ASME B89.4.19 standard for laser tracker verification – experiences and optimisations [PDF]
International 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
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Laser Tracker and Terrestrial Laser Scanner Range Error Evaluation by Stitching
SensorsLaser 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
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ASME B89.4.19 Performance Evaluation Tests and Geometric Misalignments in Laser Trackers. [PDF]
J Res Natl Inst Stand Technol, 2009 Small and unintended offsets, tilts, and eccentricity of the mechanical and optical components in laser trackers introduce systematic errors in the measured spherical coordinates (angles and range readings) and possibly in the calculated lengths of ...
Muralikrishnan B +5 more
europepmc +3 more sources
Uporaba AIFM-tehnologije za dimenzijsko kontrolo turbinskih delov ( = Use of AIFM technology in dymensional control of turbin parts) [PDF]
Geodetski Vestnik, 2014 Conventional measuring methods in a dimensional control of turbine parts are demanding and time-consuming, their accuracy depends on experiences of measuring team.
Iztok Slatinšek, Dušan Kogoj
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REGISTRATION AND FEATURE EXTRACTION FROM TERRESTRIAL LASER SCANNER POINT CLOUDS FOR AEROSPACE MANUFACTURING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Aircraft wing manufacture is becoming increasingly digitalised. For example, it is becoming possible to produce on-line digital representations of individual structural elements, components and tools as they are deployed during assembly processes.
K. Pexman, S. Robson
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Highly Efficient Four-Rod Pumping Approach for the Most Stable Solar Laser Emission
Micromachines, 2022 We report a significant numerical improvement in multi-rod laser efficiency, with an enhanced solar tracking error compensation capacity for a heliostat-parabolic system.
Miguel Catela +6 more
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Dissociating neural learning signals in human sign- and goal-trackers [PDF]
, 2020 Individuals differ in how they learn from experience. In Pavlovian conditioning models, where cues predict reinforcer delivery at a different goal location, some animals-called sign-trackers-come to approach the cue, whereas others, called goal-trackers,
Dayan, P. +41 more
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Experimental Study on Collimation Characteristics of an ECRH System with a 28GHz/50kW Gyrotron [PDF]
E3S Web of Conferences, 2020 In this paper, the collimation characteristics of an electron cyclotron resonance heating (ECRH) system with a 28GHz/50kW gyrotron in EXL-50 are studied experimentally.
Zhou Qing
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Configuration Optimisation of Laser Tracker Location on Verification Process [PDF]
Materials, 2020 Machine tools are verified and compensated periodically to improve accuracy. The main aim of machine tool verification is to reduce the influence of quasi-static errors, especially geometric errors. As these errors show systematic behavior, their influence can be compensated. However, verification itself is influenced by random uncertainty sources that
Sergio Aguado +4 more
openaire +4 more sources
Applied Sciences, 2022 The laser tracker has characteristics of high measurement accuracy and wide measurement range. Laser tracker technology, as an effectively large-scale measuring approach, plays a critical role in dynamic measurement.
Fei Lv +3 more
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