Changes

A [[trihedral source]] can be used.<ref name="w251">{{cite web | title=Position and orientation measuring system having anti-distortion source configuration | website=Google Patents | date=1995-06-05 | url=https://patents.google.com/patent/US5640170A/ | access-date=2024-08-22}}</ref>

A [[trihedral source]] can be used.<ref name="w251">{{cite web | title=Position and orientation measuring system having anti-distortion source configuration | website=Google Patents | date=1995-06-05 | url=https://patents.google.com/patent/US5640170A/ | access-date=2024-08-22}}</ref>

==Examples==

==Commercial systems==

* [[Polhemus Viper]]

* [[Polhemus Viper]]

* [[AMFITRACK]]<ref name="c843">{{cite web | title=AMFITRACK™ Gen2 Demo Kit explained 2017_10_03 | website=YouTube | date=2024-03-06 | url=https://www.youtube.com/watch?v=X9ALvqmkmaM | access-date=2024-05-31}}</ref>

* [[AMFITRACK]]<ref name="c843">{{cite web | title=AMFITRACK™ Gen2 Demo Kit explained 2017_10_03 | website=YouTube | date=2024-03-06 | url=https://www.youtube.com/watch?v=X9ALvqmkmaM | access-date=2024-05-31}}</ref>