Effects of Vertical and Lateral Displacements of a Maglev Train on the Received Voltage of an Absolute Position Detection System

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Key Points

The aim is to assess how vertical and lateral displacements of a maglev train influence the voltage received by an absolute position detection system.
Analyzed the effect of displacement using electromagnetic simulation techniques.
Evaluated the relationship between slot width of the marker plate and layout to received voltage characteristics.
Proposed a method using different frequencies on adjacent transmitter coils to reduce code misrecognition.
Found that increasing the gap between the marker plate and the loop antenna to 50 mm improves code distinction under vertical displacements of ±200 mm.
Identified that proximity of the marker plate to the transmitter antenna leads to code misrecognition during lateral displacements.

Research analyzes how vertical and lateral displacements affect voltage in a detection system, suggesting improvements for accuracy.

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Seong et al. (2026) studied this question.

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