TEMPERATURE MEASURING MODULE HAVING POSITION COMPENSATION

Title:

TEMPERATURE MEASURING MODULE HAVING POSITION COMPENSATION

Document Type and Number:

WIPO Patent Application WO/2013/124062

Kind Code:

A3

Abstract:

The invention relates to a temperature measuring module (TCM) having position compensation, wherein the temperature measuring module (TCM) is provided to be connected to a thermocouple (TA) or a plurality of thermocouples (TA, TB, TC,... TN ). A thermocouple has two metallic conductors (L1, L2), wherein the two metallic conductors have a different chemical composition, at least to some extent, wherein the two metallic conductors (L1, L2) are connected in an electrically conductive and a point-like manner at the measurement point (10), wherein an electric thermocouple voltage (Uthermo) is formed between the two conductors (L1, L2) at the reference point (R) as a function of the temperature difference (ΔT) between the first temperature (T1) and the second temperature (T2). The temperature measuring module (TCM) also has a temperature-dependent resistor (PT) via which the temperature (T1) of the reference point (R) can be registered as a resistance voltage (Uabs). The temperature measuring module (TCM) also has an evaluation circuit (A) which permits a first temperature value (Tmess1) of the measurement point (M) to be determined by means of the electric resistance voltage (Uabs) and the thermocouple voltage (Uthermo). The temperature measuring module (TCM) also has a compensation means (K), which changes the first temperature value (Tmess1)as a function of the installation position of the temperature measuring module (TCM), such that it is at least partly possible to compensate for thermal influences of the evaluation circuit (A) that act thermally on the reference point (R) and/or the measurement point (M) as a function of position.

Inventors:

LOHRE HUBERTUS (DE)
JOESTINGMEIER NORBERT (DE)

Application Number:

PCT/EP2013/000501

Publication Date:

March 27, 2014

Filing Date:

February 21, 2013

Export Citation:

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Assignee:

PHOENIX CONTACT GMBH & CO (DE)

International Classes:

G01K1/20; G01K7/13

Foreign References:

US20080165827A1	2008-07-10
EP0285120A2	1988-10-05
DE1940009A1	1971-02-18

Attorney, Agent or Firm:

PHOENIX CONTACT GMBH & CO. KG (Blomberg, DE)

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