ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
An investigation path starting from (Mn,Ni,Co,Fe)3O4 nanometric powder preparation,NTC thick-film characterization, realization and optimization of new planar thermistor geometriesto custom design thermistors and their application for temperature and volume airflow sensors wasrecently determined. The aim was to make custom designed segmented NTC thermistors printedand sintered on alumina. Two types of volume airflow sensors were formed: indirectly heated andself-heated. A pair of segmented thermistors was placed in an air guide and connected to differentialbranches of the Wheatstone bridge. A heater was placed in the middle between the thermistors forthe indirectly heated type, while for the self-heated type the same thermistors were self-heated by aconstant current source. First the thermistor responses vs. the airflow (calibration curves) weremeasured, and then thermistor responses in time (inertia) to fast airflow changes from the minimumto the maxi
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/13/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.518.247.pdf
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