Results 21 to 30 of about 1,468,079 (289)

GPS - A POINTING AID FOR THEODOLITES, LASER TRACKERS AND THREAT EMITTERS

open access: yes, 1990
International Telemetering Conference Proceedings / October 29-November 02, 1990 / Riviera Hotel and Convention Center, Las Vegas, NevadaThe GPS equipment developed in the tri-service GPS range applications program is now available for use. One promising
Wechel, Robert Van
core   +5 more sources

A distance-constrained adjustment method for dynamic measurement using a laser tracker network and its accuracy evaluation [PDF]

open access: yesAIP Advances
The laser tracker plays an important role in large-scale, high-accuracy measurement fields due to its exceptional accuracy and strong dynamic performance.
Yixin Ma   +8 more
doaj   +1 more source

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

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

open access: yes, 2012
In laser cutting of thick steel sheets, quality difference is observed between cut surfaces obtained with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro   +3 more
core   +1 more source

Modeling and Parameter Identification of a 3D Measurement System Based on Redundant Laser Range Sensors for Industrial Robots

open access: yesSensors, 2023
The low absolute positioning accuracy of industrial robots is one of the bottlenecks preventing industrial robots from precision applications. Kinematic calibration is the main way to improve the absolute positioning accuracy of industrial robots, which ...
Guanbin Gao   +4 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   +3 more sources

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

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

Application of multi-path laser in magnet pre-collimation unit of high energy photon radiation source

open access: yesHe jishu, 2021
BackgroundThe main body of the high energy photon source (HEPS) storage ring contains 288 pre-collimating units. Due to the smaller size of the magnets in the cells, the positioning accuracy of magnets is required to be 3~5 times higher than that in ...
ZHANG Zebin   +14 more
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

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