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Design of Diaphragm and Coil for Stable Performance of an Eddy Current Type Pressure Sensor

The aim of this work was to develop an eddy current type pressure sensor and investigate its fundamental characteristics affected by the mechanical and electrical design parameters of sensor. The sensor has two key components, i.e., diaphragm and coil. On the condition that the outer diameter of sen...

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Detalles Bibliográficos
Autores principales: Lee, Hyo Ryeol, Lee, Gil Seung, Kim, Hwa Young, Ahn, Jung Hwan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4970075/
https://www.ncbi.nlm.nih.gov/pubmed/27376306
http://dx.doi.org/10.3390/s16071025
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author Lee, Hyo Ryeol
Lee, Gil Seung
Kim, Hwa Young
Ahn, Jung Hwan
author_facet Lee, Hyo Ryeol
Lee, Gil Seung
Kim, Hwa Young
Ahn, Jung Hwan
author_sort Lee, Hyo Ryeol
collection PubMed
description The aim of this work was to develop an eddy current type pressure sensor and investigate its fundamental characteristics affected by the mechanical and electrical design parameters of sensor. The sensor has two key components, i.e., diaphragm and coil. On the condition that the outer diameter of sensor is 10 mm, two key parts should be designed so as to keep a good linearity and sensitivity. Experiments showed that aluminum is the best target material for eddy current detection. A round-grooved diaphragm is suggested in order to measure more precisely its deflection caused by applied pressures. The design parameters of a round-grooved diaphragm can be selected depending on the measuring requirements. A developed pressure sensor with diaphragm of t = 0.2 mm and w = 1.05 mm was verified to measure pressure up to 10 MPa with very good linearity and errors of less than 0.16%.
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spelling pubmed-49700752016-08-04 Design of Diaphragm and Coil for Stable Performance of an Eddy Current Type Pressure Sensor Lee, Hyo Ryeol Lee, Gil Seung Kim, Hwa Young Ahn, Jung Hwan Sensors (Basel) Article The aim of this work was to develop an eddy current type pressure sensor and investigate its fundamental characteristics affected by the mechanical and electrical design parameters of sensor. The sensor has two key components, i.e., diaphragm and coil. On the condition that the outer diameter of sensor is 10 mm, two key parts should be designed so as to keep a good linearity and sensitivity. Experiments showed that aluminum is the best target material for eddy current detection. A round-grooved diaphragm is suggested in order to measure more precisely its deflection caused by applied pressures. The design parameters of a round-grooved diaphragm can be selected depending on the measuring requirements. A developed pressure sensor with diaphragm of t = 0.2 mm and w = 1.05 mm was verified to measure pressure up to 10 MPa with very good linearity and errors of less than 0.16%. MDPI 2016-07-01 /pmc/articles/PMC4970075/ /pubmed/27376306 http://dx.doi.org/10.3390/s16071025 Text en © 2016 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
Lee, Hyo Ryeol
Lee, Gil Seung
Kim, Hwa Young
Ahn, Jung Hwan
Design of Diaphragm and Coil for Stable Performance of an Eddy Current Type Pressure Sensor
title Design of Diaphragm and Coil for Stable Performance of an Eddy Current Type Pressure Sensor
title_full Design of Diaphragm and Coil for Stable Performance of an Eddy Current Type Pressure Sensor
title_fullStr Design of Diaphragm and Coil for Stable Performance of an Eddy Current Type Pressure Sensor
title_full_unstemmed Design of Diaphragm and Coil for Stable Performance of an Eddy Current Type Pressure Sensor
title_short Design of Diaphragm and Coil for Stable Performance of an Eddy Current Type Pressure Sensor
title_sort design of diaphragm and coil for stable performance of an eddy current type pressure sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4970075/
https://www.ncbi.nlm.nih.gov/pubmed/27376306
http://dx.doi.org/10.3390/s16071025
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