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Segmented thermistors printed by NTC nanometric paste and applied in volume air-flow sensors

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2006
Authors
Aleksić, Obrad S.
Savić, Slavica M.
Luković, Miloljub
Radulović, Katarina
Lukić, Lazar S.
Conference object (Published version)
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Abstract
An investigation path starting from (Mn,Ni,Co,Fe)3O4 nanometric powder preparation, NTC thick-film characterization, realization and optimization of new planar thermistor geometries to custom design thermistors and their application for temperature and volume airflow sensors was recently determined. The aim was to make custom designed segmented NTC thermistors printed and sintered on alumina. Two types of volume airflow sensors were formed: indirectly heated and self-heated. A pair of segmented thermistors was placed in an air guide and connected to differential branches of the Wheatstone bridge. A heater was placed in the middle between the thermistors for the indirectly heated type, while for the self-heated type the same thermistors were self-heated by a constant current source. First the thermistor responses vs. the airflow (calibration curves) were measured, and then thermistor responses in time (inertia) to fast airflow changes from the minimum to the maximum. The results obtaine...d could be applied in air conditioning for air guide flow regulation.

Keywords:
(Mn,Ni,Co,Fe)3O4 paste / Segmented thick film thermistors / Volume air-flow sensors
Source:
Materials Science Forum, 2006, 518, 247-252

DOI: 10.4028/www.scientific.net/MSF.518.247

ISSN: 0255-5476

WoS: 000239351800041

Scopus: 2-s2.0-34249697515
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/279
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