Patent · US Active

Method and apparatus for calibrating a thermometer in situ

US9091601B2 · kind B2 · utility

3Cited by

19References

28Claims

0Family size

Assignee

ENDRESS+HAUSER WETZER GMBH+CO. KG · DE

Inventors

Marc Schalles · Erfurt, DE
Dirk Boguhn · Munich, DE
Peter Seefeld · Bad Wimpfen, DE
Reinhard Buchner · Nesselwang, DE

Key dates

Filing date	Aug 25, 2011
Grant date	Jul 28, 2015
Priority date	—
Expiry date	Oct 9, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01K7/343
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to an apparatus for the calibration of a thermometer in situ, wherein the apparatus has a temperature sensor (S) for determining a temperature (T); wherein a reference element (K) is provided for calibrating the temperature sensor (S); wherein the reference element (K) at least partially comprises a ferroelectric material (D), which experiences a phase transformation at least one predetermined temperature (TPh) in a temperature range relevant for calibrating the temperature sensor (S).

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