vertical field balance
vertical field balance
[′vərd·ə·kəl ′fēld ‚bal·əns] (engineering)
An instrument that measures the vertical component of the magnetic field by means of the torque that the field component exerts on a horizontal permanent magnet.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.