Resonator Device Enhancing Guided Wave Transducer Output
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Solution Overview
Problem
Conventional methods for enhancing transducer output and measurement sensitivity are limited to impedance matching and frequency/wavelength matching, and have not effectively increased transducer output beyond these limits.
Innovation Solution
A transducer complex comprising an ultrasonic transducer and a resonator, where the resonator is symmetrically arranged adjacent to the ultrasonic transducer to reduce effective impedance, allowing for increased output and measurement sensitivity through dynamic absorption and wave overlap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If impedance matching and frequency/wavelength matching are used to enhance transducer output, then transducer performance is improved to an output limit, but the output cannot be increased beyond this limit
Solution Approach 1:
The patent applies mechanical vibration principles by using a resonator that vibrates at a specific resonant frequency to amplify ultrasonic waves. The resonator is tuned to resonate at the same frequency as the ultrasonic transducer, creating constructive interference and significantly increasing the output amplitude beyond what impedance matching alone can achieve.
Solution Approach 2:
The patent changes the physical parameters of the system by introducing a resonator with specific dimensional parameters (length, width, thickness) and material properties that determine its resonant frequency. By adjusting these parameters, the system can be optimized to achieve maximum output amplification at desired frequencies, overcoming the output limits of conventional impedance matching.
2Power
If multiple transducers are arranged according to specific frequency or wavelength relationships to achieve constructive superposition, then output is increased, but the device complexity and arrangement requirements increase
Solution Approach 1:
The patent merges the functions of multiple transducers into a single transducer-resonator system. Instead of using multiple transducers arranged in specific patterns, the invention combines one ultrasonic transducer with a resonator that performs the wave amplification function, simplifying the device structure while achieving the same constructive superposition effect.
Solution Approach 2:
The resonator acts as an intermediary between the ultrasonic transducer and the medium being processed. It receives energy from the transducer and amplifies the ultrasonic waves through resonance, serving as a mediator that increases output without requiring multiple transducers or complex arrangements.
3Measurement precision
If impedance matching is used to maximize transducer output, then measurement sensitivity is improved, but the fundamental impedance of the transducer remains unchanged
Solution Approach 1:
The resonator utilizes mechanical vibration at its resonant frequency to amplify the ultrasonic waves generated by the transducer. This resonance effect increases both the output power and the measurement sensitivity simultaneously, as the amplified waves produce stronger signals that are easier to detect and measure with higher precision.
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 transducer complex achieves enhanced output and measurement sensitivity by partially reflecting ultrasonic waves within a certain frequency band, leading to improved performance beyond conventional limits.
Implementation Method 1
the resonator partially reflects the ultrasonic waves within a certain frequency band of the ultrasonic waves due to a dynamic absorbing and the waves overlap one another in the transducer complex
Implementation Method 2
the resonator partially reflects the ultrasonic waves within a certain frequency band of the ultrasonic waves
Implementation Method 3
the resonator being symmetrically arranged in parallel on the outside of the ultrasonic transducer to be adjacent to the ultrasonic transducer
Data Source
AI summary
A transducer complex includes a resonator for enhancing an output and a measurement sensitivity of a guided wave transducer. The transducer complex includes: an ultrasonic transducer attached onto a surface or inserted into an object, the ultrasonic transducer having a longer length in parallel with the surface of the object than a length in a direction perpendicular to the surface of the object and the ultrasonic transducer receiving electric power from an external power source to generate ultrasonic waves or receiving ultrasonic waves from outside to generate electricity; and the resonator attached to the object or the ultrasonic transducer or inserted into the object, the resonator being symmetrically arranged in parallel on the outside of the ultrasonic transducer to be adjacent to the ultrasonic transducer.