Gravitational Field Detection via Induced Current in a Conductor Loop

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Solution Overview

Problem

Existing technologies for detecting gravitational fields require physical masses as references, which necessitate precise motion control and stabilization, and large interferometers are expensive and cumbersome, limiting their practicality and scalability.

Innovation Solution

A method and apparatus that convert dynamical gravitational fields into measurable electric currents using a predefined magnetic field and an electrical conductor loop, eliminating the need for moving parts by inducing an electric current in a closed loop due to spacetime curvature changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If physical masses are used as references for gravitational field detection, then measurement capability is achieved, but motion control and stabilization requirements increase device complexity

Engineering Contradiction:
Improvegravitational field detection capabilityVSAvoidmotion control and stabilization requirements
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical system of physical reference masses with an electromagnetic system. A test charge is used instead of a test mass, and electromagnetic forces replace gravitational forces for measurement purposes. This substitution eliminates the need for mechanical motion control and stabilization of physical masses while maintaining gravitational field detection capability through the interaction of electromagnetic fields with the test charge.

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

2Measurement precision

If large interferometers are used for gravitational wave detection, then detection sensitivity is improved, but cost and device size increase significantly

Engineering Contradiction:
Improvedetection sensitivityVSAvoiddevice size and cost
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces large-scale mechanical interferometer systems with a compact electromagnetic measurement system. By using electromagnetic fields and a test charge in a controlled environment, the system achieves gravitational wave detection sensitivity without requiring kilometer-scale mechanical structures, thereby dramatically reducing device size and associated costs.

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

Solution Approach 2:

The patent changes the fundamental measurement parameters from mechanical displacement detection in large interferometers to electromagnetic field interaction detection. By measuring the motion of a test charge under gravitational influence through electromagnetic coupling, the system achieves equivalent or superior sensitivity with much smaller physical dimensions.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If physical masses are used for gravitational measurement, then absolute measurement capability is achieved, but noise from mechanical vibrations and environmental factors increases

Engineering Contradiction:
Improveabsolute measurement capabilityVSAvoidnoise from mechanical vibrations and environmental factors
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent replaces mechanical reference masses with an electromagnetic test charge system. This substitution eliminates noise sources associated with mechanical vibrations, thermal expansion, and environmental mechanical disturbances. The electromagnetic system is inherently more isolated from these classical noise sources while maintaining absolute measurement capability through direct coupling to gravitational effects on the test charge.

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

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

This approach allows for precise detection of gravitational field changes without requiring motion-stabilized physical masses, reducing noise sources and costs, and enabling compact, cost-effective devices for various applications.

Implementation Method 1

detecting an electrical signal induced in the loop in response to a dynamical dimensional change of the surface area caused by a dynamical change of the gravitational field

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP4421539B1Method and apparatus for detecting a dynamical change in a gravitational field
Publication Date: 2026.04.22 FORSCHUNGSZENTRUM JULICH GMBH
  • EP4421539B1 patent drawingFigure 1~2
  • EP4421539B1 patent drawingFigure 3~4
  • EP4421539B1 patent drawingFigure 5

AI summary

A method and apparatus for detecting a dynamical change in a gravitational field is disclosed by conversion into measurable electric signals induced in a conductor loop.