EDDY CURRENT METER Russian patent published in 2019 - IPC G01R27/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and can be used to control rotation of moving metal parts. Essence of the invention consists in the fact that eddy current meter of speed and direction of rotation additionally contains winding, which is connected through connecting cable to output of additional self-contained generator and input of additional rectifier, output of which through additional pulse shaper is connected to first input of logical circuit and first input of OR element, second input of logic circuit is connected to output of first pulse former, third input of logic circuit is connected to output of OR element, and output of logic circuit is connected to additional indicator, besides, additional excitation winding is installed in one plane near main winding at distance (0.5–1)D, where D is diameter of main and additional excitation windings, at that diameter of measuring mark on shaft is equal to or greater than (2.5–3)D.

EFFECT: expansion of the device functional capabilities.

1 cl, 2 dwg