FIFA will introduce goal-line technology at the Club World Cup in Japan, and plans to use it in Brazil at the 2013 Confederations Cup and 2014 World Cup.
Van Persie had been linked with a move to the Etihad Stadium even before Wednesday's announcement that he would not be extending his Gunners contract.
The 23-year-old attacking left-back put pen to paper on a five-year contract with Barca having passed his medical with the Catalan giants earlier on Thursday.
Internacional says the 33-year-old striker signed a contract until July 2015 and will be introduced to fans on Saturday.
The Uruguayan striker has been linked to several of Europe's leading clubs, including Inter Milan, Chelsea, Manchester City and Paris St Germain.