Superconducting Maxwell-Coil Levitation for Large Low-Gravity Volumes

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Solution Overview

Problem

Conventional magnetic levitation-based low-gravity simulators (MLSs) suffer from highly non-uniform magnetic fields, limited functional volumes, high energy consumption, and unsuitable for long-term experiments due to these issues.

Innovation Solution

Integration of a superconducting magnet with gradient-field Maxwell coils made of high-temperature rare-earth barium copper oxide (REBCO) superconducting tapes to produce a large, isotropic, and adjustable low-gravity environment with minimal energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of stationary object

If conventional solenoid magnetic levitation systems are used, then magnetic levitation can be achieved, but the functional volume is highly non-uniform and limited

Engineering Contradiction:
Improvefunctional volumeVSAvoidmagnetic field uniformity
Core Design Contradiction:
Volume of stationary objectVSStability of the object's composition

Solution Approach 1:

The system divides the magnetic field generation into two independent parts: a superconducting solenoid that provides a strong uniform base magnetic field, and separate gradient coils that provide controlled field gradients. This segmentation allows each component to optimize its function independently, achieving both large functional volume and field uniformity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines superconducting magnet technology with gradient coil technology into a unified magnetic levitation system. The superconducting solenoid and gradient coils work together synergistically, where the solenoid provides the main field and the gradient coils provide the necessary field variations for stable levitation control.

Inventive Principle:
Principle #5Merging (Combining)

2Power

If conventional resistive solenoid systems are used, then magnetic field can be generated, but energy consumption is high

Engineering Contradiction:
Improvemagnetic field strengthVSAvoidenergy consumption
Core Design Contradiction:
PowerVSUse of energy by moving object

Solution Approach 1:

The patent replaces the conventional resistive electrical system with a superconducting system. Superconducting materials have zero electrical resistance, eliminating Joule heating losses and enabling sustained high magnetic fields with minimal energy input, primarily only for cooling maintenance.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system changes the fundamental parameter of electrical resistance from finite (conventional) to zero (superconducting). This parameter change transforms the energy consumption characteristics, allowing continuous operation at high magnetic fields without the quadratic power loss proportional to current squared that plagues resistive systems.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If conventional magnetic levitation systems are used, then levitation can be achieved, but the system is complex and expensive

Engineering Contradiction:
Improvelevitation stabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The superconducting magnet provides inherent field stability and persistence without requiring continuous complex control systems. Once the superconducting current is established, it maintains itself without external power input, automatically providing stable levitation conditions and reducing the complexity of control electronics and power supply systems.

Inventive Principle:
Principle #25Self-service

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

Achieves a functional volume three orders of magnitude larger than conventional solenoid MLSs, enabling stable levitation of small plants and living organisms with low energy consumption, suitable for long-term simulations.

Implementation Method 1

A magnetic levitation-based low-gravity simulator (MLS) includes one or more gradient-field Maxwell coils disposed within a bore of a superconducting magnet

Methodology Applied
Scientific EffectMagnetic levitation: Maglev

Implementation Method 2

levitate diamagnetic samples of any size larger than the functional volume V1%

Methodology Applied
Scientific EffectDiamagnetism: Diamagnetism

Implementation Method 3

one or more gradient-field Maxwell coils made of high-temperature rare-earth barium copper oxide (REBCO) superconducting tapes

Methodology Applied
Scientific EffectSuperconductivity: Superconductivity

Data Source

PatentUS12512772B2Magnetic levitation based low-gravity system
Publication Date: 2025.12.30 FLORIDA STATE UNIV RES FOUND INC
  • US12512772B2 patent drawing
  • US12512772B2 patent drawing
  • US12512772B2 patent drawing

AI summary

An improved magnetic-levitation-based low-gravity simulator (MLS) is provided. The MLS comprises one or more gradient-field Maxwell coils that are provided within a superconducting magnet. When a current is provided to the one or more Maxwell coils and the superconducting magnet, a simulated low-gravity region is produced within the MLS. An object may be provided within this low-gravity region and may levitate within the region. The MLS may be used to test the impacts of low-gravity environments (for example, extraterrestrial environments) on different types of objects. Compared to an existing solenoid MLS, the improved MLS described herein includes a much larger volume low-gravity region at a lower energy expenditure.