MOTION METER (MODIFICATIONS) Russian patent published in 2003 - IPC

FIELD: induction meters of motion value of movable objects, in particular, float induction liquidometers. SUBSTANCE: the motion meter has the first winding fixed in the trajectory of motion and connected to the output of the pulse generator of linearly varying current, capacitor and the secondary winding connected to the capacitor and inductive-coupled to the first winding all positioned on the moving object, measuring unit, synchronized with the pulse generator of linearly varying current. In the first modification of the invention the input of the measuring unit is connected to the leads of the third winding fixed in the trajectory of motion and inductive-coupled to the second winding. The first and third windings are made for forming in the trajectory of motion of monotonously varying product M_1,2(x)•M_2,3(x), where M_1,2(x) and M_2,3(x) - mutual inductances of the respective windings, X-linear motion. In the second modification of the invention the input of the measuring unit is connected to the leads of the first winding, which is made for forming in the trajectory of motion of monotonously varying value of mutual inductance M_1,2(x) with the second winding, where X-linear motion. EFFECT: prevented errors of measurement caused by the influence of the interference of signal transformation from the exciting winding to the measuring one on the results of measurement. 3 cl, 3 dwg