12/21
N2 - In this study, we have developed a basic system of an ingestible core body thermometer powered by a gastric acid battery. A custom integrated circuit (IC) with voltage boosting, coding, modulating and transmitting functions was prototyped. A small gastric acid battery based on a pair of Mg and Pt thin-film electrodes was also fabricated by microfabrication technology. Charge storage in a storage capacitor was succeeded with the battery and IC at the boosted voltage of about 3 V. Then, an evaluation board of this system was prepared. The footprint for mounting the essential electrical components was reasonably small, which suggested the possibility to miniaturize this system to a tablet size. Magnetic-field coupling telecommunication of measured temperature data between a small transmission coil and a loop antenna as a receiver was successfully demonstrated. The power consumption for one time temperature measurement and telecommunication measured 10∼30 pJ. These results proved the feasibility of the ingestible thermometer system.
AB - In this study, we have developed a basic system of an ingestible core body thermometer powered by a gastric acid battery. A custom integrated circuit (IC) with voltage boosting, coding, modulating and transmitting functions was prototyped. A small gastric acid battery based on a pair of Mg and Pt thin-film electrodes was also fabricated by microfabrication technology. Charge storage in a storage capacitor was succeeded with the battery and IC at the boosted voltage of about 3 V. Then, an evaluation board of this system was prepared. The footprint for mounting the essential electrical components was reasonably small, which suggested the possibility to miniaturize this system to a tablet size. Magnetic-field coupling telecommunication of measured temperature data between a small transmission coil and a loop antenna as a receiver was successfully demonstrated. The power consumption for one time temperature measurement and telecommunication measured 10∼30 pJ. These results proved the feasibility of the ingestible thermometer system.
KW - core body temperature
KW - gastric acid battery
KW - ingestible sensor
UR - http://www.scopus.com/inward/record.url?scp=85044327298&partnerID=8YFLogxK
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U2 - 10.1109/ICSENS.2017.8234292
DO - 10.1109/ICSENS.2017.8234292
M3 - Conference contribution
AN - SCOPUS:85044327298
T3 - Proceedings of IEEE Sensors
SP - 1
EP - 3
BT - IEEE SENSORS 2017 - Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th IEEE SENSORS Conference, ICSENS 2017
Y2 - 30 October 2017 through 1 November 2017
ER -