Temperature measuring device and method for determining temperature

US11415466B2 · kind B2 · utility

Assignee

• ABB Schweiz AG · CH

Inventors

• Peter Ude · Hanau, DE
• Wilhelm Daake · Petershagen, DE
• Juergen Horstkotte · Enger, DE
• Guruprasad Sosale · Munich, DE
• Joerg Gebhardt · Mainz, DE
• Paul Szasz · Heidelberg, DE
• Andreas Decker · Besigheim, DE

Key dates

• Filing date: Mar 25, 2020
• Grant date: Aug 16, 2022
• Expiry date: Mar 31, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01K7/427
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A temperature measuring device for determining a medium temperature by a temperature of a measuring point on a surface enclosing the medium includes: at least one measuring sensor; at least one reference sensor; and a measured value processing device which is connected via a cable to the at least one measuring sensor and via a cable to the at least one reference sensor. The at least one measuring sensor and the at least one reference sensor are arranged along a main thermal connection path between the surface enclosing the medium and surroundings. The at least one measuring sensor is arranged close to the measuring point. A thermal resistance between a relevant measuring sensor and the at least one reference sensor is smaller than a thermal resistance between a relevant reference sensor and the surroundings.