Patent ID: 7471083
Filing Date: 2008-12-30
Classification: G01R

Abstract:
1. An apparatus for observing magnetic phenomena, including a force couple of the magnetic field, comprising: a base having a substantially planar upper surface; a cylinder disposed in an upright position on the upper surface of said base, said cylinder being rigid, hollow, having a lower end and an upper end, being open at least at said upper end, and having a pair of opposing apertures disposed in the side of said cylinder; at least one magnet placed on said base at said lower end of said cylinder in a manner such that the magnetic field of said at least one magnet is perpendicular to said base; specimen suspending means slidingly disposed at said upper end of said cylinder; a ferrous specimen fabricated from a ferrous material and a nonferrous specimen fabricated from a nonferrous material, either of said nonferrous specimen and said ferrous specimen selectively connected to said specimen suspending means when the other of said specimens is not connected to said specimen suspending means, whereby the specimen is suspending along the longitudinal axis of said cylinder; at least one shaft disposed through the opposing apertures in said cylinder; and biasing means disposed inside said cylinder between said specimen suspending means and said shaft.