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An '''electromagnetic tracking system''' is a system that tracks an object in a space using [[electromagnet]]s.
+An '''electromagnetic tracking system''' is a system that tracks an object in a space using [[electromagnet]]s. It can be used to track the position and orientation of a [[head-mounted display]].
It can be used together with a near-eye display system or a world-fixed display. Examples of electromagnetic tracking systems are the [[Polhemus Viper]] and the [[Razer Hydra]].
It can be used together with a near-eye display system or a world-fixed display. Examples of electromagnetic tracking systems are the [[Polhemus Viper]] and the [[Razer Hydra]].