Thick film resistance thermometer

Details Thick film resistance thermometer Thick film resistance thermometer

H - Electricity

01

C

356/107, 73/22

H01C 7/02 (2006.01) B05D 5/12 (2006.01) G01K 7/18 (2006.01) H01C 17/065 (2006.01)

Patent

CA 1076265

Abstract of the Disclosure A folded, highly pure platinum, thick film, path on a ceramic cylindrical substrate provides a high TCR of about 3850 ppm/°C. The path is applied by screen printing a thick film paste onto a substrate and then firing the paste at a time and temperature sufficient to bond the path to the substrate and to produce a TCR of at least about 3850 ppm/°C. The paste is comprised of about 20% by weight of an organic carrier into which 80% by weight of particles have been mixed. The particles are 96% by weight platinum particles of less than about ten microns size and 4% by weight of a contaminant-free vitreous glass frit of less than ten microns size.

295006

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