Core temperature measurement using inductively coupled noise thermometry at 522MHz

Colm McCaffrey; Heikki Seppä; Pekka Pursula

doi:10.1109/ICSENS.2016.7808436

Core temperature measurement using inductively coupled noise thermometry at 522MHz

Colm McCaffrey, Heikki Seppä, Pekka Pursula

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

Every material which dissipates electrical energy generates thermal noise power that is related to the temperature of that material. This work exploits this effect to measure the average absolute temperature within a vessel. We present a technique for the measurement of core temperature based on inductive noise telemetry; where a loop antenna is magnetically coupled to a saline solution. Dissipations in the antenna are dominated by the solution and therefore the noise measured in the antenna is dominated by the noise in the solution. This work demonstrates a noise measurement of 0.67 pV/°C/VHz, approaching the theoretical calculated noise in the solution. The noise thermometry system is demonstrated, in ideal conditions and a temperature measurement resolution of 0.2°C is achieved.

Original language	English
Title of host publication	SENSORS, 2016 IEEE
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	1-3
ISBN (Electronic)	978-1-4799-8287-5
ISBN (Print)	978-1-4799-8288-2
DOIs	https://doi.org/10.1109/ICSENS.2016.7808436
Publication status	Published - 9 Jan 2016
MoE publication type	Not Eligible
Event	IEEE SENSORS 2016 - Caribe Royale All-Suite Hotel and Convention Center, Orlando, United States Duration: 30 Oct 2016 → 2 Nov 2016

Conference

Conference	IEEE SENSORS 2016
Country/Territory	United States
City	Orlando
Period	30/10/16 → 2/11/16

Keywords

Nyguist fluctuation-dissipation theorem
noise thermometry
thermal noise
inductively coupled
core temperature
UHF
OtaNano

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10.1109/ICSENS.2016.7808436

OtaNano
VTT Technical Research Centre of Finland
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Cite this

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title = "Core temperature measurement using inductively coupled noise thermometry at 522MHz",

abstract = "Every material which dissipates electrical energy generates thermal noise power that is related to the temperature of that material. This work exploits this effect to measure the average absolute temperature within a vessel. We present a technique for the measurement of core temperature based on inductive noise telemetry; where a loop antenna is magnetically coupled to a saline solution. Dissipations in the antenna are dominated by the solution and therefore the noise measured in the antenna is dominated by the noise in the solution. This work demonstrates a noise measurement of 0.67 pV/°C/VHz, approaching the theoretical calculated noise in the solution. The noise thermometry system is demonstrated, in ideal conditions and a temperature measurement resolution of 0.2°C is achieved.",

keywords = "Nyguist fluctuation-dissipation theorem, noise thermometry, thermal noise, inductively coupled, core temperature, UHF, OtaNano",

author = "Colm McCaffrey and Heikki Sepp{\"a} and Pekka Pursula",

year = "2016",

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doi = "10.1109/ICSENS.2016.7808436",

language = "English",

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address = "United States",

note = "IEEE SENSORS 2016 ; Conference date: 30-10-2016 Through 02-11-2016",

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T1 - Core temperature measurement using inductively coupled noise thermometry at 522MHz

AU - McCaffrey, Colm

AU - Seppä, Heikki

AU - Pursula, Pekka

PY - 2016/1/9

Y1 - 2016/1/9

N2 - Every material which dissipates electrical energy generates thermal noise power that is related to the temperature of that material. This work exploits this effect to measure the average absolute temperature within a vessel. We present a technique for the measurement of core temperature based on inductive noise telemetry; where a loop antenna is magnetically coupled to a saline solution. Dissipations in the antenna are dominated by the solution and therefore the noise measured in the antenna is dominated by the noise in the solution. This work demonstrates a noise measurement of 0.67 pV/°C/VHz, approaching the theoretical calculated noise in the solution. The noise thermometry system is demonstrated, in ideal conditions and a temperature measurement resolution of 0.2°C is achieved.

AB - Every material which dissipates electrical energy generates thermal noise power that is related to the temperature of that material. This work exploits this effect to measure the average absolute temperature within a vessel. We present a technique for the measurement of core temperature based on inductive noise telemetry; where a loop antenna is magnetically coupled to a saline solution. Dissipations in the antenna are dominated by the solution and therefore the noise measured in the antenna is dominated by the noise in the solution. This work demonstrates a noise measurement of 0.67 pV/°C/VHz, approaching the theoretical calculated noise in the solution. The noise thermometry system is demonstrated, in ideal conditions and a temperature measurement resolution of 0.2°C is achieved.

KW - Nyguist fluctuation-dissipation theorem

KW - noise thermometry

KW - thermal noise

KW - inductively coupled

KW - core temperature

KW - UHF

KW - OtaNano

U2 - 10.1109/ICSENS.2016.7808436

DO - 10.1109/ICSENS.2016.7808436

M3 - Conference article in proceedings

SN - 978-1-4799-8288-2

SP - 1

EP - 3

BT - SENSORS, 2016 IEEE

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - IEEE SENSORS 2016

Y2 - 30 October 2016 through 2 November 2016

ER -

Core temperature measurement using inductively coupled noise thermometry at 522MHz

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