A sensor for remote detection of objects (20), preferably for use in an article surveillance system, comprises a wireshaped element (22), which is arranged to be excited and detected electromagnetically. The wireshaped element (22) has a diameter less than 30 .mu.m. The element is arranged to transmit...http://www.google.fr/patents/US6232879?utm_source=gb-gplus-shareBrevet US6232879 - Sensor and method for remote detection of objects
