vertical intensity variometer
vertical intensity variometer[′vərd·ə·kəl in¦ten·səd·ē ‚ver·ē′äm·əd·ər]
A variometer employing a large permanent magnet and equipped with very fine steel knife-edges or pivots resting on agate planes or saddles and balanced so that its magnetic axis is horizontal. Also known as Z variometer.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.