Keywords: Inductance detectors.jpg Induction loops for signal controls Taken using iphone 2g in Irvine California Transferred from http //en wikipedia org en wikipedia to Commons by User ТимофейЛееСуда using http //tools wikimedia de/~magnus/commonshelper php CommonsHelper 2010-02-21 Swerty at http //en wikipedia org en wikipedia Swerty Original upload log page en wikipedia Inductance_detectors jpg 2010-02-21 00 04 Swerty 600×800× 193252 bytes <nowiki>Taken using iphone 2g in Irvine Ca</nowiki> Assistive technology Electrical parts and components Electrodynamics Magnetism Military technology |