A novel temperature sensor is described, consisting essentially of a composite platinum film firmly bonded to a ceramic substrate. The film is protected from the corrosive effects of gaseous environments by an overglaze of impervious glass. The sensor possesses short and long term electrical characteristics similar to those of wire-wound platinum resistance thermometers, but is less costly. It can operate over a wide range of temperatures up to about 1,000 degrees C. The versatile construction of the sensor renders it, in its cylindrical form, eminently suitable for monitoring the thermal changes occurring within catalyst emission control units on internal combustion engines. /GMRL/

Media Info

  • Pagination: 4 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00099118
  • Record Type: Publication
  • Report/Paper Numbers: SAE #760225
  • Files: TRIS
  • Created Date: Oct 18 1975 12:00AM