Electrical Potential Difference Sensing in Non-Biomedical Applications

Publication ID: 24-11857328_0007_PTD
Published: November 07, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Electrical Potential Difference Sensing in Non-Biomedical Applications,” Published Technical Disclosure No. 24-11857328_0007_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857328_0007_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,328.

Summary of the Inventive Concept

This inventive concept leverages the core technology of the original patent to develop novel applications in non-biomedical fields, including soil moisture monitoring, pipeline corrosion detection, water quality monitoring, electrical fault detection in wind turbines, and structural health monitoring of buildings.

Background and Problem Solved

The original patent's active electrode technology was primarily designed for biomedical applications, such as sensing bio-potential signals. However, the limitations of this technology in terms of noise minimization and signal amplification can be applied to other industries where electrical potential differences need to be accurately measured. The new inventive concept addresses these limitations by adapting the core technology to various non-biomedical applications.

Detailed Description of the Inventive Concept

The inventive concept involves the use of active electrodes with chopper-modulated amplifiers and shields to minimize capacitive coupled noise in non-biomedical applications. This technology enables the accurate measurement of electrical potential differences in various environments, including soil, pipelines, water, wind turbines, and building structures. The new claims provide specific implementations of this technology in each of these applications, demonstrating the versatility and adaptability of the original patent's core technology.

Novelty and Inventive Step

The new claims introduce a novel and non-obvious application of the original patent's technology to non-biomedical fields, which was not contemplated in the original patent. The inventive step lies in the adaptation of the core technology to address specific challenges and limitations in each of these new applications, resulting in a significant expansion of the technology's potential uses.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different types of amplifiers or noise minimization techniques, as well as variations in the design and deployment of the active electrodes. Additionally, the technology could be adapted for use in other non-biomedical applications, such as monitoring electrical potential differences in industrial equipment or agricultural systems.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in various industries, including agriculture, oil and gas, renewable energy, construction, and environmental monitoring. The ability to accurately measure electrical potential differences in these industries could lead to improved efficiency, reduced costs, and enhanced safety.

Field of Art

Electrical sensing systems, signal processing, noise reduction techniques, with expertise in amplifier design, sensor instrumentation, and signal conditioning across biomedical and industrial sensing applications

Person of Ordinary Skill (PHOSITA) Profile

An electrical engineer with advanced degree, experienced in analog circuit design, noise minimization techniques, sensor signal processing, and capable of adapting sensing technologies across different domains

Obviousness Rationale

A PHOSITA would recognize the core technological principles of chopper-modulated amplification and noise reduction are universally applicable across sensing domains. The source patent's core innovations in electrical potential sensing can be directly translated to alternative applications by systematically replacing the biomedical context with industrial sensing scenarios. The fundamental signal processing techniques remain consistent, with only contextual modifications required.

Obvious Combinations & Variations

Source Patent Element
Chopper-modulated unity gain amplifier with active shielding for minimizing capacitive noise
PTD Variation
Applying identical amplification and noise reduction technique to soil moisture, pipeline, water quality, wind turbine, and structural monitoring sensors
Obviousness Reasoning
Known technique of signal conditioning can be predictably applied across sensing domains with minimal design modifications, representing a straightforward engineering adaptation
Source Patent Element
Frequency shift to avoid flicker noise region
PTD Variation
Implementing identical noise reduction strategy in non-biomedical sensor arrays with consistent amplifier design principles
Obviousness Reasoning
Noise reduction techniques are domain-independent, representing a standard engineering approach to signal quality improvement
Source Patent Element
Electric potential difference sensing methodology
PTD Variation
Extending sensing approach from biological signals to environmental and industrial potential difference measurements
Obviousness Reasoning
Fundamental signal sensing principles are transferable across domains, with contextual parameter adjustments representing routine engineering design choices
Source Patent Element
Active electrode with integrated amplification
PTD Variation
Deploying active electrode arrays in distributed sensing configurations across multiple industrial applications
Obviousness Reasoning
Modular sensor design principles allow predictable scaling and adaptation to different measurement environments
Source Patent Element
Electrical potential measurement with noise minimization
PTD Variation
Implementing consistent noise reduction strategies across diverse sensing contexts including soil, pipelines, water, wind turbines, and structural monitoring
Obviousness Reasoning
Signal conditioning techniques represent standard engineering practice with predictable implementation across sensing domains
35 U.S.C. § 103 Summary: Based on US Patent 11857328's comprehensive disclosure of electrical potential sensing techniques, a person having ordinary skill in the art would find the proposed variations in non-biomedical sensing domains to represent obvious extensions of the fundamental signal processing and noise reduction methodologies disclosed in the source patent, thereby rendering subsequent claims covering similar technological implementations anticipated and non-patentable.

Original Patent Information

Patent NumberUS 11,857,328
TitleActive electrode having a closed-loop unit-gain amplifier with chopper modulation
Assignee(s)T&W Engineering A/S