Virtual spheres gauge for coordinate measuring arms performance test

Piratelli-Filho, Antonio; Lesnau, Glauber Roberto

doi:10.1016/j.measurement.2009.10.002

Cited by 39 publications

(31 citation statements)

References 9 publications

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“…Determining of the accuracy of geometrical elements of a CMA is a multi-staged task and an extremely difficult and laborious one [17][18][19][20][21]. In most cases, all of the tasks are performed only once, while the remaining ones are repeated only when calibrating the device, or after its dismantling and reassembly.…”

Section: Determination Of the Accuracy Of The Geometrical Elements Ofmentioning

confidence: 99%

Determining the uncertainty of measurement with the use of a Virtual Coordinate Measuring Arm

Ostrowska

Gąska

Sładek

2013

Int J Adv Manuf Technol

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Coordinate Measuring Arms are redundant measuring devices that are widely used today. Therefore, this paper presents a solution of the problem of online estimation of accuracy of measurements done on coordinate measuring arms. This paper shows the metrological model called Virtual Coordinate Measuring Arm. It is composed of a kinematic model of arm, created using the Denavit-Hartenberg convention connected with PC-DMIS measuring software and usage of Monte Carlo method. Verification tests done according to VDI/VDE 2617-7 guideline show that the created model is working properly. Also the comparison of results of measurements done on real Coordinate Measuring Arm and simulated by the created model proves correctness of the model. The metrological model of Virtual Coordinate Measuring Arm can be a breakthrough in the use of the coordinate measuring arms in quality assurance systems in production.

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Section: Determination Of the Accuracy Of The Geometrical Elements Ofmentioning

confidence: 99%

Determining the uncertainty of measurement with the use of a Virtual Coordinate Measuring Arm

Ostrowska

Gąska

Sładek

2013

Int J Adv Manuf Technol

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“…Shimojima et al [19] presented a 3D ball plate with nine balls. Piratelli et al [20] introduced the development of virtual ball bar to evaluate the performance of PACMM. González et al [21] introduced a virtual circle gauge was applied in evaluating the performance of PACMM and it was composed of bar gauges of 1000 mm length with four groups of three cone-shaped holes.…”

Section: Introductionmentioning

confidence: 99%

A New Kinematic Model of Portable Articulated Coordinate Measuring Machine

Jia

et al. 2016

Applied Sciences

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Portable articulated coordinate measuring machine (PACMM) is a kind of high accuracy coordinate measurement instrument and it has been widely applied in manufacturing and assembly. A number of key problems should be taken into consideration to achieve the required accuracy, such as structural design, mathematical measurement model and calibration method. Although the classical kinematic model of PACMM is the Denavit-Hartenberg (D-H) model, the representation of D-H encounters the badly-conditioned problem when the consecutive joint axes are parallel or nearly parallel. In this paper, a new kinematic model of PACMM based on a generalized geometric error model which eliminates the inadequacies of D-H model has been proposed. Furthermore, the generalized geometric error parameters of PACMM are optimized by the Levenberg-Marquard (L-M) algorithm. The experimental result demonstrates that the measurement of standard deviation of PACMM based on the generalized geometric error model has been reduced from 0.0627 mm to 0.0452 mm with respect to the D-H model.

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“…In [17] it is proposed a solid plate composed of kinematic seats as gauge for AACMM's calibration. Piratelli [18] introduces the development of virtual geometry gauges, virtual ball bar, to evaluate the performance of AACMMs. The proposed gauge has two groups of four holes each that are used to determine points of the spherical surfaces.…”

Section: Introductionmentioning

confidence: 99%