Towards the Intelligent CMM

Zhang, G. X.; Liu, S. G.; Ma, Xinhui; Wang, J. L.; Wu, Yu‐Shan; Li, Zhitian

doi:10.1016/s0007-8506(07)61555-8

Cited by 15 publications

(5 citation statements)

References 15 publications

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“…CMM should be more flexible, efficient and intelligent enough to meet fluctuating demands of customers. According to Zhang et al [63], intelligent CMMs would most likely be…”

Section: Cmm Advancementsmentioning

confidence: 99%

New developments in coordinate measuring machines for manufacturing industries

Mian

Al-Ahmari

2014

Int. J. Metrol. Qual. Eng.

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Abstract. There have been substantial improvements in measurement systems in order to meet fluctuating market demands. This rapid change and development in measurement technology has primarily been governed by demands of accuracy and precision from aerospace, automotive and other manufacturing industries. Coordinate measuring machines (CMMs) available with different technologies and configurations has efficiently been fulfilling customer demands for more than a decade. Though, current CMMs can meet needs of rapid and increased demands of customers to a greater extent but still there is lot of scope for improvement and development in CMMs. The globalization of manufacturing has resulted in development of variety of complex products and miniaturization of mechanical components. The technology of micro/nanoscale 3D measurement is still a bottleneck for industries. Therefore, precise and accurate system which is flexible enough to deal with complexities of parts and micro & nano range products has to be investigated. In this paper, comprehensive review concerning CMMs with capabilities to measure micro/nano features has been presented. This work has also discussed different methods to estimate measurement uncertainty, as well as performance evaluation of CMMs. Moreover, novel concepts such as intelligent CMM, multi-sensor CMM, virtual CMM have been presented.

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“…CMM should be more flexible, efficient and intelligent enough to meet fluctuating demands of customers. According to Zhang et al [63], intelligent CMMs would most likely be…”

Section: Cmm Advancementsmentioning

confidence: 99%

New developments in coordinate measuring machines for manufacturing industries

Mian

Al-Ahmari

2014

Int. J. Metrol. Qual. Eng.

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“…The coordinate measuring machine (CMM) is a powerful tool in the modern manufacturing industry [1,2]. With the development of modern society, CMMs must be increasingly intelligent, and the next generation of CMMs is the intelligent CMM [1].…”

Section: Introductionmentioning

confidence: 99%

“…With the development of modern society, CMMs must be increasingly intelligent, and the next generation of CMMs is the intelligent CMM [1]. Intelligent CMMs should be able to recognize position and orientation, plan safe paths, and evaluate test results.…”

Section: Introductionmentioning

confidence: 99%

“…Only a few studies have focused on the position and orientation recognition of free-form surface workpieces. In relevant work on intelligent CMMs [1][2][3], a single camera is used to identify the position and orientation of the parts and a path planning method is proposed, but not for free-form surface parts [4]. Various methods, such as the ant colony algorithm and the genetic algorithm, have been proposed for path planning in the literature [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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T-Spline Based Unifying Registration Procedure for Free-Form Surface Workpieces in Intelligent CMM

Han

Wang

et al. 2017

Applied Sciences

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Abstract:With the development of the modern manufacturing industry, the free-form surface is widely used in various fields, and the automatic detection of a free-form surface is an important function of future intelligent three-coordinate measuring machines (CMMs). To improve the intelligence of CMMs, a new visual system is designed based on the characteristics of CMMs. A unified model of the free-form surface is proposed based on T-splines. A discretization method of the T-spline surface formula model is proposed. Under this discretization, the position and orientation of the workpiece would be recognized by point cloud registration. A high accuracy evaluation method is proposed between the measured point cloud and the T-spline surface formula. The experimental results demonstrate that the proposed method has the potential to realize the automatic detection of different free-form surfaces and improve the intelligence of CMMs.

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“…The measurements taken on the decks are a key factor when shapes and areas need to be calculated with accuracy in order to be covered with the mentioned material. Different techniques and equipments may be used: 3D laser scanners [ 8 ], theodolites and total stations, close range photogrammetry (CRP) [ 9 ], coordinates measurement machines (CMM) [ 10 ], and structured light systems [ 11 ]. Due to the characteristics of the measured pieces in this work and restrictions in the cost, size and weight of the equipments, the most suitable systems are CRP and low cost CMMs; thus, this paper only contains the results of a comparative survey of these two systems.…”

Section: Introductionmentioning

confidence: 99%

Application of Close Range Photogrammetry to Deck Measurement in Recreational Ships

Ordóñez

Riveiro

Arias

et al. 2009

Sensors

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In this article, we present results that demonstrate the utility of close range photogrammetry in the measurement of decks in recreational craft as an alternate measurement system to the one based on direct acquisition of coordinates. The areas of deck covered with teakwood for aesthetic or security reasons were measured. Both methods were compared in terms of precision of measurements, time consumption, equipment cost, and ease of manipulation and equipment transportation. Based on the results, we conclude that photogrammetry has advantages in almost every aspect with respect to the direct method. Consequently, photogrammetry is suggested as a suitable method for coordinate measurement of decks in recreational ships. However, in some special circumstances, where ships have wide corridors with few obstacles the direct method can be more appropriate than the photogrammetric method.

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Towards the Intelligent CMM

Cited by 15 publications

References 15 publications

New developments in coordinate measuring machines for manufacturing industries

New developments in coordinate measuring machines for manufacturing industries

T-Spline Based Unifying Registration Procedure for Free-Form Surface Workpieces in Intelligent CMM

Application of Close Range Photogrammetry to Deck Measurement in Recreational Ships

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