Resonant Sensor Group Delay Measurement for Fast Frequency Detection
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Solution Overview
Problem
Resonant sensors face challenges in accurately determining resonance frequencies with high sensitivity and efficiency due to the need for increased monitoring time and power consumption in existing methods, particularly when measuring physical quantities like temperature and pressure.
Innovation Solution
The system employs a modulation manager to query resonant sensors with a modulated signal, using a resonance determiner to determine resonance frequencies based on group delay, allowing for high-resolution measurements in reduced time without increased power consumption or components, and adjusts the frequency of the query signal to maintain linearity across a broader range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional resonance frequency measurement methods are used, then measurement accuracy is achieved, but monitoring time and power consumption increase
Solution Approach 1:
The patent changes the measurement parameter from direct resonance frequency detection to group delay measurement. By measuring the group delay of the resonant sensor response and using the relationship between group delay and resonance frequency, the system achieves high measurement accuracy with reduced monitoring time and power consumption.
2Measurement precision
If traditional resonance frequency measurement methods are used, then measurement accuracy is achieved, but power consumption increases
Solution Approach 1:
The patent changes the measurement parameter from direct resonance frequency detection to group delay measurement. By measuring the group delay of the resonant sensor response and using the relationship between group delay and resonance frequency, the system achieves high measurement accuracy with reduced monitoring time and power consumption.
3Measurement precision
If resonant sensors operate at high frequencies, then sensitivity is improved, but linearity range is limited
Solution Approach 1:
The patent changes from direct frequency measurement to group delay measurement, which extends the linear measurement range. The group delay parameter provides a broader linear region that maintains sensor sensitivity while accommodating a wider range of physical quantity variations.
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 enables fast and sensitive detection of resonance frequencies, extending the linearity range of resonant sensors, thereby improving measurement efficiency and reducing the time required for high-resolution measurements while maintaining low power consumption.
Implementation Method 1
Resonant sensors, or more generally resonators, are devices or systems that resonate at specific frequencies or exhibit resonant behavior. Moreover, when these resonant sensors are subjected to an input power, they oscillate. The amplitude of oscillation depends on the frequency of oscillation.
Implementation Method 2
a sensor monitor is utilized... The sensor monitor can measure a shift in resonance frequency of the resonant sensors... determine a resonance frequency of the resonant sensor based on a group delay associated with the resonant sensor
Data Source
AI summary
Methods, apparatus, systems and articles of manufacture are disclosed to measure a resonant sensor based on detection of group delay. An example apparatus includes a modulation manager configured to query the resonant sensor with a modulated signal including a frequency; and a resonance determiner configured to determine a resonance frequency of the resonant sensor based on a group delay associated with the resonant sensor and the frequency.