Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor

This study aimed to monitor the operating state of an induction motor, a type of electromagnetic motor, using a highly sensitive magnetic sensor, which could be applied for anomaly detection in the future. Monitoring the health of electromagnetic motors is very important to minimize losses due to fa...

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Main Authors: Akane Kobayashi, Kenji Nakamura, Takahito Ono
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/25/14/4471
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author Akane Kobayashi
Kenji Nakamura
Takahito Ono
author_facet Akane Kobayashi
Kenji Nakamura
Takahito Ono
author_sort Akane Kobayashi
collection DOAJ
description This study aimed to monitor the operating state of an induction motor, a type of electromagnetic motor, using a highly sensitive magnetic sensor, which could be applied for anomaly detection in the future. Monitoring the health of electromagnetic motors is very important to minimize losses due to failures. Detecting anomalies using the changes compared with the initial state is a possible solution, but there are issues such as a lack of training data for machine learning and the need to install multiple sensors. Therefore, an attempt was made to acquire the various operating states of a motor from magnetic signals using a single magnetic sensor capable of non-contact measurement. The relationships between the magnetic flux density from the motor and the other motor conditions were investigated. As a result, the magnetic spectrum was found to contain information on the rotor rotation frequency, torque, and output power. Therefore, the magnetic sensor can be applied to monitor a motor’s operating conditions, making it a useful tool for advanced data analysis.
format Article
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institution Kabale University
issn 1424-8220
language English
publishDate 2025-07-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj-art-0807191b9fd149ccb28cc61879200a752025-08-20T03:32:18ZengMDPI AGSensors1424-82202025-07-012514447110.3390/s25144471Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic SensorAkane Kobayashi0Kenji Nakamura1Takahito Ono2Department of Mechanical Systems Engineering, Tohoku University, Sendai 980-8579, JapanDepartment of Management Science and Technology, Tohoku University, Sendai 980-8579, JapanDepartment of Mechanical Systems Engineering, Tohoku University, Sendai 980-8579, JapanThis study aimed to monitor the operating state of an induction motor, a type of electromagnetic motor, using a highly sensitive magnetic sensor, which could be applied for anomaly detection in the future. Monitoring the health of electromagnetic motors is very important to minimize losses due to failures. Detecting anomalies using the changes compared with the initial state is a possible solution, but there are issues such as a lack of training data for machine learning and the need to install multiple sensors. Therefore, an attempt was made to acquire the various operating states of a motor from magnetic signals using a single magnetic sensor capable of non-contact measurement. The relationships between the magnetic flux density from the motor and the other motor conditions were investigated. As a result, the magnetic spectrum was found to contain information on the rotor rotation frequency, torque, and output power. Therefore, the magnetic sensor can be applied to monitor a motor’s operating conditions, making it a useful tool for advanced data analysis.https://www.mdpi.com/1424-8220/25/14/4471induction motorsmagnetic sensornon-contact monitoringtorquepower
spellingShingle Akane Kobayashi
Kenji Nakamura
Takahito Ono
Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor
Sensors
induction motors
magnetic sensor
non-contact monitoring
torque
power
title Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor
title_full Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor
title_fullStr Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor
title_full_unstemmed Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor
title_short Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor
title_sort measuring the operating condition of induction motor using high sensitivity magnetic sensor
topic induction motors
magnetic sensor
non-contact monitoring
torque
power
url https://www.mdpi.com/1424-8220/25/14/4471
work_keys_str_mv AT akanekobayashi measuringtheoperatingconditionofinductionmotorusinghighsensitivitymagneticsensor
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AT takahitoono measuringtheoperatingconditionofinductionmotorusinghighsensitivitymagneticsensor