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Multi-axis Response of a Thermal Convection-based Accelerometer

A thermal convection-based accelerometer was fabricated, and its characteristics were analyzed in this study. To understand the thermal convection of the accelerometer, the Grashof and Prandtl number equations were analyzed. This study conducted experiments to improve not only the sensitivity, but a...

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Autores principales: Kim, Jae Keon, Han, Maeum, Kang, Shin-Won, Kong, Seong Ho, Jung, Daewoong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6082275/
https://www.ncbi.nlm.nih.gov/pubmed/30424262
http://dx.doi.org/10.3390/mi9070329
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author Kim, Jae Keon
Han, Maeum
Kang, Shin-Won
Kong, Seong Ho
Jung, Daewoong
author_facet Kim, Jae Keon
Han, Maeum
Kang, Shin-Won
Kong, Seong Ho
Jung, Daewoong
author_sort Kim, Jae Keon
collection PubMed
description A thermal convection-based accelerometer was fabricated, and its characteristics were analyzed in this study. To understand the thermal convection of the accelerometer, the Grashof and Prandtl number equations were analyzed. This study conducted experiments to improve not only the sensitivity, but also the frequency band. An accelerometer with a more voluminous cavity showed better sensitivity. In addition, when the accelerometer used a gas medium with a large density and small viscosity, its sensitivity also improved. On the other hand, the accelerometer with a narrow volume cavity that used a gas medium with a small density and large thermal diffusivity displayed a larger frequency band. In particular, this paper focused on a Z-axis response to extend the performance of the accelerometer.
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spelling pubmed-60822752018-11-01 Multi-axis Response of a Thermal Convection-based Accelerometer Kim, Jae Keon Han, Maeum Kang, Shin-Won Kong, Seong Ho Jung, Daewoong Micromachines (Basel) Article A thermal convection-based accelerometer was fabricated, and its characteristics were analyzed in this study. To understand the thermal convection of the accelerometer, the Grashof and Prandtl number equations were analyzed. This study conducted experiments to improve not only the sensitivity, but also the frequency band. An accelerometer with a more voluminous cavity showed better sensitivity. In addition, when the accelerometer used a gas medium with a large density and small viscosity, its sensitivity also improved. On the other hand, the accelerometer with a narrow volume cavity that used a gas medium with a small density and large thermal diffusivity displayed a larger frequency band. In particular, this paper focused on a Z-axis response to extend the performance of the accelerometer. MDPI 2018-06-29 /pmc/articles/PMC6082275/ /pubmed/30424262 http://dx.doi.org/10.3390/mi9070329 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kim, Jae Keon
Han, Maeum
Kang, Shin-Won
Kong, Seong Ho
Jung, Daewoong
Multi-axis Response of a Thermal Convection-based Accelerometer
title Multi-axis Response of a Thermal Convection-based Accelerometer
title_full Multi-axis Response of a Thermal Convection-based Accelerometer
title_fullStr Multi-axis Response of a Thermal Convection-based Accelerometer
title_full_unstemmed Multi-axis Response of a Thermal Convection-based Accelerometer
title_short Multi-axis Response of a Thermal Convection-based Accelerometer
title_sort multi-axis response of a thermal convection-based accelerometer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6082275/
https://www.ncbi.nlm.nih.gov/pubmed/30424262
http://dx.doi.org/10.3390/mi9070329
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