Inductive noise thermometer: Practical realization

Timo Varpula, Heikki Seppä

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Abstract

A new concept, called inductive noise thermometer, for measuring temperature of electrically conductive materials without any physical contact was realized in practice. In the method a low‐loss coil is placed close to the electrically conductive material. The increase in the noise voltage of the coil is related to the temperature of the material. Results from laboratory experiments on steel up to temperatures of 1300 K showed an agreement with conventional thermocouple recordings within an uncertainty of 1%. The thermometer built was also tested on a continuous casting machine of a steel mill. The preliminary experimental results were encouraging although at times external rf disturbances disrupted the measurement.
Original languageEnglish
Pages (from-to)1593 - 1600
Number of pages8
JournalReview of Scientific Instruments
Volume64
Issue number6
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

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Thermometers
thermometers
Conductive materials
coils
steels
Iron and steel plants
Continuous casting
thermocouples
Thermocouples
Temperature
temperature
disturbances
recording
Steel
Electric potential
electric potential
Experiments

Cite this

@article{5672acb7106a4d7daf53f78017365b90,
title = "Inductive noise thermometer: Practical realization",
abstract = "A new concept, called inductive noise thermometer, for measuring temperature of electrically conductive materials without any physical contact was realized in practice. In the method a low‐loss coil is placed close to the electrically conductive material. The increase in the noise voltage of the coil is related to the temperature of the material. Results from laboratory experiments on steel up to temperatures of 1300 K showed an agreement with conventional thermocouple recordings within an uncertainty of 1{\%}. The thermometer built was also tested on a continuous casting machine of a steel mill. The preliminary experimental results were encouraging although at times external rf disturbances disrupted the measurement.",
author = "Timo Varpula and Heikki Sepp{\"a}",
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language = "English",
volume = "64",
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journal = "Review of Scientific Instruments",
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}

Inductive noise thermometer : Practical realization. / Varpula, Timo; Seppä, Heikki.

In: Review of Scientific Instruments, Vol. 64, No. 6, 1993, p. 1593 - 1600.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Inductive noise thermometer

T2 - Practical realization

AU - Varpula, Timo

AU - Seppä, Heikki

N1 - Project code: SÄH 1204

PY - 1993

Y1 - 1993

N2 - A new concept, called inductive noise thermometer, for measuring temperature of electrically conductive materials without any physical contact was realized in practice. In the method a low‐loss coil is placed close to the electrically conductive material. The increase in the noise voltage of the coil is related to the temperature of the material. Results from laboratory experiments on steel up to temperatures of 1300 K showed an agreement with conventional thermocouple recordings within an uncertainty of 1%. The thermometer built was also tested on a continuous casting machine of a steel mill. The preliminary experimental results were encouraging although at times external rf disturbances disrupted the measurement.

AB - A new concept, called inductive noise thermometer, for measuring temperature of electrically conductive materials without any physical contact was realized in practice. In the method a low‐loss coil is placed close to the electrically conductive material. The increase in the noise voltage of the coil is related to the temperature of the material. Results from laboratory experiments on steel up to temperatures of 1300 K showed an agreement with conventional thermocouple recordings within an uncertainty of 1%. The thermometer built was also tested on a continuous casting machine of a steel mill. The preliminary experimental results were encouraging although at times external rf disturbances disrupted the measurement.

U2 - 10.1063/1.1144031

DO - 10.1063/1.1144031

M3 - Article

VL - 64

SP - 1593

EP - 1600

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 6

ER -