MEASUREMENT DEVICE OF ELECTRIC GAUGE Russian patent published in 2008 - IPC G01R5/02 

FIELD: physics.

SUBSTANCE: measurement device of electric gauge includes a clip in the form of cylindrical ring with struts and axis installed in the clip struts with space for rotation, non-magnetic frame attached to the axis, fixed in the clip circle-wise together with a constant magnet in the form of radially magnetised ring, search coil in the form of ring winding on framework, and magnetic conductor. At that, search coil framework is a cylindrical ferromagnetic ring, while the coil is attached to non-magnetic frame and placed inside the constant magnet ring. The constant magnet is fixed fast in the clip, between it and the clip a rigid magnetic conductor is set fast in the form of cylindrical ring of clamp-form cross-cut, so that the outer cylindrical ring cavity contains two internal cylindrical rings rigidly conjugated to it by common face ends. Search coil is placed between face ends of internal rings of magnetic conductor, so that the cylindrical ring of search coil framework and internal rings of magnetic conductor are set vertically one above another over some clearance. The second variant of the invention allows search coil in the form of parts of winding wound as annular sectors around the elements.

EFFECT: higher sensitivity and quality factor.

4 cl, 10 dwg