Results 21 to 30 of about 1,876 (260)

Multi-position control of movements of large-sized structural elements during static loading using a laser tracker

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2023
One of the most important tasks in the manufacturing of aerospace products is the control of their geometric parameters at various stages of production and assessment of their compliance with the requirements of design documentation.
N. A. Sazonnikova, R V. Uklein
doaj   +1 more source

Laser Tracker-Based on-the-Fly Machine Tool Calibration without Real-Time Synchronization

open access: yesJournal of Manufacturing and Materials Processing, 2023
Consistent high volumetric performance of machine tools is an essential requirement for high-quality machining. Periodic machine tool calibration ensures said performance and allows for timely corrective actions preventing scrap or rework.
Mark P. Sanders   +5 more
doaj   +1 more source

Laser tracker adaptive tuning.

open access: yesCoRR, 2020
The goal of the automatic tuning algorithm is to compute suitable values for the controller gains, including the proportional (Kp), integral (Ki), and derivative (Kd), as well as the tachometer feedback gain (Kv).
openaire   +4 more sources

ATControl: Controlling Software for Leica AT40x Laser Trackers

open access: yesGeoinformatics FCE CTU, 2015
The paper describes a software called ATControl which is based on the Matworks Matlab high-level programming language. This software is under constant development by the author in order to collect geospatial data by measuring with the absolute laser ...
Filip Dvořáček
doaj   +1 more source

Optimization Method for Solution Model of Laser Tracker Multilateration Measurement

open access: yesMeasurement Science Review, 2016
Multilateration measurement using laser trackers suffers from a cumbersome solution method for high-precision measurements. Errors are induced by the self-calibration routines of the laser tracker software.
Chen Hongfang   +4 more
doaj   +1 more source

Evaluation and Experiment of Flight Parameter Quality of the Plant Protection UAV Based on Laser Tracker

open access: yesAgriculture, 2021
Research shows that the accurate acquisition of flight parameters of the plant protection UAV and accurate evaluation of flight parameter quality have great significance for improving the effect and precision of spraying.
Xin Huang   +7 more
doaj   +1 more source

METROLOGY ENABLED REFLECTION TRANSFORMATION IMAGING TO RECONSTRUCT LOCAL DETAIL IN MANUFACTURED SURFACES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Understanding the performance of large high performance manufactured structures can require highly accurate dimensional measurement across large volumes with the often conflicting capability to record critical parts of the structure in fine detail ...
S. Robson, L. MacDonald, B. Sargeant
doaj   +1 more source

Configuration Analysis of the ERS Points in Large-Volume Metrology System

open access: yesSensors, 2015
In aircraft assembly, multiple laser trackers are used simultaneously to measure large-scale aircraft components. To combine the independent measurements, the transformation matrices between the laser trackers’ coordinate systems and the assembly ...
Zhangjun Jin   +3 more
doaj   +1 more source

A Novel Camera-to-Robot Calibration Method for Vision-Based Floor Measurements [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
A novel hand–eye calibration method for ground-observing mobile robots is proposed. While cameras on mobile robots are common, they are rarely used for ground-observing measurement tasks. Laser trackers are increasingly used in robotics for precise
J. A. Rudolph, D. Haitz, M. Ulrich
doaj   +1 more source

A Visual Feedback Supported Intelligent Assistive Technique for Amyotrophic Lateral Sclerosis Patients

open access: yesAdvanced Intelligent Systems, 2022
Among diverse intelligent assistive systems developed for amyotrophic lateral sclerosis (ALS) patients, headwear eye tracking based ones trigger broad interests due to their merits such as noninvasive, cost effective, and high operation freedom. However,
Zihao Wang   +6 more
doaj   +1 more source

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