Accelerometer-Based Gyroscope Drift Compensation Approach in a Dual-Axial Stabilization Platform

An accelerometer-based gyro drift compensation approach in a dual-axial stabilization platform is introduced in this paper. The stabilization platform consists of platform framework, drive motor, gyro and accelerometer module and contorl board. Gyro is an angular rate detecting element to achieve angular rate and rotation angle of the dynamic platform system. However, the platform system has an unstable factor because of the drift of gyro. The main contribution of this paper is to implement a convenient gyro drift compensation approach by using the accelerometer. In contrast to a kalman filtering method, this approach is simpler and practical due to the high-precision characteristic of the accelerometer. Data filtering algorithm and limit of threshold setting of total acceleration values are applied in this approach. The validity and feasibility of the proposed approach are evaluated by four tests under various conditions.

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Use of Euler parameters for the evaluation of ATD head trajectory from angular rate sensor and accelerometer data in aircraft seat certification testing

International Journal of Crashworthiness ◽

10.1080/13588265.2013.766404 ◽

2013 ◽

Vol 18 (2) ◽

pp. 174-182 ◽

Cited By ~ 7

Author(s):

Robert D. Huculak ◽

Hamid M. Lankarani

Keyword(s):

Angular Rate ◽

Accelerometer Data ◽

Angular Rate Sensor ◽

Euler Parameters ◽

Certification Testing ◽

Rate Sensor

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ARMA-AKF Model of MEMS Gyro Rotation Data Random Drift Compensation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.321-324.549 ◽

2013 ◽

Vol 321-324 ◽

pp. 549-552 ◽

Cited By ~ 3

Author(s):

Wei Peng Su ◽

Yong Sheng Hao ◽

Qi Chang Li

Keyword(s):

Angular Rate ◽

External Disturbance ◽

Arma Model ◽

Zero Point ◽

Attitude Measurement ◽

Adaptive Kalman Filter ◽

Actual System ◽

Random Drift ◽

Drift Compensation

Application of MEMS angular rate gyro attitude when monitoring for long-term, zero-point drift and random error in cumulative points after long-term monitoring errors can significantly increase the measurement error. Using ARMA model of MEMS gyros random drift modeling and error compensation method using Adaptive Kalman Filter, which increases gyro attitude measurement of long-term reliability Last experiment. The method in accordance with the principle of time series analysis, integration of observations and estimates of actual system so that it can reflect the influence of external disturbance and noise on the system. It can also reflect the influence of system disturbance on actual system performance improves estimation precision.

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Attitude Measurement and Optimization for Horizontal Directional Drilling Based on MARG Sensor

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.616-618.455 ◽

2012 ◽

Vol 616-618 ◽

pp. 455-460 ◽

Cited By ~ 1

Author(s):

Yi Su ◽

Yang Liu ◽

Xiao Kun Li ◽

Xin Qi

Keyword(s):

Measurement Accuracy ◽

Angular Rate ◽

Attitude Measurement ◽

Directional Drilling ◽

Horizontal Directional Drilling ◽

Earth’S Gravity Field ◽

Complementary Filter ◽

The Stability ◽

Improve Attitude ◽

Gyro Drift

Attitude measurement of the drill bit is the key for horizontal directional drilling, which determines the final positioning accuracy. As for disadvantages of existing algorithms, a method is proposed to get the azimuth, the inclination, and the tool face angle based on gyros. In order to improve attitude measurement accuracy, a quaternion-based attitude complementary filter algorithm is adopted. The accelerometer and magnetometer are used to measure the components of the earth’s gravity field and magnetic field to compensate for gyro drift errors over time, while the gyro ensures the stability of the drill with dynamic acceleration and enhances the robustness of the system. Detailed analysis and simulation results are presented. Results show that the quaternion-based attitude complementary filter algorithm using multiple MARG (Magnetic, Angular Rate, Gravity) sensors can effectively reduce the gyro drift errors and make the attitude measurement error less than +/-0.3 degree.

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MEMS gyro drift compensation using multiple rate measurements derived from a single resonator

2018 IEEE/ION Position, Location and Navigation Symposium (PLANS) ◽

10.1109/plans.2018.8373393 ◽

2018 ◽

Cited By ~ 2

Author(s):

Howard H. Ge ◽

Amir H. Behbahani ◽

Robert T. M'Closkey

Keyword(s):

Drift Compensation ◽

Gyro Drift

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Research on Vibration Angle of Six Degree-of-Freedom

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.226-228.440 ◽

2012 ◽

Vol 226-228 ◽

pp. 440-443

Author(s):

Chun Zhi Li ◽

Ying Chen ◽

Qing Lin Liu

Keyword(s):

Measurement Accuracy ◽

Fiber Optic ◽

Rotation Angle ◽

Angular Rate ◽

Testing System ◽

Fiber Optic Gyroscope ◽

Practical Application ◽

Accuracy Requirement ◽

Testing Method ◽

Six Degree Of Freedom

Based on fiber optic gyroscope technique new method of rotation angle testing in three-axis vibration is proposed in this paper, and the theory of fiber optic gyroscope is introduced as well. According to the measurement accuracy requirement, the angle testing system of FOG is designed by analyzing the environment of three-axis vibration. It was applied in experimental investigation of rotation angle in three-axis vibration with the FOG testing system and the real-time angular rate signal was processed by frequency analysis. The results of practical application show that it is feasibility and validity of angle testing method by means of FOG technique.

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Structure and migration of planar defects in crystals observed in atomic scale

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100108568 ◽

1978 ◽

Vol 36 (1) ◽

pp. 284-285 ◽

Cited By ~ 1

Author(s):

H. Hashimoto ◽

Y. Sugimoto ◽

Y. Takai ◽

H. Endoh

Keyword(s):

Electron Microscope ◽

Rotation Angle ◽

Crystal Surface ◽

Electron Gun ◽

Atomic Scale ◽

Present Observation ◽

Twist Boundary ◽

Optical Magnification ◽

Zinc Crystal ◽

And Migration

As was demonstrated by the present authors that atomic structure of simple crystal can be photographed by the conventional 100 kV electron microscope adjusted at “aberration free focus (AFF)” condition. In order to operate the microscope at AFF condition effectively, highly stabilized electron beams with small energy spread and small beam divergence are necessary. In the present observation, a 120 kV electron microscope with LaB6 electron gun was used. The most of the images were taken with the direct electron optical magnification of 1.3 million times and then magnified photographically.1. Twist boundary of ZnSFig. 1 is the image of wurtzite single crystal with twist boundary grown on the surface of zinc crystal by the reaction of sulphur vapour of 1540 Torr at 500°C. Crystal surface is parallel to (00.1) plane and electron beam is incident along the axis normal to the crystal surface. In the twist boundary there is a dislocation net work between two perfect crystals with a certain rotation angle.

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