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Design of test hardware for characterization of key parameters of analog gas sensors
Linköping University, Department of Electrical Engineering, Electronic Devices.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Hydrogen sensors are essential to facilitate the detection of accidental hydrogenreleases wherever hydrogen will be produced, distributed, stored, and used. Comparedto the helium detection: hydrogen is cheaper than helium, no need for avacuum and the lower cost of producing the instruments. Thus, hydrogen leakdetectors are used in variety of applications such as localization of telephony cabledamages, finding leaks in fuel tanks and quality control in heating, ventilating, andair conditioning (HVAC) and refrigeration systems. This thesis work combines thedesign and implentation of test hardware, software programming and the characterizationof critical parameter of analog hydrogen sensor for leak detecion systemdevelopment.Controller area network (CAN) protocol for data communication is used in theproject work. With the benefit of CAN over multiple device communication, thetest hardware is designed for multichannel testing. Graphical LabVIEW software isdeveloped and programmed basically for instrumental control and sensor responseacquisition. Finally, a few experiments have been conducted to estimate some keyparameters of the gas sensors such as a sensor noise level and sensor responsesover different hydrogen concentrations.

Place, publisher, year, edition, pages
2011. , 47 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-71209ISRN: LiTH-ISY-EX--11/4414--SEOAI: diva2:446265
Subject / course
Electronic Devices
2011-06-07, Nämnaren, 13:15 (English)
Available from: 2011-10-06 Created: 2011-10-06 Last updated: 2011-10-10Bibliographically approved

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Tanacharoenwat, Watchanun
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