Patent ID: 7365275
Filing Date: 2008-04-29
Classification: G01G,Y10S

Abstract:
1. An electromagnetic-force-balancing-type electronic balance having a magnetic circuit which includes a plurality of components consisting of: a tubular-shaped yoke having an opening only on one side thereof; a first permanent magnet; a pole piece; a second permanent magnet; and a cover, wherein: said yoke is disposed to orient said opening in an upward direction; said first permanent magnet, said pole piece and said second permanent magnet being housed in an internal space of said yoke in this order along said upward direction, while allowing said first and second permanent magnets to be disposed such that their magnetic poles of the same polarity are opposed to one another; and said cover being disposed above said yoke, said electronic balance being characterized by comprising a magnetic connection member mechanically connecting between two selected from said components.