Amorphous magnetic and mechanical elements annealed in a transverse magnetic field for use in electronic goods retrieval devices and methods for manufacturing the same

摘要

The present invention seeks to produce a ribbon strip of amorphous magnetic alloy that is heat treated while a transverse saturated magnetic field is applied. The heat treated strips are used in pulse-search electronic article retrieval devices. Preferred materials as strips are formed of at least 30 atomic percent cobalt, boron, silicon and iron.