Results 11 to 20 of about 15,483 (283)

Magnetic Gravity Compensation [PDF]

Microgravity Science and Technology, 2010
Magnetic gravity compensation in fluids is increasingly popular as a means to achieve low-gravity forphysical and life sciences studies. We explain the basics of the magnetic gravity compensation and analyzeits advantages and drawbacks. The main drawback is the spatial heterogeneity of the residual gravity field.We discuss its causes.
Nikolayev, Vadim, Chatain, Denis, Beysens, D., Pichavant, G.   +3 more
openaire   +4 more sources

Study on Gravity Compensation of RCM Mechanism of Slave Manipulator

Jixie chuandong, 2021
In order to improve the positioning accuracy and motion stability of endoscopy surgery robot with remote motion center (RCM) of slave manipulator，the equivalent centroid position of the component is obtained by dynamic equivalence of slave manipulator ...
Baoping Ma, Fan Zhang, Zhaoying Zhang, Xun Zou, Guosheng Zhang   +4 more
doaj   +2 more sources

The Optimal Degree of Gravity Spherical Harmonic Model Calculation for Gravity Disturbance Compensation in Inertial Navigation

MATEC Web of Conferences, 2018
In recent years, the significant improvement of inertial navigation, leaves the gravity disturbance as the important factor which affects the accuracy of inertial navigation.
TIE Junbo, WU Meiping, Cao Juliang, Lian Junxiang, Cai Shaokun, Wang Lin   +5 more
doaj   +3 more sources

Research on the Gravity Disturbance Compensation Terminal for High-Precision Position and Orientation System

Sensors, 2020
The Position and Orientation System (POS) is the core device of high-resolution aerial remote sensing systems, which can obtain the real-time object position and collect target attitude information.
Zhuangsheng Zhu, Hao Tan, Yue Jia, Qifei Xu   +3 more
doaj   +2 more sources

Adaptive sliding mode control with gravity compensation: Application to an upper-limb exoskeleton system [PDF]

MATEC Web of Conferences, 2019
This paper presents a robust control algorithm with gravity compensation in presence of parametric uncertainties. The application deals with an upper limb exoskeleton system, aimed for a rehabilitation application. The treated system is an robot with two
Bembli Sana, Khraief Haddad Nahla, Belghith Safya   +2 more
doaj   +2 more sources

Design and Verification of Gravity Influence Compensation Algorithm on Load End

Journal of Harbin University of Science and Technology, 2018
Aiming at the problem that the measuring results of wrist force sensor can be influenced by load end’s attitude change when mechanical arm moves，this paper proposes a load gravity compensation algorithm for wrist force sensor.
LIU Yan, WU Jun-feng, XIA Ke-rui, MA Chang-you   +3 more
doaj   +2 more sources

Gravity compensation and optimal control of actuated multibody system dynamics [PDF]

IET Control Theory & Applications, 2022
This work investigates the gravity compensation topic, from a control perspective. The gravity could be levelled by a compensating mechanical system or in the control law, such as proportional derivative (PD) plus gravity, sliding mode control, or ...
Saeed Rafee Nekoo, José Ángel Acosta, Anibal Ollero   +2 more
doaj   +2 more sources

Compensation of Horizontal Gravity Disturbances for High Precision Inertial Navigation

Sensors, 2018
Horizontal gravity disturbances are an important factor that affects the accuracy of inertial navigation systems in long-duration ship navigation.
Junbo Tie, Juliang Cao, Meiping Wu, Junxiang Lian, Shaokun Cai, Lin Wang   +5 more
doaj   +2 more sources

An Airborne Gravity Gradient Compensation Method Based on Convolutional and Long Short-Term Memory Neural Networks

Sensors
As gravity exploration technology advances, gravity gradient measurement is becoming an increasingly important method for gravity detection. Airborne gravity gradient measurement is widely used in fields such as resource exploration, mineral detection ...
Shuai Zhou, Changcheng Yang, Yi Cheng, Jian Jiao   +3 more
doaj   +2 more sources

Self-Gradient Compensation of Full-Tensor Airborne Gravity Gradiometer

Sensors, 2019
In the process of airborne gravity gradiometry for the full-tensor airborne gravity gradiometer (FTAGG), the attitude of the carrier and the fuel mass will seriously affect the accuracy of gravity gradiometry.
Xuewu Qian, Yanhua Zhu
doaj   +2 more sources