公开(公告)号：US20160109478A1

公开(公告)日：2016-04-21

申请号：US14777667

申请日：2014-03-28

Applicant: AKITA UNIVERSITY ,  OSAKA UNIVERSITY

Inventor： Hitoshi SAITO ,  Satoru YOSHIMURA ,  Yukinori KINOSHITA ,  Hikaru NOMURA ,  Ryoichi NAKATANI

IPC: G01Q60/52

CPC classification number: G01Q60/52 ,  G01Q60/50 ,  G01Q60/54 ,  G01Q60/56

Abstract: A magnetic field measuring device including: a vibrational probe unit having a probe that includes one or more material(s) whose intensity of magnetization is proportionate to an external magnetic field, a mechanical vibration source for the probe; a vibration detector detecting a vibration frequency and amplitude of the probe; an alternating-current magnetic field generator applying to the probe an alternating-current magnetic field; a direct-current external magnetic field generator applying a direct-current external magnetic field to the probe; a frequency modulation detector detecting frequency modulation occurring to the mechanical vibration of the probe; a direct-current external magnetic field controller adjusting the intensity of the direct-current external magnetic field applied to the probe; and a direct-current magnetic field determination unit determining a value of the direct-current magnetic field originating from a specimen.

Abstract translation: 一种磁场测量装置，包括：振动探针单元，其具有探针，所述探针包括其强度与外部磁场成比例的一种或多种材料，所述探针的机械振动源; 检测探头的振动频率和振幅的振动检测器; 交流磁场发生器，向探头施加交流磁场; 将直流外部磁场施加到探针的直流外部磁场发生器; 检测对所述探针的机械振动发生的频率调制的频率调制检测器; 直流外部磁场控制器调节施加到探头的直流外部磁场的强度; 以及直流磁场确定单元，确定源自试样的直流磁场的值。