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Laser-CCD based 6 degree-of-freedom ...

University of California, Davis.

Laser-CCD based 6 degree-of-freedom machine error measuring system /

紀錄類型:	書目-語言資料,印刷品 : 單行本
正題名/作者:	Laser-CCD based 6 degree-of-freedom machine error measuring system // Yue Yang.
作者:	Yang, Yue.
出版者:	Ann Arbor, MI. :Bell & Howell,c2000.
面頁冊數:	x, 168 p. :ill. ;22 cm.
附註:	UMI no.9969644
Contained By:	Dissertation Abstracts International61-04B.
標題:	Engineering, Mechanical. -
ISBN:	9780599744486 (pbk.)

Laser-CCD based 6 degree-of-freedom machine error measuring system /
Yang, Yue.

Laser-CCD based 6 degree-of-freedom machine error measuring system /Yue Yang. - Ann Arbor, MI. :Bell & Howell,c2000. - x, 168 p. :ill. ;22 cm.

UMI no.9969644

Thesis (Ph.D.)--University of California, Davis, 2000.

Includes bibliographical references.

Machine error measurement and compensation is very important for enhancing machining accuracy. Although the compensation based on indirect measurement or off-line calibration has been developed and used, real-time compensation based on direct error measurement is the most effective and accurate method to improve machining accuracy. Especially, the measurement method that can be used in an actual machining operation in a regular manufacturing environment is most preferred.

ISBN: 9780599744486 (pbk.) NT2675Subjects--Topical Terms:

170925
Engineering, Mechanical.

Dewey Class. No.: 621

Laser-CCD based 6 degree-of-freedom machine error measuring system /
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100 1 $a Yang, Yue. $3 170923
245 1 0 $a Laser-CCD based 6 degree-of-freedom machine error measuring system / $c Yue Yang.
260 $a Ann Arbor, MI. : $b Bell & Howell, $c c2000.
300 $a x, 168 p. : $b ill. ; $c 22 cm.
500 $a UMI no.9969644
500 $a Chair: Kazuo Yamazaki.
502 $a Thesis (Ph.D.)--University of California, Davis, 2000.
504 $a Includes bibliographical references.
520 $a Machine error measurement and compensation is very important for enhancing machining accuracy. Although the compensation based on indirect measurement or off-line calibration has been developed and used, real-time compensation based on direct error measurement is the most effective and accurate method to improve machining accuracy. Especially, the measurement method that can be used in an actual machining operation in a regular manufacturing environment is most preferred.
520 $a Taking above mentioned background into consideration, the concept of direct and simultaneous measurement of 6 degree-of-freedom (DOF) machine errors has been proposed for real-time machine error measurement and compensation in regular manufacturing environments. Based on this concept, a novel measuring system, which is referred to as the Laser-CCD Based 6 Degree-of-Freedom Machine Error Measuring System (LC6DMS), has been developed. LC6DMS consists of a laser module, a CCD measuring module, and a computer system for data processing. The unique design of the laser and CCD measuring modules enables LC6DMS to measure, simultaneously, 6 components of machine errors and keep a minimum size so that it can be attached to a machine tool for real-time application.
520 $a The theoretical basis for simultaneously measuring 6 DOF machine errors has been established. Forward solutions that show how machine error changes the positions of law beams on each CCD camera have been derived based on the law of reflection of optics and homogeneous coordinate transformation techniques. Reverse solutions have been formulated based on the forward solutions to determine 6 components of machine errors using beam center coordinates detected by the CCD cameras.
520 $a Some important laser and CCD characteristics and their influences on the measurement performance of LC6DMS have been addressed. Computer simulation has been conducted to optimize structural parameters of the laser module and CCD measuring module. A prototype of LC6DMS has been made based on the results of structural parameter optimization.
520 $a One of the biggest concerns in using a laser beam as a metrology basis is laser beam center drift. Statistical characteristics of beam center drift have been investigated; a digital method to reduce beam center drift has been developed.
520 $a In order to evaluate measurement performance of LC6DMS, a testing platform has also been built. The measurement results of LC6DMS were checked by some other high-accuracy measuring systems, and the comparison showed a good agreement.
590 $a School code: 0029.
650 4 $a Engineering, Mechanical. $3 170925
650 4 $a Engineering, Industrial. $3 170926
650 4 $a Engineering, Electronics and Electrical. $3 170927
710 2 $a University of California, Davis. $3 170924
773 0 $t Dissertation Abstracts International $g 61-04B.