Geometry-based, Gaussian profile model for optical knife-edge displacement sensor

Zameroski, Ross; Gomez, Michael; Schmitz, Tony L.

doi:10.1016/j.precisioneng.2021.10.011

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Functional Principle and Mechanical Design1

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2023

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“…Several methods have been previously investigated including contactless eddy current position sensors or strain gauges mounted on the flexure elements. To provide convenient assembly, high resolution, and inexpensive and commonly available components, optical interrupters (or knife edge sensors [27]) were chosen for the final design, see Fig. 3b.…”

Section: Functional Principle and Mechanical Designmentioning

confidence: 99%

Flexure-based dynamometer for vector-valued milling force measurement

Ramsauer¹,

Leitner²,

Habersohn³

et al. 2023

Journal of Machine Engineering

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Variation in cutting forces with cutting parameter selection, tool geometry, and wear status plays an important role for milling process evaluation and modeling. While piezoelectric force measurement is commercially available, it is often considered a precise but expensive method. This paper presents a novel solution for vector-valued cutting force measurement. The table-mounted, flexure-based kinematics provide three degrees of freedom that are used to measure the in-process milling force vector components in the working plane by low-cost optical sensors. Based on analytical models and FEM analysis, an appropriate design was derived. The assembly and testing of the developed dynamometer are presented. A test setup based on a machining center was used for the system evaluation and the data are compared to the forces measured by a commercially available, piezoelectric cutting force dynamometer.

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Section: Functional Principle and Mechanical Designmentioning

confidence: 99%