Rotation speed is a key metric for many applications, such as calibrating electric motors in a factory, monitoring a car's engine health, detecting faults in electrical appliances, and more. However, existing measurement techniques have several drawbacks, including the need for line-of-sight visibility, intrusive machine modification, fixed sensor deployment, or short sensing ranges. In this paper, we introduce MagTach, a handheld hardware-software system for rotation speed measurement that leverages electromagnetic field sensing to provide highly accurate and convenient readings.
Cite
@article{arxiv.2503.10885,
title = {Motor Rotation Speed Estimation based on Magnetic Inductive Sensing},
author = {Rahul Hoskeri and Hua Huang},
journal= {arXiv preprint arXiv:2503.10885},
year = {2025}
}