Ferrite Alignment Key for Wireless Sensor Signal Detection
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Solution Overview
Problem
Existing wireless resonant sensors face challenges in achieving increased sensitivity and reproducibility, particularly in multiparameter measurement applications, due to limitations in signal strength and alignment variability.
Innovation Solution
The integration of a ferrite alignment key within the pick-up coil assembly of wireless resonant sensors, which aligns reproducibly with the sensor, enhancing signal detection by concentrating the electromagnetic field and reducing alignment errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ferrite materials are placed inside the coils of a pick-up coil assembly to increase signal strength, then signal strength is improved, but device complexity increases
Solution Approach 1:
The ferrite alignment key is nested within the pick-up coil assembly, with the ferrite material positioned inside the coil structure. This nesting approach allows the ferrite to enhance signal strength while being integrated into the existing coil geometry, minimizing additional complexity
Solution Approach 2:
The ferrite alignment key serves as an intermediary element between the pick-up coil and the wireless resonant sensor. It mediates the electromagnetic field interaction, concentrating and directing the field to improve signal strength without requiring complex additional components
2Measurement precision
If alignment variability is reduced to improve measurement precision, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The ferrite alignment key introduces an asymmetric geometric feature that creates a unique alignment position between the pick-up coil and sensor. This asymmetric key-fit mechanism ensures reproducible alignment without requiring complex alignment systems, achieving precise measurement positioning through simple geometric constraint
Solution Approach 2:
The ferrite alignment key performs the alignment action preliminarily, establishing the correct geometric relationship between components before measurement begins. This pre-alignment mechanism eliminates the need for complex real-time alignment adjustments during operation
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 configuration improves signal-to-noise ratio, increases signal magnitude, and enables more accurate and reproducible multiparameter measurements, allowing for smaller, lower-power sensors with extended sensing ranges.
Implementation Method 1
enhancing signal detection by concentrating the electromagnetic field
Implementation Method 2
ferrite materials have been placed inside the coils of a pick-up coil assembly to increase signal strength
Data Source
AI summary
The present invention related to devices and methods for using ferrite alignment keys in wireless remote sensor assemblies. In one aspect, the invention provides wireless resonant sensor assemblies comprising a pick-up coil, a ferrite alignment key positioned in and extending from the pick-up coil, and wireless resonant sensor having a receiving element wherein the pick-up coil and the wireless resonant sensor align upon insertion of the ferrite alignment key into the receiving element. The ferrite alignment key may also be part of a resonant sensor such that insertion of a pick-up coil into a receiving element of the alignment key results in a configuration where the alignment key is positioned in and extended from the pick-up coil. Methods of measuring one or more parameters of a monitoring system are also provided. The insertion of the ferrite alignment key aligns the pick-up coil and wireless resonant sensor thereby increasing sensing of the wireless resonant sensor by the pick-up coil.