3 measurement strategy the selection of the

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Unformatted text preview: ic deviations b are smaller, it can be assumed that the influence of the CMM has not changed, otherwise the CMM has to be re-verified. 3.4. Knowledge base for evaluating the impact of influences and generating a long time revision The feature specific deviations are stored in a SQL database together with information about significant influences as environmental conditions, selected measurement strategy and operator. By means of data processing the scenarios, containing deviations and related influences, a knowledge base is created. This knowledge base will subsequently define the pre-conditions for the evaluation of the influences’ impact. Automated evaluation routines and a management console were set up on the basis of the acquired knowledge. The management console enables the access to data in the knowledge base regarding the long-run behavior of the CMM, in order to identify changes of the CMM accuracy in the time response. The inspections of the long-run behavior can be transparently documented in quality control charts. Thereby several influences, e.g. me...
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This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.

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