Microprobe with 3D Orthogonal Kinematics for Dimensional Measurement of Industrial Microparts

Metz, David; Jantzen, Stephan; Stein, Martin; Kniel, Karin; Dietzel, Andreas

doi:10.1109/transducers.2019.8808307

Cited by 1 publication

(2 citation statements)

References 11 publications

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“…where k is the stiffness and m is the moving mass [27]. Usually, high eigenfrequencies provide better dynamic performance [28,29]. Therefore, microprobes usually feature excellent dynamic behaviour because of their small mass.…”

Section: Dynamic Effectsmentioning

confidence: 99%

“…Furthermore, since most microprobes are fragile, the overall movement speed of the machine is reduced to several millimeters per second. The approach speed during discrete point probing is even smaller because the maximum microprobe deflection often ranges from ±20 µm to ±400 µm [28,47], which is small compared to conventional probe heads. Scanning of microgears reduces the measurement time considerably and due to the small scanning speeds, the scanning measurement may often be seen as quasi-static in a first approximation-the differences observed between scanning and discrete point probing with PTB's µCMM were negligible.…”

Section: Ptb's Experience In Scanning Microgears and Large Gearsmentioning

confidence: 99%

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Involute gear calibration using tactile CMMs in scanning mode

Stein

Wedmann

Jantzen

et al. 2020

Meas. Sci. Technol.

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Modern coordinate measuring machines (CMMs) feature high-precision scanning due to improved mechanics, electronics, control, and software. PTB's Coordinate Metrology department therefore executed a thorough experimental comparison of the performance of scanning and discrete point probing regarding involute gear calibrations. In the last four years, PTB used scanning and discrete point probing to calibrate 29 different gear geometries covering a wide range of industry-relevant workpieces. Based on these extensive experiments and their analysis regarding measurement results, uncertainty and time, PTB decided to use scanning for gear calibrations in the future while guaranteeing the same measurement uncertainties and the same high level of reliability. This paper comprises an overview of tactile CMM scanning technology, PTB's gear calibration strategy, the measurement results, measurement uncertainty analyses, and a discussion of the task-specific advantages and challenges of scanning.

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Section: Dynamic Effectsmentioning

confidence: 99%

Section: Ptb's Experience In Scanning Microgears and Large Gearsmentioning

confidence: 99%