DISPLACEMENT TRANSDUCER Russian patent published in 1999 - IPC

FIELD: measurement of position of shaft in gas inspection module. SUBSTANCE: displacement transducer has several sensitive Hall elements which outputs are connected to inputs of summing amplifier and ferromagnetic element manufactured in the form of hollow cylinder mounted for movement along its axis. Outer surface of ferromagnetic element is magnetic pole of first polarity and inner surface is magnetic pole of second polarity. Hall elements are placed equidistantly along circumference located in plane perpendicular to axis of ferromagnetic element. Outer surface of each Hall element is located in plane tangent to circumference in which points sensitive elements are positioned. EFFECT: improved operational reliability and efficiency of displacement transducer. 5 cl, 3 dwg