LINEAR MOVEMENT DETECTOR Russian patent published in 1999 - IPC

FIELD: instruments, in particular, measuring position and speed in tracing electric drive. SUBSTANCE: device has magnetic amplifier with magnetic circuit which is designed as double-P frame. In addition device has three parallel stationary rod magnetic circuits, which are connected to magnetic circuit of amplifier in perpendicular to its plane. Direct current excitation circuits of extreme stationary magnetic circuits are connected to middle stationary magnetic circuit by means of two mobile cores with measuring windings. Magnetic amplifier has four-compartment winding with load resistor in its circuit. Movement of mobile cores alters bias of magnetic amplifier. This results in possibility to calculate algebraic sum of linear movements of two monitored objects. In addition movement of mobile cores induces electromotive force in measuring windings, which also provides possibility to calculate algebraic sum of speed of monitored objects upon opposing connection of windings. EFFECT: increased functional capabilities. 1 dwg