Undulating-Conductor Wireless Sensor 3D Tuning

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Solution Overview

Problem

Traditional wireless sensors with planar spiral-trace designs face limitations in performance tuning, as modifications can only be made within the plane of the sensor, failing to address three-dimensional performance-related attributes effectively.

Innovation Solution

A wireless sensor featuring an undulating electrical conductor that extends along a spiral path in three dimensions, allowing for additional tuning variability through periodic and constant-amplitude or non-periodic and varying-amplitude wave patterns, which can be woven into or embedded within non-conducting materials, enabling enhanced resonance and harmonic response.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a planar spiral-trace sensor design is used, then the sensor can be manufactured and embedded in substrates, but performance tuning is limited to two dimensions only

Engineering Contradiction:
Improveperformance tuning capabilityVSAvoidsensor structure dimensionality
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies dimensionality change by transitioning from a planar two-dimensional spiral trace to a three-dimensional undulating conductor structure. The conductor undulates in the vertical dimension while maintaining its spiral path, adding a third dimension for performance tuning. This allows modification of sensor characteristics through vertical displacement and undulation amplitude in addition to the traditional planar parameters, thereby resolving the limitation of two-dimensional tuning.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Manufacturing precision

If the number of turns, width, and spacing in the spiral are altered for optimization, then sensor performance can be tuned, but only within the plane of the sensor

Engineering Contradiction:
Improvesensor performance optimizationVSAvoidthree-dimensional performance attributes
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent extends performance optimization from two-dimensional planar adjustments to three-dimensional tuning by incorporating vertical undulation. The conductor's vertical displacement and undulation amplitude become additional design parameters, enabling optimization of three-dimensional performance attributes such as magnetic field coupling and resonance characteristics that cannot be achieved with planar geometry alone.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent introduces new geometric parameters including undulation amplitude, vertical displacement, and undulation wavelength in addition to the traditional spiral parameters. These parameter changes enable comprehensive tuning of sensor performance across three dimensions, allowing precise control over magnetic field interaction and resonance behavior through systematic variation of multiple geometric variables.

Inventive Principle:
Principle #35Parameter changes

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 improved performance tuning in three dimensions, enabling more precise sensor responses and harmonics, and facilitates integration into various materials and structures for enhanced sensing capabilities.

Implementation Method 1

Each undulating electrical conductor has inductance and capacitance wherein, in the presence of a time-varying magnetic field, the undulating electrical conductor(s) resonates to generate a harmonic response.

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

Each undulating electrical conductor has inductance and capacitance wherein, in the presence of a time-varying magnetic field, the undulating electrical conductor(s) resonates to generate a harmonic response.

Methodology Applied
Scientific EffectResonance: Resonance

Data Source

PatentUS10746769B2Undulating-conductor wireless sensor and sensing system
Publication Date: 2020.08.18 TEXTILE INSTR LLC
  • US10746769B2 patent drawing
  • US10746769B2 patent drawing
  • US10746769B2 patent drawing

AI summary

A wireless sensor includes at least one undulating electrical conductor. The undulating electrical conductor(s) extends along a spiral path between its first end and second end that remain electrically unconnected. Each undulating electrical conductor has inductance and capacitance wherein, in the presence of a time-varying magnetic field, the undulating electrical conductor(s) resonates to generate a harmonic response.