Thermal Balance Analysis of a Micro-Thermoelectric Gas Sensor Using Catalytic Combustion of Hydrogen

A thermoelectric gas sensor (TGS) with a combustion catalyst is a calorimetric sensor that changes the small heat of catalytic combustion into a signal voltage. We analyzed the thermal balance of a TGS to quantitatively estimate the sensor parameters. The voltage signal of a TGS was simulated, and t...

Full description

Bibliographic Details
Main Authors: Daisuke Nagai, Takafumi Akamatsu, Toshio Itoh, Noriya Izu, Woosuck Shin
Format: Article
Language:English
Published: MDPI AG 2014-01-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/14/1/1822
_version_ 1811308314790723584
author Daisuke Nagai
Takafumi Akamatsu
Toshio Itoh
Noriya Izu
Woosuck Shin
author_facet Daisuke Nagai
Takafumi Akamatsu
Toshio Itoh
Noriya Izu
Woosuck Shin
author_sort Daisuke Nagai
collection DOAJ
description A thermoelectric gas sensor (TGS) with a combustion catalyst is a calorimetric sensor that changes the small heat of catalytic combustion into a signal voltage. We analyzed the thermal balance of a TGS to quantitatively estimate the sensor parameters. The voltage signal of a TGS was simulated, and the heat balance was calculated at two sections across the thermoelectric film of a TGS. The thermal resistances in the two sections were estimated from the thermal time constants of the experimental signal curves of the TGS. The catalytic combustion heat Qcatalyst required for 1 mV of ∆Vgas was calculated to be 46.1 μW. Using these parameters, we find from simulations for the device performance that the expected Qcatalyst for 200 and 1,000 ppm H2 was 3.69 μW and 11.7 μW, respectively.
first_indexed 2024-04-13T09:19:58Z
format Article
id doaj.art-88b8c96e29e340e1bc858458c272225a
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-04-13T09:19:58Z
publishDate 2014-01-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-88b8c96e29e340e1bc858458c272225a2022-12-22T02:52:37ZengMDPI AGSensors1424-82202014-01-011411822183410.3390/s140101822s140101822Thermal Balance Analysis of a Micro-Thermoelectric Gas Sensor Using Catalytic Combustion of HydrogenDaisuke Nagai0Takafumi Akamatsu1Toshio Itoh2Noriya Izu3Woosuck Shin4AIST, 2266-98 Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, JapanAIST, 2266-98 Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, JapanAIST, 2266-98 Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, JapanAIST, 2266-98 Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, JapanAIST, 2266-98 Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, JapanA thermoelectric gas sensor (TGS) with a combustion catalyst is a calorimetric sensor that changes the small heat of catalytic combustion into a signal voltage. We analyzed the thermal balance of a TGS to quantitatively estimate the sensor parameters. The voltage signal of a TGS was simulated, and the heat balance was calculated at two sections across the thermoelectric film of a TGS. The thermal resistances in the two sections were estimated from the thermal time constants of the experimental signal curves of the TGS. The catalytic combustion heat Qcatalyst required for 1 mV of ∆Vgas was calculated to be 46.1 μW. Using these parameters, we find from simulations for the device performance that the expected Qcatalyst for 200 and 1,000 ppm H2 was 3.69 μW and 11.7 μW, respectively.http://www.mdpi.com/1424-8220/14/1/1822thermoelectric gas sensorcombustion catalystthermal balance
spellingShingle Daisuke Nagai
Takafumi Akamatsu
Toshio Itoh
Noriya Izu
Woosuck Shin
Thermal Balance Analysis of a Micro-Thermoelectric Gas Sensor Using Catalytic Combustion of Hydrogen
Sensors
thermoelectric gas sensor
combustion catalyst
thermal balance
title Thermal Balance Analysis of a Micro-Thermoelectric Gas Sensor Using Catalytic Combustion of Hydrogen
title_full Thermal Balance Analysis of a Micro-Thermoelectric Gas Sensor Using Catalytic Combustion of Hydrogen
title_fullStr Thermal Balance Analysis of a Micro-Thermoelectric Gas Sensor Using Catalytic Combustion of Hydrogen
title_full_unstemmed Thermal Balance Analysis of a Micro-Thermoelectric Gas Sensor Using Catalytic Combustion of Hydrogen
title_short Thermal Balance Analysis of a Micro-Thermoelectric Gas Sensor Using Catalytic Combustion of Hydrogen
title_sort thermal balance analysis of a micro thermoelectric gas sensor using catalytic combustion of hydrogen
topic thermoelectric gas sensor
combustion catalyst
thermal balance
url http://www.mdpi.com/1424-8220/14/1/1822
work_keys_str_mv AT daisukenagai thermalbalanceanalysisofamicrothermoelectricgassensorusingcatalyticcombustionofhydrogen
AT takafumiakamatsu thermalbalanceanalysisofamicrothermoelectricgassensorusingcatalyticcombustionofhydrogen
AT toshioitoh thermalbalanceanalysisofamicrothermoelectricgassensorusingcatalyticcombustionofhydrogen
AT noriyaizu thermalbalanceanalysisofamicrothermoelectricgassensorusingcatalyticcombustionofhydrogen
AT woosuckshin thermalbalanceanalysisofamicrothermoelectricgassensorusingcatalyticcombustionofhydrogen