A Wireless-Transfer-Based Hydrogen Gas Sensing System With a Pd/AlGaN/GaN Heterostructure Field-Effect Transistor (HFET)

In this paper, a wireless hydrogen sensing system using a Pd/AlGaN/GaN heterostructure field-effect transistor (HFET) is developed and demonstrated. This HFET device shows good hydrogen sensing performance, including higher drain current variation (0.17 mA @ 1 ppm H 2 /air gas), fast response speed,...

Full description

Saved in:
Bibliographic Details
Published in:IEEE sensors journal 2013-06, Vol.13 (6), p.2299-2304
Main Authors: Hsu, Chi-Shiang, Lin, Kun-Wei, Liu, Wen-Chau
Format: Article
Language:English
Subjects:
Algorithms
Aluminum gallium nitrides
Detection
Gallium nitride
Gallium nitrides
Grey polynomial differential model (GPDM)
HEMTs
heterostructure field-effect transistor (HFET)
Heterostructures
Hydrogen
hydrogen sensing system
MODFETs
Palladium
Pd/AlGaN/GaN
Semiconductor devices
Sensors
Transistors
Wireless communication
Wireless communications
Wireless sensor networks
wireless transfer
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, a wireless hydrogen sensing system using a Pd/AlGaN/GaN heterostructure field-effect transistor (HFET) is developed and demonstrated. This HFET device shows good hydrogen sensing performance, including higher drain current variation (0.17 mA @ 1 ppm H 2 /air gas), fast response speed, and superior repeatability behaviors. For the sensing application, a readout circuit is designed to display the value of hydrogen concentration. Then, these data are fed into single chip microprocessor for later processing and wireless transmission. In addition, a grey polynomial differential model algorithm is employed to significantly reduce the redundant data for alleviate the wireless transmission load. The wireless monitoring of hydrogen concentration in a remote site longer than 50 m in distance is successfully demonstrated. From the experimental results, the proposed wireless hydrogen sensing system shows the advantages of high hydrogen sensing performance, easy operation, low cost, high portability, and effective wireless transmission.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2013.2252527