公开(公告)号：WO1992012436A1

公开(公告)日：1992-07-23

申请号：PCT/US1991009194

申请日：1991-12-20

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： BIOMAGNETIC TECHNOLOGIES, INC. ,  MARSDEN, James, R.

IPC: G01R33/035

CPC classification number: G01R33/0354 ,  H01L39/045 ,  Y10S505/846

Abstract: A SQUID package includes a layered SQUID base (24) and a SQUID (22) mounted upon the base. The SQUID base is formed as a first substrate layer (30) of an electrically insulating material, a shielding layer (28) of a material that is superconducting at the SQUID operating temperature overlying the first substrate layer, and a second substrate layer (26) of an electrically insulating material overlying the shielding layer. The shielding layer protects the SQUID from dc and ac interference such as magnetic and electrical fields, which would otherwise interfere with its operation.

公开(公告)号：WO1992001362A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004775

申请日：1991-07-10

Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

Inventor： BIOMAGNETIC TECHNOLOGIES, INC. ,  VANESKY, Frank, W. ,  MARSDEN, James, R. ,  BUCHANAN, David, S.

IPC: H05K09/00

CPC classification number: H05K9/0001 ,  A61B5/0046 ,  A61B5/04005

Abstract: A shielded room (20) is constructed by mechanically attaching electrically conducting facing sheets (32) to the beams (30) of a frame in a manner such that there is a continuous electrical current flow path (44) between the facing sheets. The mechanical interfaces in the current flow path are sealed with a layer of copper or zinc (34) at the interface, the copper or zinc layer being preferably applied to one or both of the pieces that meet at the interface by a spraying technique such as plasma spraying. The copper or zinc connector seal ensures a continuous current flow path along the length of the mechanical interface, and prevents leakage of electromagnetic energy into the interior of the room. A magnetic field barrier such as sheets (48) of mu-metal can be supported on the assembled structure. The room (20) is readily assembled with mechanical fasteners (42), which permits it to be later disassembled and moved if necessary.

Abstract translation: 屏蔽室（20）通过将导电面对片材（32）机械地附接到框架的梁（30）而构造，使得在相对的片材之间存在连续的电流流动路径（44）。 电流流路中的机械界面在界面处用一层铜或锌（34）密封，铜或锌层优选地通过喷涂技术例如在界面处相遇的一个或两个片施加 等离子喷涂。 铜或锌连接器密封件确保沿着机械接口的长度的连续电流流动路径，并且防止电磁能量泄漏到房间的内部。 可以在组装的结构上支撑诸如mu金属片（48）的磁场屏障。 房间（20）容易地装配有机械紧固件（42），这允许其随后被拆卸和移动（如果需要的话）。