scholarly journals Study of Systems Error Compensation Methods Based on Molecular-Electronic Transducers of Motion Parameters

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Dmitry L. Zaitsev ◽  
Vadim M. Agafonov ◽  
Iliya A. Evseev
Keyword(s):  
Experimental Study ◽  
Error Compensation ◽  
Angular Motion ◽  
Motion Sensor ◽  
Sensitivity Factor ◽  
Molecular Electronic ◽  
Compensation Methods ◽  
Motion Parameters ◽  
System Errors

The main objective of the paper is to study the system errors of azimuth determination in the dynamic scheme of north finding on the base of the molecular-electronic sensitive angular motion sensor. Introduced theoretical and experimental study of some error compensation methods. Investigated the most significant system inaccuracies of azimuth determination depended on MET sensor g-sensitivity factor and the occurrence of rotation uneven in the system and as a result of tiny angular accelerations which appeared. Methods and algorithms of error reduce are experimentally verified.

Study of the route correction system for the on-board navigation system of an unmanned aerial vehicle on the grounds of radar images of the terrain

2020 ◽  
pp. 129-134
Keyword(s):  
Predictive Model ◽  
Unmanned Aerial Vehicle ◽  
Predictive Models ◽  
Navigation System ◽  
Error Compensation ◽  
Compensation Scheme ◽  
Radar Images ◽  
Aerial Vehicle ◽  
System Errors ◽  
Correction System

The system of route correction of an unmanned aerial vehicle (UAV) is considered. For the route correction the on-board radar complex is used. In conditions of active interference, it is impossible to use radar images for the route correction so it is proposed to use the on-board navigation system with algorithmic correction. An error compensation scheme of the navigation system in the output signal using the algorithm for constructing a predictive model of the system errors is applied. The predictive model is building using the genetic algorithm and the method of group accounting of arguments. The quality comparison of the algorithms for constructing predictive models is carried out using mathematical modeling.

scholarly journals A Non-Delay Error Compensation Method for Dual-Driving Gantry-Type Machine Tool

Processes ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 748
Author(s):  
Qi Liu ◽  
Hong Lu ◽  
Xinbao Zhang ◽  
Yu Qiao ◽  
Qian Cheng ◽  
...  
Keyword(s):  
Machine Tool ◽  
Error Compensation ◽  
Prediction Method ◽  
Compensation Method ◽  
Industrial Robots ◽  
Numerical Control ◽  
Heavy Duty ◽  
Positioning Errors ◽  
Compensation Methods ◽  
Type Machine

The drive at the center of gravity (DCG) principle has been adopted in computer numerical control (CNC) machines and industrial robots that require heavy-duty and quick feeds. Using this principle requires accurate corrections of positioning errors. Conventional error compensation methods may cause vibrations and unstable control performances due to the delay between compensation and motor motion. This paper proposes a new method to reduce the positioning errors of the dual-driving gantry-type machine tool (DDGTMT), namely, a typical DCG-principle-based machine tool. An error prediction method is proposed to characterize errors online. An algorithm is proposed to quickly and accurately compensate the errors of the DDGTMT. Experiment results verify that the non-delay error compensation method proposed in this paper can effectively improve the accuracy of the DDGTMT.

A Thermal Expansion-based Angular Motion Sensor with Detection Limit towards Sub-degree per Second

2021 ◽  
Author(s):  
Huahuang Luo ◽  
Mingzheng Duan ◽  
Hadi Tavakkoli ◽  
Jose Cabot ◽  
Yi-Kuen Lee
Keyword(s):  
Thermal Expansion ◽  
Detection Limit ◽  
Angular Motion ◽  
Motion Sensor

scholarly journals Systematic experimental study of quantum interference effects in anthraquinoid molecular wires

2019 ◽  
Vol 1 (5) ◽  
pp. 2018-2028 ◽  
Author(s):  
Marco Carlotti ◽  
Saurabh Soni ◽  
Xinkai Qiu ◽  
Eric Sauter ◽  
Michael Zharnikov ◽  
...  
Keyword(s):  
Experimental Study ◽  
Structure Function ◽  
Quantum Interference ◽  
Electronic Devices ◽  
Molecular Wires ◽  
Design Principles ◽  
Device Fabrication ◽  
Molecular Properties ◽  
Interference Effects ◽  
Molecular Electronic

In order to translate molecular properties in molecular-electronic devices, it is necessary to create design principles that can be used to achieve better structure–function control oriented toward device fabrication.

Error Analysis of a Novel Resolver-to-Digital Converter

2012 ◽  
Vol 542-543 ◽  
pp. 695-698
Author(s):  
Wen Jing He ◽  
Xiao Wen Xu ◽  
Zhong Ke Shi
Keyword(s):  
Error Analysis ◽  
Error Compensation ◽  
Digital Converter ◽  
Compensation Methods ◽  
Signal Characteristics ◽  
Accuracy And Stability

In this paper, a software-based resolver-to-digital converter using tangent algorithm is proposed. Meanwhile, three main non-ideal signal characteristics which cause the error of the presented resolver-to-digital converter are individually discussed, and the error compensation methods are given. The results show that the proposed strategies effectively improve the accuracy and stability of the system.

Phase error compensation methods for high-accuracy profile measurement

2016 ◽  
Vol 27 (4) ◽  
pp. 045201 ◽  
Author(s):  
Zewei Cai ◽  
Xiaoli Liu ◽  
Xiang Peng ◽  
Zonghua Zhang ◽  
Hao Jiang ◽  
...  
Keyword(s):  
Error Compensation ◽  
Phase Error ◽  
High Accuracy ◽  
Profile Measurement ◽  
Accuracy Profile ◽  
Compensation Methods
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