A Combined Gravity Compensation Method for INS Using the Simplified Gravity Model and Gravity Database [PDF]
Sensors, 2018 In recent decades, gravity compensation has become an important way to reduce the position error of an inertial navigation system (INS), especially for a high-precision INS, because of the extensive application of high precision inertial sensors (accelerometers and gyros).
Gongliu Yang, Zeyang Wen
exaly +5 more sources
Effects of Local Gravity Compensation on Motor Control During Altered Environmental Gravity [PDF]
Frontiers in Neural Circuits, 2021 Our sensorimotor control is well adapted to normogravity environment encountered on Earth and any change in gravity significantly disturbs our movement.
Tjasa Kunavar +10 more
doaj +2 more sources
A Novel Gravity Compensation Method for High Precision Free-INS Based on “Extreme Learning Machine” [PDF]
Sensors, 2016 In recent years, with the emergency of high precision inertial sensors (accelerometers and gyros), gravity compensation has become a major source influencing the navigation accuracy in inertial navigation systems (INS), especially for high-precision INS.
Xiao Zhou +3 more
doaj +2 more sources
Assessment of Motor Control during Three-Dimensional Movements Tracking with Position-Varying Gravity Compensation [PDF]
Frontiers in Neuroscience, 2017 Active movements are important in the rehabilitation training for patients with neurological motor disorders, while weight of upper limb impedes movements due to muscles weakness.
Yao Huang +7 more
doaj +2 more sources
Partial gravity compensation of a surgical robot [PDF]
International Journal of Advanced Robotic Systems, 2021 Surgical robots are safety-critical devices that require multiple domains of safety features. This article focuses on the passive gravity compensation design optimization of a surgical robot.
Omar W Maaroof +2 more
doaj +3 more sources
Sensors, 2018 Compensation of gravity disturbance can improve the precision of inertial navigation, but the effect of compensation will decrease due to the accelerometer bias, and estimation of the accelerometer bias is a crucial issue in gravity disturbance ...
Junbo Tie +5 more
doaj +3 more sources
Design of a wearable shoulder exoskeleton robot with dual-purpose gravity compensation and a compliant misalignment compensation mechanism [PDF]
Wearable TechnologiesThis paper presents the design and validation of a wearable shoulder exoskeleton robot intended to serve as a platform for assistive controllers that can mitigate the risk of musculoskeletal disorders seen in workers.
John Atkins +2 more
doaj +2 more sources
Active Suppression of Differential Light Shift Drift in an Atom Gravimeter [PDF]
SensorsDifferential light shift (DLS) is an important error term that limits the atom interferometer’s measurement precision, especially for the case of the electro-optic modulator (EOM)-based scheme, where multiple laser sidebands exist, and their ratios are ...
Wei-Hao Xu +11 more
doaj +2 more sources
A vibration compensation approach for shipborne atomic gravimeter based on particle swarm optimization [PDF]
Scientific ReportsThe atomic gravimeter offers high precision, no drift, and excellent long-term stability, making it suitable for high-precision marine gravity measurements.
Zhong-kun Qiao +9 more
doaj +2 more sources
An Accurate Gravity Disturbance Compensation Method Based on Spherical Harmonic Model and Multi-Sensor Fusion [PDF]
Hangkong bingqi, 2023 With the improvement of the accuracy requirements of high-precision long endurance inertial navigation system, the gravity disturbance has become the main error source of inertial navigation system.Is the key factor to improve the navigation accuracy ...
Liu Yuxin, Wang Xinlong, Wang Xun, Gao Wenning, Hu Xiaodong
doaj +1 more source