基于过和PID补偿的MEMS压力传感器反干扰系统的设计
Baojie Li1, Guiling Sun1, Haicheng Zhang1
1College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China.
Sensors (Basel, Switzerland)
|September 14, 2024
概括
本研究介绍了一种新的系统,通过整合温度控制和数据处理来提高压力传感器的准确性和稳定性. 该系统显著减少错误和热漂移,使可靠的远程压力监控成为可能.
科学领域:
- 传感器技术 传感器技术
- 仪器仪表和测量仪器的使用
- 控制系统 控制系统
背景情况:
- 传统的压力传感器因温度偏移和不良静态稳定性而受到影响,限制了其工业应用.
- 越来越多的需求需要更准确,更稳定的压力测量解决方案.
研究的目的:
- 设计和验证一种用于准确和稳定的压力传感的新型系统.
- 为了弥补压力传感器中的温度漂移和静态特征错误.
- 为了实现可靠的远程数据传输,用于压力测量应用.
主要方法:
- 温度测量,调节,信号处理和通信电路的集成.
- 实施原始数据的过算法和用于错误补偿的数据拟合操作.
- 应用改进的PID恒温控制算法以减轻温度漂移.
主要成果:
- 在50°C时,非线性误差从1.82%降至0.24%.
- 歇斯底里斯误差从1.23%降低到0.046%.
- 可重复性误差从3.79%降低到0.89%,热灵敏度和零漂移系数分别降低了74.67%和66.24%.
- 无线通信范围扩展到1公里.
结论:
- 开发的系统在压力测量方面表现出高精度和稳定性.
- 补偿策略有效地解决了温度偏移和静态特征错误.
- 该系统非常适合要求远程监控的工业压力测量应用.
更多相关视频
10:28Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique
Published on: March 24, 2023
1.1K
11:44Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators
Published on: August 15, 2014
10.3K
相关概念视频
PI Controller: Design
222
Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
222
PID Controller
110
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
110
Time and frequency -Domain Interpretation of PI Control
113
Proportional-Integral (PI) controllers are essential in many control systems to improve stability and performance. They are commonly used in everyday devices like thermostats to enhance system damping and reduce steady-state error. When the zero in the controller's transfer function is optimally placed, the system benefits significantly in terms of stability and accuracy.
Acting as a low-pass filter, the PI controller slows the system's response and extends settling times. This requires...
Acting as a low-pass filter, the PI controller slows the system's response and extends settling times. This requires...
113
PD Controller: Design
199
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
199
Time-Domain Interpretation of PD Control
85
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
Consider the example of control of motor torque. Initially, a positive...
85
