Planar Resonator Frequency Control for Selective Transducer Addressing
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Solution Overview
Problem
Existing methods for selectively addressing and energizing localized transducers in constrained spaces, such as implantable or insertable devices, often require multiple power paths, which can be bulky and impractical.
Innovation Solution
A planar resonator transmission line system that uses a single main-line to control energy flow by adjusting the frequency of an AC electromagnetic input signal, allowing selective energization of transducers through resonators with matching characteristic frequencies, reducing the need for multiple power paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent power paths are used to selectively address and energize localized transducers, then transducer control capability is improved, but device size and complexity increase
Solution Approach 1:
A single power path is designed to serve multiple transducers along its length by enabling frequency-selective energization. The system uses one main power line that can selectively address different transducers by adjusting the frequency of the electrical signal, making the single power path universal for controlling multiple transducers rather than requiring dedicated power paths for each transducer.
Solution Approach 2:
The system changes the frequency parameter of the electrical signal to selectively energize different transducers. Each transducer has a characteristic resonant frequency, and by varying the input signal frequency along the power path, the system can selectively activate specific transducers without physical switching mechanisms, thereby reducing device complexity while maintaining control capability.
2Measurement precision
If multiple independent power paths are used to selectively address transducers, then transducer addressing precision is improved, but device bulkiness increases
Solution Approach 1:
A single power path is designed to serve multiple transducers along its length by enabling frequency-selective energization. The system uses one main power line that can selectively address different transducers by adjusting the frequency of the electrical signal, making the single power path universal for controlling multiple transducers rather than requiring dedicated power paths for each transducer.
Solution Approach 2:
The system changes the frequency parameter of the electrical signal to selectively energize different transducers. Each transducer has a characteristic resonant frequency, and by varying the input signal frequency along the power path, the system can selectively activate specific transducers without physical switching mechanisms, thereby reducing device complexity while maintaining control capability.
3Device complexity
If frequency-selective resonators are used to control energy flow, then device complexity is reduced, but control mechanism sophistication decreases
Solution Approach 1:
The resonators are designed to automatically respond to matching frequencies without external control mechanisms. When an electrical signal at a transducer's characteristic frequency is applied, the resonator self-selectively energizes that transducer through resonant coupling. This self-service mechanism eliminates the need for complex switching or control circuitry while maintaining precise control capability.
Solution Approach 2:
The system uses electromagnetic resonance (analogous to mechanical vibration principles) where resonators naturally oscillate at their characteristic frequencies when excited by matching signal frequencies. This physical resonance phenomenon provides automatic frequency selection and transducer activation without requiring sophisticated electronic control mechanisms, reducing device complexity while preserving control functionality.
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
Enables efficient and fast control of energy deposition at desired locations along the main-line, minimizing bulkiness and complexity by using frequency-dependent power distribution without additional control mechanisms.
Implementation Method 1
The resonator is configured to resonate at its characteristic AC electromagnetic input signal frequency
Implementation Method 2
The resonator is configured to receive an AC electromagnetic input signal... such as to energize the coupled substrate transducer
Data Source
Figure 1A~1B
Figure 2~3
Figure 4A~4B
AI summary
Localized heating can be provided using fixed-frequency planar transmission line resonators arranged along a main-line, and tuning an electromagnetic input signal frequency applied to the main line to selectively address and energize one or more planar resonators for also addressing and energizing one or more correspondingly located active substrate transducer heat sources for depositing heat in an adjacent active substrate. More generally, adjusting input signal frequency to select one or more planar resonators arranged along a main line can be used to selectively address and energize an electromagnetic-to-heat, an electromagnetic-to-vibration, or other transducer to controllably direct energy toward a desired transducer load.