CN2494018Y - 超导量子干涉仪磁屏蔽室 - Google Patents

超导量子干涉仪磁屏蔽室 Download PDF

Info

Publication number
CN2494018Y
CN2494018Y CN 01253514 CN01253514U CN2494018Y CN 2494018 Y CN2494018 Y CN 2494018Y CN 01253514 CN01253514 CN 01253514 CN 01253514 U CN01253514 U CN 01253514U CN 2494018 Y CN2494018 Y CN 2494018Y
Authority
CN
China
Prior art keywords
magnetic
layers
south
magnetic shielding
shielding material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 01253514
Other languages
English (en)
Inventor
刘大均
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 01253514 priority Critical patent/CN2494018Y/zh
Application granted granted Critical
Publication of CN2494018Y publication Critical patent/CN2494018Y/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

该磁屏蔽室设置三层磁屏蔽,对屏蔽室的四壁、顶层及地板,均用具有特高初始磁导率μoEF软合金带状屏蔽材料,南北走向环绕,同时南面的上、下两角和北面的上、两角均形成圆滑弧状绕制,并使接头处的屏蔽材料相互重叠,每二层屏蔽材料之间用非磁性材料作为骨架,屏蔽室的顶层、地板,和南北壁一起,构成三层屏蔽,屏蔽室的门,可设于东面或西面,用拉式门结构,拉门的两侧边,镶有屏蔽材料,并伸出门的两侧边,屏蔽门拉合时,该伸出的屏蔽材料与屏蔽室墙壁的磁屏蔽材料重叠,屏蔽室的地板,最上面和最底面及中间二层为木板,东西走向,每二层之间用金属条板支撑,南北走向,木板之间的间隙,用前述软合金带状磁屏蔽材料穿过。

Description

超导量子干涉仪磁屏蔽室
                        技术领域
本实用新型涉及一种医疗用的精密仪器超导量子干涉仪的磁屏蔽室。
                        背景技术
近年来，人们对生物电的研究，得到迅速发展，已在医学上得到应用，如心电图、脑电图等，但人们对人体的磁性活动研究，却落后若干年，其中主要原因是探测仪器达不到测量人体磁活动的要求，因为人体磁场强度很弱，例如，心磁场强度约为10-6GS(高斯)左右，肺磁场强度约为10-7GS-10-4GS(高斯)左右，而环境磁场强度却大得多，如地磁场约为5×10-1GS(高斯)左右，城市交流磁噪声达到10-4GS(高斯)左右，因此，如何从如此强大的磁噪声中，检出人体微弱的磁信号，便是人们近年来研究的课题，近年，出现了超导量子干涉仪高精度医用测量仪器，可测出人体微弱的磁活动信息，但是，必须屏蔽强大的环境磁噪声，目前，还没有理想的适于该仪器使用环境的磁屏蔽室。
                        发明内容
磁屏蔽分交流磁屏蔽和直流磁屏蔽，交流磁屏蔽较为简单，而直流磁屏蔽则非常困难，本实用新型对交流磁场，仍采用通常采用纯铝屏蔽材料，而对直流磁场，该磁屏蔽室设置三层磁屏蔽，对屏蔽室的四壁、顶层及地板，均用具有特高初始磁导率μoEF软合金带状屏蔽材料，南北走向环绕，同时南面的上、下两角和北面的上、两角均形成圆滑弧状绕制，并使接头处的屏蔽材料相互重叠，如此绕数圈构成一层屏蔽，每二层屏蔽材料之间不小于10公分，并用非磁性材料作为骨架，屏蔽室的顶层、地板，和南北壁一起，构成三层屏蔽，东壁和西壁，仍为南北走向绕制磁屏蔽材料，屏蔽室的门，可设于东面或西面，用拉式门结构，拉门的两侧边，镶有屏蔽材料，并伸出门的两侧边，屏蔽门拉合时，该伸出的屏蔽材料与屏蔽室墙壁的磁屏蔽材料重叠，屏蔽室的地板，最上面和最底面及中间二层为木板，东西走向，每二层之间用金属条板支撑，南北走向，木板之间的间隙，用前述软合金带状磁屏蔽材料穿过，这种结构的屏蔽室，其屏蔽效果，可达B＜10-12GS(高斯)左右，而且造价较低。
                        附图说明
附图1是本实用新型的正视剖视图。
附图2是屏蔽室地板结构剖视图。
附图3是屏蔽室拉门剖视图。
                        具本实施方式
请参阅附图1所示，在屏蔽室内空间5内，有盛液氮的杜瓦瓶超导量子干涉仪3，受测心磁图的病人6，图示有三层屏蔽2，用具有特高初始导磁率μoEF软合金带状屏蔽材料自南向北—自上向下—自北向南—自下向上绕数圈，构成一层屏蔽，每二层之间距离不小于10公分，用非磁性材料4作为骨架，墙壁的南面上下二角和北面上下二角，形成圆滑弧状，接头处的屏蔽材料相互重叠为圆滑状重叠1，7是地板结构，附图2是地板结构的剖视图，图中最上面和最底面及中间二层为木板8、12，中间用金属支柱9支撑，木板之间的三层间隙10，用前述软合金带状磁屏蔽材11料穿过，自北向南绕三层；屏蔽室的门13，设于东面，用拉式门结构，拉门13的两侧边，镶有二层前述屏蔽材料，并伸出门的两侧边14，屏蔽门拉合时，该伸出的屏蔽材料14与屏蔽室的墙壁磁屏蔽材料重叠，

Claims (1)

1，一种超导量子干涉仪磁屏蔽室，其特征在于：该磁屏蔽室设置三层磁屏蔽，对屏蔽室的四壁、顶层及地板，均用具有特高初始磁导率μoEF软合金带状屏蔽材料，南北走向环绕，同时南面的上、下两角和北面的上、两角均形成圆滑弧状绕制，并使接头处的屏蔽材料相互重叠，如此绕数圈构成一层屏蔽，每二层屏蔽材料之间不小于10公分，并用非磁性材料作为骨架，屏蔽室的顶层、地板，和南北壁一起，构成三层屏蔽，东壁和西壁，仍为南北走向绕制磁屏蔽材料，屏蔽室的门，可设于东面或西面，用拉式门结构，拉门的两侧边，镶有屏蔽材料，并伸出门的两侧边，屏蔽门拉合时，该伸出的屏蔽材料与屏蔽室墙壁的磁屏蔽材料重叠，屏蔽室的地板，最上面和最底面及中间二层为木板，东西走向，每二层之间用金属条板支撑，南北走向，木板之间的间隙，用前述软合金带状磁屏蔽材料穿过。
CN 01253514 2001-09-06 2001-09-06 超导量子干涉仪磁屏蔽室 Expired - Fee Related CN2494018Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01253514 CN2494018Y (zh) 2001-09-06 2001-09-06 超导量子干涉仪磁屏蔽室

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01253514 CN2494018Y (zh) 2001-09-06 2001-09-06 超导量子干涉仪磁屏蔽室

Publications (1)

Publication Number Publication Date
CN2494018Y true CN2494018Y (zh) 2002-05-29

Family

ID=33662999

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01253514 Expired - Fee Related CN2494018Y (zh) 2001-09-06 2001-09-06 超导量子干涉仪磁屏蔽室

Country Status (1)

Country Link
CN (1) CN2494018Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107564868A (zh) * 2017-07-07 2018-01-09 清华大学 一种超导量子计算芯片的集成封装结构和方法
CN112942614A (zh) * 2021-03-03 2021-06-11 哈尔滨工业大学 光纤光栅与介电弹性体结合的近零磁空间的主动隔振装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107564868A (zh) * 2017-07-07 2018-01-09 清华大学 一种超导量子计算芯片的集成封装结构和方法
CN107564868B (zh) * 2017-07-07 2019-08-02 清华大学 一种超导量子计算芯片的集成封装结构和方法
CN112942614A (zh) * 2021-03-03 2021-06-11 哈尔滨工业大学 光纤光栅与介电弹性体结合的近零磁空间的主动隔振装置

Similar Documents

Publication Publication Date Title
Cohen et al. Magnetic determination of the relationship between the ST segment shift and the injury current produced by coronary artery occlusion.
US5043529A (en) Construction of shielded rooms using sealants that prevent electromagnetic and magnetic field leakage
Benz et al. Sharpness of upper-mantle discontinuities determined from high-frequency reflections
He et al. A high-performance compact magnetic shield for optically pumped magnetometer-based magnetoencephalography
US6731968B2 (en) Magnetically shielded room with internal active magnetic field cancellation, and its use
Liebl et al. Quantitative imaging of magnetic nanoparticles by magnetorelaxometry with multiple excitation coils
CN2494018Y (zh) 超导量子干涉仪磁屏蔽室
US20040106863A1 (en) Magnetic shields and instruments for measuring biomagnetic fields
Zakosarenko et al. Coreless SQUID-based cryogenic current comparator for non-destructive intensity diagnostics of charged particle beams
US6172587B1 (en) Ferromagnetic spatial shielding for the superconducting high field magnet of an NMR spectrometer
EP0277283B1 (de) Biomagnetische Messeinrichtung
Cohen Detection and analysis of magnetic fields produced by bioelectric currents in humans
Korhonen et al. Magnetocardiographic intra‐QRS fragmentation analysis in the identification of patients with sustained ventricular tachycardia after myocardial infarction
EP0719898A1 (en) Support pillar system for a magnetic-shielded room
Zhang et al. Applications of high-temperature SQUIDs
Scott et al. Large-volume, magnetically shielded room: A new design and material
Yu et al. Closed-cycle cryocooled SQUID system with superconductive shield for biomagnetism
WO2021242868A1 (en) Systems and devices for detecting coronary artery disease using magnetic field maps
JPH0610965Y2 (ja) 磁気シールドケース
JPH01308536A (ja) 磁気遮蔽室
CN216091884U (zh) 一种心内科低压脉冲理疗装置
Benz et al. from high-frequency
Boismier et al. Magnetocardiography in weak dc ambient magnetic fields
Carmina et al. First-order SQUID gradiometer with electronic subtraction for magnetocardiography
JPH03121048A (ja) Ｍｒｉ用シールドルーム

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee