Modular Magnetically Shielded Room for Low-Noise Magnetometers
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Solution Overview
Problem
Conventional magnetically shielded rooms for magnetic field detection systems are costly and difficult to construct, and they inefficiently shield against both electromagnetic and magnetic noise, which degrades the effectiveness of sensitive magnetometers.
Innovation Solution
A modular magnetically shielded room design comprising electrically conductive panels with mu-metal layers mounted internally and externally, forming a Faraday cage structure that effectively blocks electromagnetic and magnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional magnetically shielded rooms are constructed using traditional static structures, then shielding effectiveness is achieved, but construction cost and difficulty increase excessively
Solution Approach 1:
The shielded room is divided into modular panels that can be independently manufactured and assembled. Each panel contains integrated conductive shielding layers and magnetic shielding layers, allowing the room to be constructed from standardized modules rather than custom-built monolithic structures.
Solution Approach 2:
The patent combines electrically conductive materials (for electromagnetic shielding) with magnetic shielding materials (for magnetic field blocking) into composite panel structures. This integration of multiple shielding functions into single composite panels reduces overall construction complexity and cost while maintaining dual shielding effectiveness.
2Object-affected harmful factors
If conventional magnetically shielded rooms are built to provide comprehensive shielding, then background electromagnetic noise is reduced, but construction time and resource expenditure increase
Solution Approach 1:
The room structure is segmented into pre-fabricated panels that can be manufactured off-site and quickly assembled on-site. This modular approach significantly reduces construction time compared to traditional custom-built shielded rooms while maintaining comprehensive shielding coverage.
Solution Approach 2:
The shielding panels are pre-assembled and pre-configured with conductive and magnetic shielding layers before delivery to the construction site. This preliminary preparation of shielding components accelerates the overall construction process while ensuring proper shielding effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The modular design allows for efficient and cost-effective construction while providing robust shielding against electromagnetic and magnetic noise, enhancing the performance of magnetometers by minimizing background interference.
Implementation Method 1
forming a Faraday cage structure that effectively blocks electromagnetic and magnetic interference
Implementation Method 2
External mu-metal panels are mounted to the external surfaces of the electrically conductive panels of the walls, the floor, and the ceiling
Data Source
AI summary
Various embodiments comprise a modular magnetically shielded room to shield a magnetic field detection system from electromagnetic noise. In some examples, the magnetically shielded room comprises walls, a floor, and a ceiling that encloses an interior volume. The walls, floor, and ceiling comprise electrically conductive panels. Each panel comprises a flange to mechanically couple to adjacent panels. The mechanical coupling also electrically couples the panels. Electrically conductive backets are mechanically coupled to the flanges at the interfaces between the walls, floors, and ceiling. The mechanical coupling also electrically couples the brackets to the panels. Internal mu-metal panels are mounted to the internal surfaces of the electrically conductive panels of the walls, floor, and ceiling. External mu-metal panels are mounted to the external surfaces of the electrically conductive panels of the walls, floor, and ceiling.