Body Current Compensation Using an Isolated Conductive Plate
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Solution Overview
Problem
Humans are continuously exposed to alternating electric and magnetic fields in daily environments, leading to potential biological effects that are difficult to quantify due to varying exposure levels and individual immunity differences, with existing solutions primarily focusing on minimizing interference with biopotential measurements rather than reducing displacement or eddy currents within the body.
Innovation Solution
A contactless system using an intermediate conductive plate and active electronic circuits to compensate for external alternating electric fields, and peripheral coils to counteract magnetic fields, ensuring continuous protection throughout the 24-hour life cycle without the need for contact or adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing compensation systems focus on minimizing interference with biopotential measurements, then measurement quality is improved, but displacement and eddy currents within the body are not reduced
Solution Approach 1:
The patent introduces an intermediate conductive plate positioned between the human body and the electrified environment. This intermediary element captures and compensates for electric field coupling, preventing displacement currents from flowing through the body while also eliminating magnetic field-induced eddy currents, thereby addressing both measurement quality and harmful current reduction simultaneously
2Ease of manufacture
If safety exposure levels are set based on thermal effects only, then simple thermal thresholds are established, but biological effects at lower exposure levels are not protected against
Solution Approach 1:
The system proactively compensates for both electric and magnetic field coupling before harmful effects can occur. By continuously monitoring and actively counteracting field interactions through the intermediate plate and electronic circuits, the system prevents both thermal and biological effects from developing, providing comprehensive protection beyond simple thermal thresholds
3Object-affected harmful factors
If the intermediate plate is electrically isolated from both body and ground, then displacement currents are minimized, but system complexity increases
Solution Approach 1:
The electrically isolated intermediate conductive plate serves as a mediator that captures electric field coupling without creating displacement current pathways through the body. The isolation itself is the protective mechanism, and the system manages this complexity through integrated electronic monitoring and compensation circuits that automatically adjust to maintain optimal protection
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 effectively eliminates the influence of coupled electric and magnetic fields on the human body, operating automatically and seamlessly, reducing displacement and eddy currents to near zero, thus providing continuous protection across various environments.
Implementation Method 1
The intermediate plate compensates for the external electric fields by inducing opposite polarity charges when coupled with the body capacitively
Implementation Method 2
The peripheral coils counteract the magnetic fields by inducing opposite polarity currents
Data Source
AI summary
ProblemAll conductive bodies and particularly humans bodies, living in an electrified environment are traversed by alternating currents. Especially with the rise of electromobility, these currents are also present outside the typical house or office or factory environment, influencing the body almost during the whole 24 hours life cycle.SolutionThe invention proposes simple, contactless means to protect the body, by compensating the induced currents from the electrified environment. An isolated, intermediate conductive plate between the ground and the body is used to sense and minimize the induced currents. A coil at the periphery of the intermediate plate is used to sense and compensate the induced magnetic field, in its simplest embodiment.