POSITION PICKUP Russian patent published in 2003 - IPC

FIELD: electronics. SUBSTANCE: position pickup incorporates magnetic circuit, induction coil and anchor connected in series put on magnetic circuit. Teeth profiled along travel of anchor are cut over entire length of anchor. Every two teeth form one channel and are profiled in symmetry in opposite directions. Magnetic circuit is installed perpendicular to travel of anchor and has same number of teeth with coil as anchor has. Each coil includes two windings. Windings put on different teeth of one channel are connected in series. EFFECT: simplified design of multichannel long-travel position pickup, reduced length of position pickup. 1 cl, 3 dwg