Results 11 to 20 of about 39,954 (258)

Calibration Method of Accelerometer Based on Rotation Principle Using Double Turntable Centrifuge

Micromachines, 2021
For linear accelerometers, calibration with a precision centrifuge is a key technology, and the input acceleration imposed on the accelerometer should be accurately obtained in the calibration.
Xianshan Dong, Xinlong Huang, Guizhen Du, Qinwen Huang, Yixiong Huang, Yun Huang, Ping Lai   +6 more
doaj   +1 more source

Efficiency Analysis of Herringbone Star Gear Train Transmission with Different Load-Sharing Conditions

Applied Sciences, 2022
A slight improvement in the transmission efficiency of the herringbone star gear train in a GTF has a great impact on the fuel economy of the engine. Here, the influencing factors of gear train efficiency were studied from the perspective of gear train ...
Dong Li, Shuyan Wang, Dongliang Li, Yong Yang   +3 more
doaj   +1 more source

Automatic recognition method of installation errors of metallurgical machinery parts based on neural network

Journal of Intelligent Systems, 2022
The installation error of metallurgical machinery parts is one of the common sources of errors in mechanical equipment. Because the installation error of different parts has different influences on different mechanical equipment, a simple linear formula ...
Cui Hailong, Zhan Bo
doaj   +1 more source

An Installation Angle Error Calibration Method in an Ultra-Short Baseline System Based on a Dual Transponder

Polish Maritime Research, 2023
The installation error of an acoustic transceiver array is one of the important error sources in an ultra-short baseline (USBL) system. In a USBL system with a positioning accuracy of 0.5%, an installation error angle of 1° will lead to a positioning ...
Liu Baoheng, Zhang Xiaochuan, Jia Shuyang, Zou Sichen, Tian Deyan, Da Lianglong   +5 more
doaj   +1 more source

High-Accuracy Decoupling Estimation of the Systematic Coordinate Errors of an INS and Intensified High Dynamic Star Tracker Based on the Constrained Least Squares Method

Sensors, 2017
Navigation accuracy is one of the key performance indicators of an inertial navigation system (INS). Requirements for an accuracy assessment of an INS in a real work environment are exceedingly urgent because of enormous differences between real work and
Jie Jiang, Wenbo Yu, Guangjun Zhang
doaj   +1 more source

An On-Orbit Dynamic Calibration Method for an MHD Micro-Angular Vibration Sensor Using a Laser Interferometer

Sensors, 2019
The magnetohydrodynamic (MHD) micro-angular vibration sensor is a significant component of the MHD Inertial Reference Unit (MIRU) and measures micro-amplitude and wide frequency angular vibration. The MHD micro-angular vibration sensor must be calibrated
Yingjie Wu, Xingfei Li, Fan Liu, Ganmin Xia   +3 more
doaj   +1 more source

A New Self-Calibration and Compensation Method for Installation Errors of Uniaxial Rotation Module Inertial Navigation System

Sensors, 2022
Calibration and compensation techniques are essential to improve the accuracy of the strap-down inertial navigation system. Especially for the new uniaxial rotation module inertial navigation system (URMINS), replacing faulty uniaxial rotation modules ...
Meng Niu, Hongyu Ma, Xinglin Sun, Tiantian Huang, Kaichen Song   +4 more
doaj   +1 more source

Research on IMU Calibration Model Based on Polar Decomposition

Micromachines, 2023
As an important deterministic error of the inertial measurement unit (IMU), the installation error has a serious impact on the navigation accuracy of the strapdown inertial navigation system (SINS).
Guiling Zhao, Maolin Tan, Xu Wang, Weidong Liang, Shuai Gao, Zhijian Chen   +5 more
doaj   +1 more source

Multi-Axis Laser Interferometer Not Affected by Installation Errors Based on Nonlinear Computation

Applied Sciences, 2023
Most multi-axis laser interferometers require accurate installation of the lasers and detectors since the position and orientation installation errors of lasers and detectors bring measurement error to the interferometer.
Tingrui Wen, Jinchun Hu, Yu Zhu, Guojie Hua   +3 more
doaj   +1 more source

Analytical study on meshing performance of helical cylindrical gears with the coupling of tooth flank morphology and installation error

Journal of Advanced Mechanical Design, Systems, and Manufacturing
This paper investigates the coupling mechanism between installation errors of helical cylindrical gears and tooth flank modification methods on meshing performance.
Chengcheng LIANG, Yihao ZHANG, Longhua LIU, Ruijun LIU   +3 more
doaj   +1 more source