Inductive and magnetic sensors
Abstract
Inductive and magnetic sensors employ variables and parameters like magnetic induction, magnetic flux, self-inductance, mutual inductance, or magnetic resistance. By a particular construction of the device, these quantities are made dependent on an applied displacement or force. First we review various magnetic quantities and their relations. Next the operation and the specifications of the major types of magnetic and inductive sensors are analyzed, including Hall sensors, fluxgate sensors, eddy current sensors, and magnetostrictive sensors. Special attention is given to transformer-type sensors (e.g., linear variable differential transformer and resolvers). How inductive and magnetic sensors can be interfaced ...
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