PHASE INDICATOR OF LINEAR MOVEMENTS Russian patent published in 2006 - IPC G01B7/00 

FIELD: measuring equipment engineering, possible use for transformation of linear movement to phase shift proportional thereto between output voltage and supporting voltage of generator.

SUBSTANCE: indicator has information line, consisting of magnetic duct with teeth of even length, magnetic link of ferromagnetic material, capable of moving along magnetic duct. Onto teeth of magnetic duct three windings are placed, active sides of which are positioned in parallel to axis of information line. Number of coils of one of windings is altered in accordance to sinusoidal law in dependence of order number of tooth. Number of coils of second winding is altered in accordance to cosinusoidal law. Number of coils of third winding is same at all teeth and it envelopes a number of teeth, equal to period of placement of sine and cosine windings.

EFFECT: improved reliability and decreased error of measurements.

4 dwg