Patent · US Expired

Electric resistance temperature sensor

US5889460A · kind A · utility

18Cited by

8References

18Claims

0Family size

Assignee

E.G.O. Elektro-Geraetebau GmbH · DE

Inventors

Volker Bachmann · Eriskirch, DE
Lutz Ose · Sternenfels, DE

Key dates

Filing date	May 30, 1997
Grant date	Mar 30, 1999
Priority date	—
Expiry date	May 30, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG01K7/18
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An electrical resistance temperature sensor (11) contained in a stainless steel, tubular jacket (12), which has a very small diameter of approximately 1 mm, a platinum resistance coil (18) running between two joining bolts (14, 19). The resistance coil with a positive temperature characteristic of the resistance is placed in an embedding medium (17), which comprises a mixture of magnesium oxide or aluminium oxide and cerium dioxide. For use as an integrating temperature sensor for a catalytic converter, said adequately flexible temperature sensor can be wound into a roll of smooth and corrugated metal sheets and fixed by soldering in vacuo.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.