A test for the verification of involute gear software has been developed at the Physikalisch–Technische
Bundesanstalt (PTB). The paper show the critical influence on the measurement uncertainty of uncertified
involute evaluation software. Beside the test parameter information of the most dominant effects of software
errorswillbeexplained.Thealgorithmsdevelopedduringthisprojectshouldinfluenceandcompleteexisting
standards and guidelines.
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