The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2015
Filed:
Aug. 25, 2011
Marc Schalles, Erfurt, DE;
Dirk Boguhn, Munich, DE;
Peter Seefeld, Pfronten, DE;
Reinhard Buchner, Nesselwang, DE;
Marc Schalles, Erfurt, DE;
Dirk Boguhn, Munich, DE;
Peter Seefeld, Pfronten, DE;
Reinhard Buchner, Nesselwang, DE;
ENDRESS + HAUSER WETZER GMBH + CO. KG, Nesselwang, DE;
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 (T) in a temperature range relevant for calibrating the temperature sensor (S).