A SiGe microbolometer interface for low-power microcontrolled applications

Author

Fuentes, H. ; García-Romeo, D. ; Medrano, N. ; Calvo, B. ; Martínez, P.A. ; Gimeno, C. ; Sanz, M.T. ; Moreno, M. ; Torres, A.

Author_Institution

Group of Electron. Design, Univ. of Zaragoza, Zaragoza, Spain

fYear

2012

Firstpage

1

Lastpage

4

Abstract

This paper presents a conditioning system for an amorphous silicon germanium (a-SiGe:H, B) microbolometer array for detection of heat sources in low-power sensing systems. It mainly consists of an amplification and switching circuit that adapts the small signal provided by the resistive microbolometer cell connected in a Wheatstone bridge to a voltage signal which can be easily read by a microcontroller. The low energy consumption of the proposed system makes it compatible with wireless sensor network applications.

Keywords

Ge-Si alloys; amorphous semiconductors; amplification; bolometers; boron; computerised instrumentation; energy consumption; hydrogen; infrared detectors; microcontrollers; microsensors; wireless sensor networks; Wheatstone bridge; amplification; conditioning system; energy onsumption; heat source detection; microbolometer interface; microcontroller; resistive microbolometer cell; switching circuit; wireless sensor network; Batteries; Bolometers; Microcontrollers; Power demand; Temperature measurement; Wireless sensor networks; Microbolometer; Sensor interface; SiGe; smart sensor; wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (LASCAS), 2012 IEEE Third Latin American Symposium on

Conference_Location

Playa del Carmen

Print_ISBN

978-1-4673-1207-3

Type

conf

DOI

10.1109/LASCAS.2012.6180355

Filename

6180355