Related Experiment Video
Updated: Aug 25, 2025
15:25
Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
Published on: February 4, 2018
6.2K
High-Acceleration Vibration Calibration System Based on Phase-Locked Resonance Control
Ran Cheng1, Zhihua Liu2, Guodong Zhai1
1School of Mechanical, Electronic and Information Engineering, China University of Mining and Technology, Beijing 100083, China.
Sensors (Basel, Switzerland)
|October 14, 2022
Summary
Accurate calibration of high-acceleration vibration sensors is crucial. A new phase-locked resonance tracking control method ensures precise calibration by quickly adapting to changing resonance frequencies, improving sensor accuracy and stability.
Area of Science:
- Mechanical Engineering
- Sensor Technology
- Control Systems
Background:
- High-acceleration vibration sensors require accurate calibration for engineering applications.
- Existing calibration systems face challenges due to nonlinear factors affecting resonance frequency with increasing amplitude.
Purpose of the Study:
- To develop a novel phase-locked resonance tracking control method for high-acceleration vibration calibration.
- To enhance the accuracy and stability of resonance control in vibration calibration systems.
Main Methods:
- Utilizing the phase resonance principle to track the resonant frequency of a resonant beam.
- Implementing phase-locking to achieve stable vibration at high amplitudes exceeding 7500 m/s².
Main Results:
- The proposed method enables stable vibration with amplitudes from 500-10,000 m/s² across 80-4000 Hz.
- Achieved an acceleration stability control index of less than 0.5% and resonance tracking time under 0.1 s.
- Outperformed the amplitude iteration amplification method in comparative experiments.
Conclusions:
- The phase-locked resonance tracking control method significantly improves the accuracy and stability of high-acceleration vibration calibration.
- This technique provides a reliable solution for calibrating sensors used in demanding engineering applications.
- The developed system offers a wider operational range and faster tracking compared to conventional methods.
Related Concept Videos
01:24Time and frequency -Domain Interpretation of Phase-lead Control
124
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
124
01:12Instrument Calibration
251
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
251
01:22Phase-lead and Phase-lag Controllers
212
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
212
01:19Concept of Resonance and its Characteristics
5.2K
If a driven oscillator needs to resonate at a specific frequency, then very light damping is required. An example of light damping includes playing piano strings and many other musical instruments. Conversely, to achieve small-amplitude oscillations as in a car's suspension system, heavy damping is required. Heavy damping reduces the amplitude, but the tradeoff is that the system responds at more frequencies. Speed bumps and gravel roads prove that even a car's suspension system is not...
5.2K
01:06Forced Oscillations
6.7K
When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After the transients die out, the oscillator reaches a steady state, where the motion is periodic, and the displacement is determined.
6.7K
01:26Feedback control systems
385
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
385