Journal ArticleDOI
A novel orientation and position measuring system for large & medium scale precision assembly
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TLDR
A novel measuring system, consisting of four motorized stages, a laser rangefinder, an autocollimator and a camera is proposed to assist precision assembly, and the preliminary experimental results agree with the methods currently being used for orientation and position measurement.About:
This article is published in Optics and Lasers in Engineering.The article was published on 2014-11-01. It has received 29 citations till now. The article focuses on the topics: Autocollimator & Autocollimation.read more
Citations
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Journal ArticleDOI
Pose alignment of aircraft structures with distance sensors and CCD cameras
Hua Liu,Weidong Zhu,Yinglin Ke +2 more
TL;DR: The results show that the pose alignment system integrated with the proposed multi-sensor pose measurement system can meet the accuracy and repeatability required in industrial application.
Journal ArticleDOI
Development and calibration of an accurate 6-degree-of-freedom measurement system with total station
TL;DR: In this paper, a 6-degree-of-freedom (6-DOF) measurement system based on total station by utilizing its advantages of long range and relative high accuracy is presented.
Journal ArticleDOI
Configuration Analysis of the ERS Points in Large-Volume Metrology System
TL;DR: To optimize the deployment of the ERS points, an explicit model is derived to estimate the transformation matrix errors and a group of sensitivity coefficients are derived to evaluate the quality of the configuration of theERS points.
Journal ArticleDOI
Measuring principle and uncertainty analysis of a large volume measurement network based on the combination of iGPS and portable scanner
Zhehan Chen,Fuzhou Du +1 more
TL;DR: In this paper, a measurement network constructed by iGPS and portable scanner is proposed, and the measuring principles of the two kinds of measuring devices are studied firstly, as well as the characteristics of their layouts and measurement uncertainties, based on simulating and actual measuring experiments.
Journal ArticleDOI
Investigating the measurement of offshore wind turbine blades using coherent laser radar
TL;DR: In this paper, an accurate measurement technique using Coherent laser radar technology combined with B-spline point generation and alignment is proposed for wind turbine blade inspection. But this technique is not applicable to other large-scale non-rigid, unconstrained objects.
References
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Proceedings ArticleDOI
The Cricket location-support system
TL;DR: The randomized algorithm used by beacons to transmit information, the use of concurrent radio and ultrasonic signals to infer distance, the listener inference algorithms to overcome multipath and interference, and practical beacon configuration and positioning techniques that improve accuracy are described.
Patent
Magnetic tracking system
TL;DR: In this paper, the authors present an electromagnetic tracking system that includes a field generator and a field sensor arranged to generate and detect, respectively, an electromagnetic field. But this system is not suitable for the use of a disturber in the form of a conductive ring or a sheath.
Journal ArticleDOI
Large-Scale Metrology – An Update
TL;DR: A review of large-scale engineering metrology since the 1978 report of Puttock is given in this article, where techniques for high-accuracy straightness measurement, precision leveling and absolute distance metrology are described, together with approaches to compensation for the effects of atmospheric refraction.
Journal ArticleDOI
Optical measurement techniques for mobile and large-scale dimensional metrology
TL;DR: In this paper, the authors present a short survey of common optical measurement techniques for mobile and large-scale measurements, focusing on two industrial cases where different techniques were used to solve a measurement problem.
Optical measurement techniques for mobile and large scale dimensional metrology
TL;DR: This paper focuses on two industrial cases where different techniques were used to solve a measurement problem, and despite some specific drawbacks of photogrammetry systems it was possible to obtain the same accuracy and to reduce the overall inspection time significantly in comparison with the current situation.