Development of a Coordinate Measuring System with Tracking Laser Interferometers

Nakamura, Osamu; Goto, Mitsuo; Toyoda, Kouji; Tanimura, Yoshihisa; Kurosawa, Toshiro; Uehara, Kazutake

doi:10.1016/s0007-8506(07)62045-9

Cited by 35 publications

(7 citation statements)

References 1 publication

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“…The beam steering mechanism and the rotary encoders are subject to misalignments, offsets, nonlinearities and coaxiality errors [92]. The angular measurement accuracy also degrades rapidly with increasing measurement distance [155]. A hemisphere mirror instead of a plane mirror of a traditional laser tracker has been used in order to solve the mirror offset problem [163].…”

Section: Laser Trackermentioning

confidence: 99%

Measurement technologies for precision positioning

et al. 2015

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Section: Laser Trackermentioning

confidence: 99%

Measurement technologies for precision positioning

et al. 2015

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“…An alternative approach to minimize the influence of the weight of the component being measured on the distortion of the measuring scales is to utilize the properties of a series of precisely measured distances, or displacements, between reference points on a non-load-bearing structure to create a 'virtual metrology frame'. The idea dates back to the mid-1960s when it was developed for two-dimensional applications [15], but it was first applied to three-dimensional measurements in the early 1980s [16][17][18][19][20][21][22].…”

Section: Uses Of Laser Trackers In Multilateration Applicationsmentioning

confidence: 99%

Recent developments in large-scale dimensional metrology

Peggs

Maropoulos

Hughes

et al. 2009

Proceedings of the Institution of Mechanical Engineers, Part B:

172

117

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With ever-more demanding requirements for the accurate manufacture of large components, dimensional measuring techniques are becoming progressively more sophisticated. This review describes some of the more recently developed techniques and the state-of-the-art in the more well-known large-scale dimensional metrology methods. In some cases, the techniques are described in detail, or, where relevant specialist review papers exist, these are cited as further reading. The traceability of the measurement data collected is discussed with reference to new international standards that are emerging. In some cases, hybrid measurement techniques are finding specialized applications and these are referred to where appropriate.

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“…Moreover, the use of absolute distance measurement (ADM) offers the convenience of re-establishing distance data after a beam-break event, as well as dynamic measurement related to speed improvement [5,6]. However, the uncertainty associated with angular information remains the main source of error in of 16 large-volume measurement [7]. Efforts to reduce this error have led to the use of multilateration tracking systems (MLTSs), in which angle measurement is entirely removed and only multi-distance information is used for three-dimensional (3D) coordinate measurement [8].…”

Section: Introductionmentioning

confidence: 99%

Improved Self-Calibration of a Multilateration System Based on Absolute Distance Measurement

Nguyen

Kim

Han

et al. 2020

Sensors

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Multilateration tracking systems (MLTSs) are used in industrial three-dimensional (3D) coordinate measuring applications. For high-precision measurement, system parameters must be calibrated properly in advance. For an MLTS using absolute distance measurement (ADM), the conventional self-calibration method significantly reduces estimation efficiency because all system parameters are estimated simultaneously using a complicated residual function. This paper presents a novel self-calibration method that optimizes ADM to reduce the number of system parameters via highly precise and separate estimations of dead paths. Therefore, the residual function to estimate the tracking station locations can be simplified. By applying a suitable mathematical procedure and solving the initial guess problem without the aid of an external device, estimation accuracy of the system parameters is significantly improved. In three self-calibration experiments, with ADM repeatability of approximately 3.4 µm, the maximum deviation of the system parameters estimated by the proposed self-calibration method was 68.6 µm, while the maximum deviation estimated by the conventional self-calibration method was 711.9 µm. Validation of 3D coordinate measurements in a 1000 mm × 1000 mm × 1000 mm volume showed good agreement between the proposed ADM-based MLTS and a commercial laser tracker, where the maximum difference based on the standard deviation was 17.7 µm. Conversely, the maximum difference was 98.8 µm using the conventional self-calibration method. These results confirmed the efficiency and feasibility of the proposed self-calibration method.

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Development of a Coordinate Measuring System with Tracking Laser Interferometers

Cited by 35 publications

References 1 publication

Measurement technologies for precision positioning

Measurement technologies for precision positioning

Recent developments in large-scale dimensional metrology

Improved Self-Calibration of a Multilateration System Based on Absolute Distance Measurement

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