专利检索 ap:("Esaote S.p.A.") AND inv:"Paolo Iaia" 第 1 页

1.

发明授权
Magnetic field sensor, method for operating the said magnetic field sensor and method and system for compensation magnetic noise caused by environmental noise 有权

公开(公告)号：US11204407B2

公开(公告)日：2021-12-21

申请号：US16779894

申请日：2020-02-03

申请人： Esaote S.p.A.

发明人： Vincenzo Punzo , Paolo Iaia , Alessandro Trequattrini

IPC分类号： G01R33/387 , G01R33/00 , G01R33/09 , G01R33/48

摘要： Magnetic field sensor, in particular for measuring magnetic noise fields caused by environmental magnetic noise in combination with MRI apparatus, the magnetic field sensor being further provided with field compensation coils assembly and with a compensation circuit driving the field compensation coils assembly to generate a magnetic field compensating the static magnetic field dissipating outside from the static magnetic field generator or from the gantry of the MRI apparatus at the position of the magnetic sensor. A method for operating the magnetic field sensor and a method and a system for compensation magnetic noise caused by environmental noise are also provided. An MRI apparatus is also disclosed comprising such a system and carrying out such a method for compensating magnetic noise fields.