QT-Shield: Compact lightweight high performance magnetic shielding enabling portable & miniaturised quantum technology systems

QT-Shield：紧凑、轻量化、高性能磁屏蔽，可实现便携式

基本信息

批准号：
EP/R002789/1
负责人：
Kai Bongs
金额：
$ 10.69万
依托单位：
University of Birmingham
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2017
资助国家：
英国
起止时间：
2017 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FR002789%2F1
关键词：
QT Shield Compact lightweight performance

项目摘要

Magnetic shielding is an essential component of all second generation quantum technology (QT) systems necessary to eliminate magnetic interference and enable quantum behaviour to be observed. For accurate operation magnetic fields must be reduced to <150 microGuass with <0.1% variation. A particular challenge for quantum systems is shielding of low frequency (<40Hz) and DC magnetic fields. Best available materials are soft magnetic alloys, such as MuMetal. Due to limited shielding design knowhow, manufacturers currently adopt a costly trial and error design approach. Shield geometries are kept simple (spherical / cylinders) as these are known to provide reliable conduction surfaces; whilst material thickness is kept high to ensure reliable shielding. Existing shielding is thus heavy and bulky, limiting the advancement of QT towards portable and miniaturised systems. Shielding is uniquely designed for each application, often with low production volume. Production is currently through hand machining in workshops; thereby limiting production sale-up and creating a vulnerability to low wage economies abroad.The QT-Shield solution will apply advanced shielding design principles for the realisation of high performance compact-lightweight magnetic shielding delivering a >50% reduction in weight and >40% reduction in area compared to conventional approaches. Such shield designs will be achieved by:- making the shields more compact so that less shield area (and thus material) is required; and - minimising layer thickness to only that which is required (at that point) to achieve the target magnetic field environment at the site of interest.High performance shielding will be maintained, despite deviations from near spherical / cylindrical geometries through advanced 'idealised' shielding geometries and clever use of multi-layer systems. The compact shielding designs will be made through the integration of advanced manufacturing techniques:- 3D Printing - enabling accurate direct printing of fully (individually) customisable complex shielding shapes - 5-Axis milling - enabling tailored reduction of material thickness across the entire shielding area3D printing and 5-Axis machining are fully automated manufacturing processes enabling shielding production to transition towards mass customisation (high volume production of unique shield shapes).The purpose of the QT-Shield project is to demonstrate feasibility for: i) use of advanced design principles for the realization of lightweight, compact and high performance magnetic shielding suitable for QT applications; ii) manufacture of advanced designs using 3D printing and 5-axis machining; and iii) use of the advanced shielding designs for protection of a quantum gravity sensor demonstrator system. Project outputs will include:- Market study identifying the most important opportunities & requirements for compact magnetic shielding- Demonstration of feasibility for achieving >50% weight and >40% volume reduction whilst maintaining reliable shielding performance - Demonstration of feasibility for the manufacture of complex shielding designs using 3D printing and 5-axis milling techniques- Prototype compact lighting shielding system demonstrating feasibility for protection of an existing quantum gravity sensor systemHigh performance, lightweight, fully customisable magnetic shielding not only addresses the emerging market needs of quantum devices (enabling the realisation of compact portable and miniaturised devices); but also important needs across a broad range of existing market sectors (opening new market applications within aerospace, defence, space, automotive, electronics etc...). Furthermore, knowledge based advanced shielding designs also provide clear differentiation within the market and, when combined with highly automated manufacturing process enabling mass customisation at low cost, support the long term competitiveness of UK industry.

磁屏蔽是所有第二代量子技术（QT）系统的重要组成部分，以消除磁干扰并能够观察到量子行为。为了精确的操作，必须将磁场降低到<150个微糖量，<0.1％变化。量子系统的一个特殊挑战是屏蔽低频（<40Hz）和直流磁场。最佳可用材料是软磁合金，例如Mumetal。由于屏蔽设计知识有限，制造商目前采用了昂贵的反复试验方法。屏蔽几何形状保持简单（球形 /圆柱体），因为已知这些几何形状可提供可靠的传导表面；虽然材料厚度保持较高，以确保可靠的屏蔽。因此，现有的屏蔽量很重且笨重，从而将QT的进步限制在便携式和微型化系统上。屏蔽是为每个应用程序设计的独特设计的，通常为较低的生产量。当前生产是通过研讨会中的手工加工来进行的。从而限制了生产销售并造成了国外低工资经济体的脆弱性。QT屏幕解决方案将应用高级屏蔽设计原理，以实现高性能紧凑型轻量级磁性屏蔽，与常规方法相比，重量减轻了> 50％，减轻了> 40％。将通过以下方式实现此类盾牌设计，使盾牌更紧凑，因此需要更少的盾牌面积（以及材料）； - 将层厚度最小化，仅将所需的层厚度（此时）达到目标磁场环境。尽管通过近乎球形 /圆柱形的几何形状偏离了高级“理想化的屏蔽”几何形状和巧妙的多层系统的使用，但仍将保持高性能屏蔽。紧凑型屏蔽设计将通过整合高级制造技术进行： - 3D打印 - 实现完全（单独的）可自定义的复杂屏蔽形状（5轴铣削）的准确直接打印 - 可实现整个屏蔽面积打印量的质量构造，以使质量构建量的质量为5轴构造，从而使质量构成5轴的质量制造工具，以使其构建范围的质量范围，从而使制造范围构建范围的生产范围，使得越来越自动化的范围跨度跨度跨度的生产（跨度跨度的生产量）形状）。QT-Shield项目的目的是证明以下可行性：i）使用高级设计原理来实现适合QT应用的轻质，紧凑和高性能磁屏蔽； ii）使用3D打印和5轴加工制造高级设计； iii）使用先进的屏蔽设计来保护量子重力传感器演示器系统。项目成果将包括： - 市场研究，确定紧凑磁屏蔽的最重要机会和要求 - 实现可行性> 50％的重量> 50％和> 40％的体积减少，同时保持可靠的屏蔽性能 - 证明使用3D打印量的复杂屏蔽设计的可行性证明可行性，用于使用3D打印量和5轴固定系统的固定范围 - 固定系统的固定量，以证明其固定型系统的范围 - 性能，轻巧，完全可定制的磁屏蔽不仅满足了量子设备的新兴市场需求（实现紧凑的便携式和微型设备）；但是，在广泛的现有市场领域（在航空航天，国防，太空，汽车，电子产品等内开放新的市场应用程序中）也重要的需求也很重要。此外，基于知识的先进屏蔽设计还提供了市场内的明显差异化，并且与高度自动化的制造过程相结合，以低成本实现大规模定制，支持英国行业的长期竞争力。

项目成果

期刊论文数量（4）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Microstructure-magnetic shielding development in additively manufactured Ni-Fe-Mo soft magnet alloy in the as fabricated and post-processed conditions

DOI：
10.1016/j.jallcom.2021.161112
发表时间：
2021-07-15
期刊：
JOURNAL OF ALLOYS AND COMPOUNDS
影响因子：
6.2
作者：
Mohamed, Abd El-Moez A.;Sheridan, R. S.;Attallah, Moataz M.
通讯作者：
Attallah, Moataz M.

Additive manufacturing of magnetic shielding and ultra-high vacuum flange for cold atom sensors.

DOI：
10.1038/s41598-018-20352-x
发表时间：
2018-01-31
期刊：
Scientific reports
影响因子：
4.6
作者：
Vovrosh J;Voulazeris G;Petrov PG;Zou J;Gaber Y;Benn L;Woolger D;Attallah MM;Boyer V;Bongs K;Holynski M
通讯作者：
Holynski M

Magnetic shielding promotion via the control of magnetic anisotropy and thermal Post processing in laser powder bed fusion processed NiFeMo-based soft magnet

通过激光粉末床熔融加工 NiFeMo 基软磁体中磁各向异性和热后处理的控制来促进磁屏蔽