NDLI: Thick-film inclinometer based on free convective motion of an heating air mass

Content Provider	IEEE Xplore Digital Library
Author	Crescini, D. Marioli, D. Romani, A. Sardini, E. Taroni, A.
Copyright Year	2004
Description	Author affiliation: Dipt. di Elettronica per l'Automazione, Brescia Univ., Italy (Crescini, D.; Marioli, D.; Romani, A.; Sardini, E.; Taroni, A.)
Abstract	In this application, a thick-film tilt sensor has been developed, based on heat transfer by natural convection. The device measures internal changes in heat transfer due to the inclination. The device is functionally equivalent to a traditional proof-mass accelerometer. The proof mass in the new thick-film sensor is a gas. The gaseous proof-mass provides great advantages over the use of the traditional solid proof mass. A conditioning electronic circuit amplifies the signal variation induced by the inclination, compensating for the deviation due to the initial asymmetrical values of the bridge arms and their slow variations. Preliminary tests on the first prototypes show an accuracy of about 2% full scale output, repeatability of about 0.2/spl deg/ and resolution better than 0.1/spl deg/ over a /spl plusmn/20/spl deg/ range.
Sponsorship	IEEE Instrumentation and Measurement Soc
Starting Page	1035
Ending Page	1038
File Size	273919
Page Count	4
File Format	PDF
ISBN	078038248X
ISSN	10915281
DOI	10.1109/IMTC.2004.1351239
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-05-18
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heating Thick film sensors Heat transfer Thermal sensors Accelerometers Gas detectors Solids Electronic circuits Bridge circuits Arm
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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