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One company that makes electromagnetic tracking devices is [[Polhemus]].

One company that makes electromagnetic tracking devices is [[Polhemus]].

The [[Magic Leap 1]] used a poor form of EM tracking for its handheld controller.

The [[Magic Leap 1]] used a poor form of magnetic tracking for its handheld controller.

EM tracking was researched by Neuralink for the purposes of tracking monkeys' body movements.

Magnetic tracking was researched by Neuralink for the purposes of tracking monkeys' body movements.

== AC magnetic tracking ==

== AC magnetic tracking ==

AC magnetic tracking uses fluctuating magnetic fields generated by a source and picked up by a sensor. The sensor can be about 2mm thick.

AC magnetic tracking stands for alternating current magnetic tracking. It uses fluctuating magnetic fields generated by a source and picked up by a sensor. The sensor can be about 2mm thick.

The fastest electromagnetic tracking system in the world is the Polhemus Viper 16, which tracks up to 960hz. This is much faster than the 100hz of all existing consumer VR systems. It provides a more natural feel and preserves transients in the movement.

The fastest electromagnetic tracking system in the world is the Polhemus Viper 16, which tracks up to 960hz. This is much faster than the 100hz of all existing consumer VR systems. It provides a more natural feel and preserves transients in the movement.