Using a Laser Tracker to Measure the Surface of Off-Axis Aspheric Mirror During Grinding

Jie, 李杰 Li; Fan, 伍凡 Wu; Long, 匡龙 Kuang; Chang-qing, 林长青 Lin

doi:10.3788/aos201232.0112002

Cited by 4 publications

(2 citation statements)

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“…Their accuracy is not enough, and they cannot achieve the in site measurements. Laser tracker appeared in the 1990s as a three-dimensional measuring instrument for large dimensions is widely used in the industrial measuring system [1][2] , which is famous for its high precision, high efficiency, in site measurement, real-time dynamic tracking measurement and easy to be moved or installed etc. In this paper, a method with laser tracker on the basis of station-moving measurement is proposed.…”

Section: Introductionmentioning

confidence: 99%

Study on the station-moving measurement technology in the flatness measurement of large annular planes with a Laser Tracker

et al. 2015

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Laser tracker as a three-dimensional measuring instrument for large dimensions is widely used in the industrial measuring system, which is famous for its high precision, high efficiency, in site measurement and easy to be moved or installed etc. In order to measure the large annular planes especially non-continuous planes, a method with laser tracker on the basis of station-moving measurement is proposed. In this paper, the working principle of laser tracker system is described firstly, then the principle of the station-moving measurement is analyzed, finally according to the station-moving measurement principle experiment of the flatness measurement of a Φ5000mm round table is carried out, the result is compared with bridge-level, and feasibility of measuring flatness of large precision parts is validated by experiments and analysis results.

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Section: Introductionmentioning

confidence: 99%

Study on the station-moving measurement technology in the flatness measurement of large annular planes with a Laser Tracker

et al. 2015

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“…After nearly 20 years of technical innovation, Laser tracker as a three-dimensional measuring instrument for large dimensions which is famous for its high precision, high efficiency, in site measurement, real-time dynamic tracking measurement and easy to be moved or installed etc, is widely used in the automotive sector, aerospace, and optical manufacturing industry etc to meet the needs of measurement, assembly and calibration [1][2][3] .…”

Section: Introductionmentioning

confidence: 99%

Study on the algorithm in the measurement of large annular planes with a laser tracker

Zhu

Fan

Cao

et al. 2013

International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications

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To measure the flatness of the large annular planes, a method with laser tracker on the basis of multi-station and time-sharing measurement principle is proposed in this paper. The laser tracker is used to measure the flatness of large annular planes at different base stations. Based on the redundancy principle, the space coordinates of each measuring point can be determined by large amount of measured data. In the paper, the results of computer simulation for the principle are obtained with several iterative nonlinear algorithms, and it is shown that the method is feasible.

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Flatness measurement of large flat with two-station laser trackers

Yang

et al. 2018

International Journal of Optomechatronics

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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 the same sample points. The angular errors of the primary laser tracker are compensated with constraint information provided by an additional laser tracker. Using this method, we measure the flatness of a 4.5 m flat. The flatness measurement uncertainty is 1.4 mm in rms (root mean square).

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Using a Laser Tracker to Measure the Surface of Off-Axis Aspheric Mirror During Grinding

Cited by 4 publications

References 0 publications

Study on the station-moving measurement technology in the flatness measurement of large annular planes with a Laser Tracker

Study on the station-moving measurement technology in the flatness measurement of large annular planes with a Laser Tracker

Study on the algorithm in the measurement of large annular planes with a laser tracker

Flatness measurement of large flat with two-station laser trackers

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