Results 321 to 330 of about 7,723,935 (379)

Positioning Accuracy Reliability of Industrial Robots Through Probability and Evidence Theories

, 2020
The positioning accuracy of industrial robots has an important influence on the stability and accuracy of robotic motion, which is one of the important indexes to measure the performance of robots.
Dequan Zhang, Peng Zhouyuan, Guosong Ning, Xu-hao Han   +3 more
semanticscholar   +1 more source

Position Accuracy of Drilled Holes

CIRP Annals, 1991
When selecting hole-making sequences, the positional accuracy mainly is determined during the first drilling operation. This dissertation consists of three papers which consider the influence of various factors on hole positional accuracy when drilling in inclined workpieces using high-speed steel twist drills with conventional point geometry.
J. Kaminski, R. Crafoord, N. Mårtensson
openaire   +1 more source

Positioning accuracy degradation and lifetime prediction of the ball screw considering time-varying working conditions and feed modes

, 2020
Ball screw mechanisms (BSMs) are used as accuracy transmission components in a wide range of industries and are characterized by their high accuracy. More specifically, the positioning accuracy of BSM has a significant effect on the accuracy of machine ...
Qiang Cheng, Baobao Qi, Zhifeng Liu, Cong-bin Yang, Jigui Zheng   +4 more
semanticscholar   +1 more source

Kalman-Filter-Based Integration of IMU and UWB for High-Accuracy Indoor Positioning and Navigation

IEEE Internet of Things Journal, 2020
The emerging Internet of Things (IoT) applications, such as smart manufacturing and smart home, lead to a huge demand on the provisioning of low-cost and high-accuracy positioning and navigation solutions.
Daquan Feng, Chunqi Wang, Chunlong He, Y. Zhuang, X. Xia   +4 more
semanticscholar   +1 more source

Positioning accuracy assessment of a commercial RTK UAS

Defense + Commercial Sensing, 2020
Though unmanned aircraft systems (UAS) are widely used in agriculture, their current positioning accuracy in a radius of 0.5 to 2 meters is still too low to pinpoint a crop row or to precisely overlay temporal multi-source field maps together without a ...
Biquan Zhao, Jiating Li, Lin Wang, Yeyin Shi   +3 more
semanticscholar   +1 more source

Positional accuracy in spatial databases

Computers, Environment and Urban Systems, 1993
Abstract The quality of a geometrical database, especially in urban areas with high real property prices, is an important issue whenever the introduction of an information system is under discussion. The desired high quality usually conflicts with the budget available.
Wilhelm Caspary, Robert Scheuring
openaire   +1 more source

LSTM-based short-term ionospheric TEC forecast model and positioning accuracy analysis

GPS Solutions, 2023
Ting Xie, Zhiqiang Dai, Xiangwei Zhu, Biyan Chen, Chengxin Ran   +4 more
semanticscholar   +1 more source

Laser focus positioning method with submicrometer accuracy

Applied Optics, 2013
Accurate positioning of a sample is one of the primary challenges in laser micromanufacturing. There are a number of methods that allow detection of the surface position; however, only a few of them use the beam of the processing laser as a basis for the measurement.
Ilya, Alexeev, Johannes, Strauss, Andreas, Gröschl, Kristian, Cvecek, Michael, Schmidt   +4 more
openaire   +2 more sources

Positional Accuracy of Two Methods of Geocoding

Epidemiology, 2005
Geocoding is often used in epidemiologic studies to map residences with geographic information systems (GIS). The accuracy of the method is usually not determined.We collected global positioning system (GPS) measurements at homes in a case-control study of non-Hodgkin lymphoma in Iowa. We geocoded the addresses by 2 methods: (1) in-house, using ArcView
Mary H, Ward, John R, Nuckols, James, Giglierano, Matthew R, Bonner, Calvin, Wolter, Matthew, Airola, Wende, Mix, Joanne S, Colt, Patricia, Hartge   +8 more
openaire   +2 more sources

Photon caliper to achieve submillimeter positioning accuracy

Physics in Medicine & Biology, 2017
The purpose of this study was to demonstrate the feasibility of using a commercial two-dimensional (2D) detector array with an inherent detector spacing of 5 mm to achieve submillimeter accuracy in localizing the radiation isocenter. This was accomplished by delivering the Vernier 'dose' caliper to a 2D detector array where the nominal scale was the 2D
Kyle J Gallagher, Jennifer Wong, Junan Zhang   +2 more
openaire   +2 more sources