一种在运行过程中的自动解调阶段错误补偿方法,用于在全温度范围内的MEMS陀螺仪.
Jianpeng Wang1,2, Gongliu Yang1,3, Yi Zhou4
1School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.
Micromachines
|July 27, 2024
概括
本研究引入了一种在运行过程中的自动补偿方法,以修复MEMS陀螺仪中的解调阶段错误. 该技术在广泛的温度范围内显著减少偏差不稳定性,改善陀螺仪的性能.
科学领域:
- * 机械工程 机械工程
- * 电气工程 电气工程
- * 传感器技术 * 传感器技术
背景情况:
- * 微电机系统 (MEMS) 陀螺仪中的解调相位错误与速率输出的正方位错误相结合,降低性能.
- * 这一错误是限制MEMS陀螺仪应用的准确性和可靠性的关键因素.
研究的目的:
- *为MEMS陀螺仪提出并验证一个在运行过程中的自动解调相位错误补偿方法.
- *通过减轻相位误差效应来提高MEMS陀螺仪的性能和精度.
主要方法:
- *使用方波角速率输入的自动识别算法来检测解调阶段错误.
- * 通过测量 -40~60°C温度范围内的相位误差,在10°C间隔内进行运行补偿.
- * 通过使用第三阶多项式来调整温度依赖的相位误差,并根据传感器温度读数进行补偿.
主要成果:
- *消除了温度歇斯底里作用对陀螺仪的零速率输出 (ZRO).
- * 在室温 (25°C) 降低偏移不稳定性 (BI) 的四到八倍至0.1°/h.
- *在全温度环境 (-40~60°C) 中,BI 降低了三到四倍,达到每小时0.1°C.
结论:
- * 拟议的在运行过程中的自动补偿方法有效地减轻了MEMS陀螺仪的解调阶段错误.
- *该方法显著提高了陀螺仪的性能,特别是偏差不稳定性,在广泛的操作温度范围内.
- *这种进步有助于在苛刻的环境中实现更可靠,更准确的MEMS陀螺仪系统.
更多相关视频
09:01Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
Published on: April 4, 2017
8.6K
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
NMR Spectrometers: Resolution and Error Correction
681
When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
681
Biasing of Metal-Semiconductor Junctions
235
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
235
Distance Corrections
27
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
27
Biasing of FET
247
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
247
Errors in Global Positioning System
41
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
41
