公开(公告)号：US3254298A

公开(公告)日：1966-05-31

申请号：US30765163

申请日：1963-09-09

Applicant: BURROUGHS CORP

Inventor： ELLIS DAVID M ,  BADER CLIFFORD J

IPC: G01N22/00 ,  G01R33/12

CPC classification number: G01R33/1207 ,  G01N22/00

公开(公告)号：US3619772A

公开(公告)日：1971-11-09

申请号：US3619772D

申请日：1969-08-29

Applicant: BURROUGHS CORP

Inventor： ELLIS DAVID M

IPC: G01R33/02

CPC classification number: G01R33/02

Abstract: A thin magnetic film magnetometer is described in which the thin film sensor element is driven in both its easy and hard axes directions by oscillators having different frequencies. The nature of the signal appearing on a winding coupled to the thin film along its easy direction depends upon the angular position of the thin film magnetic moment or magnetization (M) vector and the film easy axis; which in turn is a function of an external field applied to the film along its hard axis. Both manual and automatic means are described for sensing the position of the M vector and restoring it to its rest position along the thin film easy axis- such action producing a measure of the magnitude and direction of the external applied field.