Results 1 to 10 of about 1,876 (260)

Computational Modeling and Simulation to Increase Laser Shooting Accuracy of Autonomous LEO Trackers

open access: yesPhotonics, 2021
In this paper, we introduce a computational procedure that enables autonomous LEO laser trackers endowed with INSs to increase the current accuracy when shooting at middle distant medium-size LEO debris targets.
Jose M. Gambi   +3 more
doaj   +3 more sources

Programming of Industrial Robots Using a Laser Tracker

open access: yesSensors, 2022
This paper presents the use of a laser tracker for programming paths of industrial robots. The idea of operation, application, and the offered accuracy of the laser trackers are discussed. Then, the developed method of using a tracker for determining the
Dariusz Szybicki   +3 more
doaj   +3 more sources

Design and Error Calibration of a Machine Vision-Based Laser 2D Tracking System [PDF]

open access: yesSensors
A laser tracker is an essential tool in the field of precise geometric measurement. Its fundamental operating idea is a dual-axis rotating device that propels the laser beam to continuously align and measure the attitude of a collaborating target.
Dabao Lao, Xiaojian Wang, Tianqi Chen
doaj   +2 more sources

Flatness measurement of large flat with two-station laser trackers

open access: yesInternational Journal of Optomechatronics, 2018
We present a novel method to accurately measure the flatness of a large flat. The method can be seen as a task-specific error correction of the laser tracker. Laser trackers are positioned at two specific measuring stations and measure the coordinates of
Jie Li, Jie Yang, Shibin Wu, Xuedong Cao
doaj   +2 more sources

Potential of a laser pointer contact lens to improve the reliability of video-based eye-trackers in indoor and outdoor conditions [PDF]

open access: yesJournal of Eye Movement Research
Many video-based eye trackers rely on detecting and tracking ocular features, a task that can be negatively affected by a number of individual or environmental factors.
François-Maël Robert   +3 more
doaj   +2 more sources

Laser Tracker and Terrestrial Laser Scanner Range Error Evaluation by Stitching

open access: yesSensors
Laser trackers (LTs) are dimensional measurement instruments commonly employed in the manufacture and assembly of large structures. Terrestrial laser scanners (TLSs) are a related class of dimensional measurement instruments more commonly employed in ...
Bala Muralikrishnan   +5 more
doaj   +3 more sources

Large-Scale Measurement Layout Optimization Method Based on Laser Multilateration

open access: yesMachines, 2022
Laser multilateration is a measurement method based on the distance intersection of multiple laser trackers which has been widely used in large-scale measurements. However, the layout of laser trackers has a great impact on the final measurement accuracy.
Ying Sheng   +4 more
doaj   +1 more source

Improved Acoustic Thermometry for Long-Distance Temperature Measurements

open access: yesSensors, 2023
Accurate measurements of long distances (in the order of tens of meters or more) are necessary in manufacturing processes of large structures, as, for example, in the aerospace industry.
Marco Pisani   +2 more
doaj   +1 more source

Evaluation of the Large-Length Indoor Standard Installation Based on Single Point Scanning

open access: yesApplied Sciences, 2021
The large length indoor standard installation (LLISI) serves as a standard traceability system for large-scale measuring devices, and hence evaluating the accuracy of its measurements during motion is of great importance.
Chang’an Hu   +5 more
doaj   +1 more source

ASME B89.4.19 standard for laser tracker verification – experiences and optimisations [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2012
Laser trackers are becoming the tool of choice for large volume dimensional metrology applications such as the measurement of aerospace assemblies, power plant structures, civil engineering structures and terrestrial transportation ...
Nasr K.M.   +3 more
doaj   +1 more source

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