Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations
A composite current sensor is designed with soft ferrite as the magnetizer in combination with giant magnetostrictive material (GMM) and fiber Bragg grating (FBG). The temperature drift characteristics of the GMM, detecting performances under thermal strain caused by temperature variation in the GMM...
Saved in:
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2024
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/173133 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-173133 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-1731332024-01-19T15:41:45Z Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations Li, Ying Sun, Weifeng Zhang, Weichao School of Electrical and Electronic Engineering SP Group–NTU Joint Laboratory Engineering::Electrical and electronic engineering Magnetostrictive Material Fiber Current Sensor A composite current sensor is designed with soft ferrite as the magnetizer in combination with giant magnetostrictive material (GMM) and fiber Bragg grating (FBG). The temperature drift characteristics of the GMM, detecting performances under thermal strain caused by temperature variation in the GMM rod, are investigated by simulating the coupled fields of magnetostriction and thermal expansion with the finite-element multi-physics method to explore the temperature-drift mechanism of the ferrite–GMM current detector. The sensing characteristics of the GMM-FBG current sensor under quasi-static current excitation at various work temperatures are evaluated by simulating thermal stress between the GMM and FBG to analyze the temperature drift mechanism of the Bragg wavelength signal modulated by FBG. Even though temperature elevation suppresses GMM magnetization and thereby reduces the slopes of stress–strain curves, the steering magnetization of magnetic domains in the GMM rod tends to saturation without appreciable thermal inhibition in the high-stress region of large current excitation, while the magnetostrictive strain is still abated by the reduction in magnetic flux density caused by the thermal expansion of GMM rods. The temperature elevation can also produce thermal stress between the GMM and FBG, which will decrease the detection sensitivity and testing range of the GMM-FBG current sensor. The temperature drift characteristics of the GMM-FBG are generalized into a formula by fitting the wavelength shifting as a function of thermal strain, which will significantly facilitate designing the scale calibration for various ambient temperatures. The present researchers provide a theoretical basis and experimental guidance for developing GMM-FBG current sensors with high sensitivity and stability. Energy Market Authority (EMA) Nanyang Technological University National Research Foundation (NRF) Published version This research was funded by the Science and Technology Project of Shenzhen Power Supply Bureau Co., Ltd. (Grant No. 09000020220301030900517) and the National Research Foundation, SP Group, Energy Market Authority of Singapore and Nanyang Technological University under Energy Programme (Grant No. EMA-EP010-SNJL-002). Grand No. KFKT202210 from Key Laboratory of Special Machine and High Voltage Apparatus (Shenyang University of Technology), Ministry of Education. 2024-01-15T02:57:23Z 2024-01-15T02:57:23Z 2023 Journal Article Li, Y., Sun, W. & Zhang, W. (2023). Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations. Applied Sciences, 13(19), 10955-. https://dx.doi.org/10.3390/app131910955 2076-3417 https://hdl.handle.net/10356/173133 10.3390/app131910955 2-s2.0-85174175417 19 13 10955 en EMA-EP010-SNJL-002 Applied Sciences © 2023 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 (https:// creativecommons.org/licenses/by/ 4.0/). application/pdf |
institution |
Nanyang Technological University |
building |
NTU Library |
continent |
Asia |
country |
Singapore Singapore |
content_provider |
NTU Library |
collection |
DR-NTU |
language |
English |
topic |
Engineering::Electrical and electronic engineering Magnetostrictive Material Fiber Current Sensor |
spellingShingle |
Engineering::Electrical and electronic engineering Magnetostrictive Material Fiber Current Sensor Li, Ying Sun, Weifeng Zhang, Weichao Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations |
description |
A composite current sensor is designed with soft ferrite as the magnetizer in combination with giant magnetostrictive material (GMM) and fiber Bragg grating (FBG). The temperature drift characteristics of the GMM, detecting performances under thermal strain caused by temperature variation in the GMM rod, are investigated by simulating the coupled fields of magnetostriction and thermal expansion with the finite-element multi-physics method to explore the temperature-drift mechanism of the ferrite–GMM current detector. The sensing characteristics of the GMM-FBG current sensor under quasi-static current excitation at various work temperatures are evaluated by simulating thermal stress between the GMM and FBG to analyze the temperature drift mechanism of the Bragg wavelength signal modulated by FBG. Even though temperature elevation suppresses GMM magnetization and thereby reduces the slopes of stress–strain curves, the steering magnetization of magnetic domains in the GMM rod tends to saturation without appreciable thermal inhibition in the high-stress region of large current excitation, while the magnetostrictive strain is still abated by the reduction in magnetic flux density caused by the thermal expansion of GMM rods. The temperature elevation can also produce thermal stress between the GMM and FBG, which will decrease the detection sensitivity and testing range of the GMM-FBG current sensor. The temperature drift characteristics of the GMM-FBG are generalized into a formula by fitting the wavelength shifting as a function of thermal strain, which will significantly facilitate designing the scale calibration for various ambient temperatures. The present researchers provide a theoretical basis and experimental guidance for developing GMM-FBG current sensors with high sensitivity and stability. |
author2 |
School of Electrical and Electronic Engineering |
author_facet |
School of Electrical and Electronic Engineering Li, Ying Sun, Weifeng Zhang, Weichao |
format |
Article |
author |
Li, Ying Sun, Weifeng Zhang, Weichao |
author_sort |
Li, Ying |
title |
Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations |
title_short |
Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations |
title_full |
Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations |
title_fullStr |
Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations |
title_full_unstemmed |
Temperature drift characteristics analysis of GMM-FBG current sensor based on finite-element multi-physics simulations |
title_sort |
temperature drift characteristics analysis of gmm-fbg current sensor based on finite-element multi-physics simulations |
publishDate |
2024 |
url |
https://hdl.handle.net/10356/173133 |
_version_ |
1789483184227876864 |