Linear Variable Differential Transformer in Harsh Environments - A Displacement and Thermal Study

Gabriel Julian Gruber; Markus Neumayer; Bernhard Schweighofer; Thomas Leitner; Matthias Berger; Gerald  Klösch; Hannes Wegleiter

doi:10.1109/I2MTC53148.2023.10176006

Linear Variable Differential Transformer in Harsh Environments - A Displacement and Thermal Study

Gabriel Julian Gruber, Markus Neumayer, Bernhard Schweighofer, Thomas Leitner, Matthias Berger, Gerald Klösch, Hannes Wegleiter

Institute of Electrical Measurement and Sensor Systems (4530)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

Linear variable differential transformers (LVDT) are high precision linear position sensors and capable of measuring position up to one meter. Especially in environments with high temperatures and temperature variations, the core material used, ferritic or non-ferritic, is critical. In this paper we present simulations and comparative measurements to interpret the dependency of LVDTs. We analyse the performance of the LVDT with respect to changes in the excitation signal, as well as uniform and non-uniform heating of the LVDT. The simulation model presented can be used to model the sensor behavior and reproduce the dependencies of the output voltages. The results show that the behavior of the sensor varies depending on the position of the core. This makes compensation measures difficult.

Original language	English
Title of host publication	I2MTC 2023 - 2023 IEEE International Instrumentation and Measurement Technology Conference
Subtitle of host publication	Rising Above Covid-19, Proceedings
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	6
ISBN (Electronic)	9781665453837
DOIs	https://doi.org/10.1109/I2MTC53148.2023.10176006
Publication status	Published - 2023
Event	2023 International Instrumentation and Measurement Technology Conference: IMTC 2023 - Kuala Lumpur, Malaysia Duration: 22 May 2023 → …

Conference

Conference	2023 International Instrumentation and Measurement Technology Conference
Abbreviated title	I2MTC 2023
Country/Territory	Malaysia
City	Kuala Lumpur
Period	22/05/23 → …

Keywords

lightweight
Miniaturized magnetic energy harvesting
overhead high voltage lines
remote locations
large displacements
linear variable differential transformer
ferritic core
High temperature

ASJC Scopus subject areas

Instrumentation
Electrical and Electronic Engineering

Access to Document

10.1109/I2MTC53148.2023.10176006

Cite this

Gruber, G. J., Neumayer, M., Schweighofer, B., Leitner, T., Berger, M., Klösch, G., & Wegleiter, H. (2023). Linear Variable Differential Transformer in Harsh Environments - A Displacement and Thermal Study. In I2MTC 2023 - 2023 IEEE International Instrumentation and Measurement Technology Conference: Rising Above Covid-19, Proceedings Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/I2MTC53148.2023.10176006

Linear Variable Differential Transformer in Harsh Environments - A Displacement and Thermal Study. / Gruber, Gabriel Julian ; Neumayer, Markus ; Schweighofer, Bernhard et al.
I2MTC 2023 - 2023 IEEE International Instrumentation and Measurement Technology Conference: Rising Above Covid-19, Proceedings. Institute of Electrical and Electronics Engineers, 2023.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Gruber, GJ , Neumayer, M , Schweighofer, B, Leitner, T, Berger, M, Klösch, G & Wegleiter, H 2023, Linear Variable Differential Transformer in Harsh Environments - A Displacement and Thermal Study. in I2MTC 2023 - 2023 IEEE International Instrumentation and Measurement Technology Conference: Rising Above Covid-19, Proceedings. Institute of Electrical and Electronics Engineers, 2023 International Instrumentation and Measurement Technology Conference, Kuala Lumpur, Malaysia, 22/05/23. https://doi.org/10.1109/I2MTC53148.2023.10176006

Gruber GJ , Neumayer M , Schweighofer B, Leitner T, Berger M, Klösch G et al. Linear Variable Differential Transformer in Harsh Environments - A Displacement and Thermal Study. In I2MTC 2023 - 2023 IEEE International Instrumentation and Measurement Technology Conference: Rising Above Covid-19, Proceedings. Institute of Electrical and Electronics Engineers. 2023 doi: 10.1109/I2MTC53148.2023.10176006

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title = "Linear Variable Differential Transformer in Harsh Environments - A Displacement and Thermal Study",

abstract = "Linear variable differential transformers (LVDT) are high precision linear position sensors and capable of measuring position up to one meter. Especially in environments with high temperatures and temperature variations, the core material used, ferritic or non-ferritic, is critical. In this paper we present simulations and comparative measurements to interpret the dependency of LVDTs. We analyse the performance of the LVDT with respect to changes in the excitation signal, as well as uniform and non-uniform heating of the LVDT. The simulation model presented can be used to model the sensor behavior and reproduce the dependencies of the output voltages. The results show that the behavior of the sensor varies depending on the position of the core. This makes compensation measures difficult.",

keywords = "lightweight, Miniaturized magnetic energy harvesting, overhead high voltage lines, remote locations, large displacements, linear variable differential transformer, ferritic core, High temperature",

author = "Gruber, {Gabriel Julian} and Markus Neumayer and Bernhard Schweighofer and Thomas Leitner and Matthias Berger and Gerald Kl{\"o}sch and Hannes Wegleiter",

year = "2023",

doi = "10.1109/I2MTC53148.2023.10176006",

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AU - Gruber, Gabriel Julian

AU - Neumayer, Markus

AU - Schweighofer, Bernhard

AU - Leitner, Thomas

AU - Berger, Matthias

AU - Klösch, Gerald

AU - Wegleiter, Hannes

PY - 2023

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N2 - Linear variable differential transformers (LVDT) are high precision linear position sensors and capable of measuring position up to one meter. Especially in environments with high temperatures and temperature variations, the core material used, ferritic or non-ferritic, is critical. In this paper we present simulations and comparative measurements to interpret the dependency of LVDTs. We analyse the performance of the LVDT with respect to changes in the excitation signal, as well as uniform and non-uniform heating of the LVDT. The simulation model presented can be used to model the sensor behavior and reproduce the dependencies of the output voltages. The results show that the behavior of the sensor varies depending on the position of the core. This makes compensation measures difficult.

AB - Linear variable differential transformers (LVDT) are high precision linear position sensors and capable of measuring position up to one meter. Especially in environments with high temperatures and temperature variations, the core material used, ferritic or non-ferritic, is critical. In this paper we present simulations and comparative measurements to interpret the dependency of LVDTs. We analyse the performance of the LVDT with respect to changes in the excitation signal, as well as uniform and non-uniform heating of the LVDT. The simulation model presented can be used to model the sensor behavior and reproduce the dependencies of the output voltages. The results show that the behavior of the sensor varies depending on the position of the core. This makes compensation measures difficult.

KW - lightweight

KW - Miniaturized magnetic energy harvesting

KW - overhead high voltage lines

KW - remote locations

KW - large displacements

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KW - ferritic core

KW - High temperature

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Linear Variable Differential Transformer in Harsh Environments - A Displacement and Thermal Study

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