Portable battery-less noncontact temperature measurement system powered on-demand by human action

Author

Alghisi, D. ; Ferrari, Mauro ; Ferrari, V.

Author_Institution

Dept. of Inf. Eng., Univ. of Brescia, Brescia, Italy

fYear

2013

fDate

10-13 Sept. 2013

Firstpage

1

Lastpage

4

Abstract

This paper presents an autonomous battery-less temperature measurement system powered on-demand by human action. The conversion between the human action and electrical energy is provided by an hand-held electromagnetic (EM) converter intentionally activated by the user. The AC voltage generated by the EM converter has time-varying amplitude and frequency and is rectified by a voltage doubler active rectifier circuit. The energy harvested is stored into multiple capacitors by the innovative Sequential Charging of Storage Capacitors (SCSC) technique. With a force of about 29.4 N over 2 cm applied to the EM converter, the power management circuit is able to extract an energy of 27.5 mJ and power the noncontact temperature measurement system for about 17 s.

Keywords

capacitors; sensors; temperature measurement; AC voltage; EM converter; autonomous battery-less temperature measurement system; electrical energy; hand-held electromagnetic converter; human action; innovative sequential charging of storage capacitors technique; portable battery-less noncontact temperature measurement system; power management circuit; time-varying amplitude; voltage doubler active rectifier circuit; Batteries; Capacitors; Force; Rectifiers; Temperature measurement; Temperature sensors; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technologies & Factory Automation (ETFA), 2013 IEEE 18th Conference on

Conference_Location

Cagliari

ISSN

1946-0740

Print_ISBN

978-1-4799-0862-2

Type

conf

DOI

10.1109/ETFA.2013.6648134

Filename

6648134