Wall-Integrated Magnetic Field Compensation Coils
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Solution Overview
Problem
Existing systems for active magnetic field compensation are often difficult to set up and calibrate, with coils forming obstacles and requiring complex cabling, which complicates the process and reduces flexibility.
Innovation Solution
A modular system with coils integrated into wall elements that can be connected via cable bridges or plug connectors, allowing for automatic addressing and control, enabling easy setup and flexible configuration, including the use of a bus for simplified coil addressing and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional active magnetic field compensation systems are used with freely placed coils on stands, then magnetic field compensation can be achieved, but the coils create obstructions in the room and the system is cumbersome to set up
Solution Approach 1:
The patent combines the coil housing with the wall structure itself, integrating the magnetic field compensation function into the room architecture. Instead of separate coil assemblies on stands, the coils are embedded within wall elements that form part of the room structure, eliminating obstructions while maintaining compensation functionality.
Solution Approach 2:
The wall elements serve dual functions: they provide structural partitioning of the room and simultaneously house the coils for magnetic field compensation. This multi-functionality reduces the number of separate components needed and simplifies setup.
2Object-affected harmful factors
If conventional active magnetic field compensation systems are used with freely placed coils, then magnetic field compensation can be achieved, but cables must be run across the room and the system requires calibration
Solution Approach 1:
The system is divided into modular wall elements, each containing its own coil and local controller. This segmentation allows each module to be independently configured and connected via simple daisy-chain cabling, reducing overall system complexity compared to running cables from a central controller to individually placed coils.
Solution Approach 2:
The controller is nested within the wall element structure, with local controllers embedded in each wall module. This hierarchical nesting allows for simplified cabling where each module communicates with its neighbors, reducing the need for extensive cross-room cabling.
3Ease of operation
If a modular system with wall-integrated coils is used, then setup convenience and flexibility are improved, but automatic addressing and control of multiple coils requires sophisticated cabling or addressing systems
Solution Approach 1:
Each wall element is equipped with a local controller that can independently manage its coil. The controllers communicate with neighboring modules through simple daisy-chain connections, allowing the system to self-configure and automatically address modules without requiring complex centralized control or manual calibration.
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 system allows for convenient and flexible magnetic field compensation, reducing setup complexity and enabling efficient active shielding of devices sensitive to magnetic interference, such as semiconductor processing equipment.
Implementation Method 1
a controller (11) for controlling the coils (8) for magnetic field compensation. The controller (11) includes a sensor (12) or is connected to a sensor (12) and, based on at least one sensor signal, controls the coils (8) with respect to polarity, current and frequency in such a way that they generate a magnetic field which at least partially compensates for an interference field present inside or outside the system
Data Source
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AI summary
A magnetic field compensation system comprising multiple coils, each arranged in a housing. The system also includes a controller for activating the coils for magnetic field compensation. The coils are connected to and addressed by the controller. The coil housing is designed as a wall element. A room, particularly a cleanroom, can be formed from these wall elements.