LINEAR MOVEMENT INDUCTION PICKUP Russian patent published in 1994 - IPC

FIELD: measurement technology. SUBSTANCE: linear movement induction pickup has S-shaped magnetic circuit 1 with sections 2 and 3 of excitation winding located on its bends connected in parallel and pair of sections 4 and 5 of measurement coil mounted for joint movement along proper free end of magnetic circuit and coupled to object under monitoring in process of measurements. Supplementary magnetic circuit 6 is attached with one of its bends to bend of basic magnetic circuit 1. Supplementary section of excitation winding connected in series with main section 3 is put on their common bend, second supplementary section 7 of excitation winding connected in parallel to second main section 2 of excitation winding is located on second bend. Pair of sections 8 and 9 of supplementary measurement coil is coupled kinematically to second object under monitoring. Pairs of sections of both measurement coils are connected in series which makes it possible to sum algebraically movement of both objects. EFFECT: expanded application field thanks to its capability to measure movements of several objects under monitoring. 2 cl, 2 dwg