Prüfverfahren für Nichtinvasive Temperaturmessinstrumente

Details

Veröffentlichungs-Nr.

EP3742139

Aktenzeichen

EP19175757

Anmeldetag

21. Mai 2019

Veröffentlichung

2. Juli 2025

Erteilung

2. Juli 2025

Rechtsraum

EP

IPC

G01K1/143

Abstract

A method for testing a temperature measuring instrument (1), wherein said instrument (1) comprises at least one sensor (2a-2c) that changes its electrical resistance R, and/or an electrical voltage U that it produces, in response to being exposed to a change in temperature T, and wherein the instrument (1) is configured to be coupled to an object of interest (3), the method comprising:• changing (110) the temperature T of at least one sensor (2a-2c) by an amount that is detectable given the measurement resolution dT of the at least one sensor (2a-2c), by driving an electrical manipulation current I_M through this sensor (2a-2c);• obtaining (120) one or measurement values (4) from at least one sensor (2a-2c); and• evaluating (130) a state (5a) of the measuring instrument (1), a state (5b) of one or more of its sensors (2a-2c), and/or a state (5c) of a coupling to an object of interest (3), from the one or more measurement values (4).

Anmelder

Firma

ABB Schweiz AG

Land

🇨🇭 Schweiz

Fachgebiete