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Model based compensation of systematic errors in an inductive gap measurement method
GKN Aerospace Engine Systems, Trollhättan, Sweden ; Engineering Science, University West, Trollhättan, Sweden.
Engineering Science, University West, Trollhättan, Sweden.ORCID iD: 0000-0001-6933-375X
2017 (English)In: Measurement: Journal of the International Measurement Confederation, ISSN 0263-2241, Vol. 105, p. 17-24Article in journal (Refereed) Published
Abstract [en]

A model-based correction of systematic errors to improve the measurement of gap dimensions in a recently presented method is described. Using one inductive coil on each side of the gap to measure distance and liftoff, the method detects zero width gaps and shows position error less than 0.1 mm. The correction model relies on observations of experimental data, and is calibrated to a small set of measurements. From the initial measurement of gap dimensions, the model estimates errors in each coil to calculate new values for gap width, alignment and height. The errors in the compensated results are within 0.1 mm except for gap width, which still suffers from the effect of combined gap width and misalignment. The method is intended for gap measurement in laser keyhole welding, where the laser beam and the resulting weld seam are very narrow, requiring high precision in alignment and gap preparation.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 105, p. 17-24
Keywords [en]
Seam tracking, Inductive, Complex response, Zero gap, Laser beam welding, Error compensation
National Category
Manufacturing, Surface and Joining Technology Robotics Reliability and Maintenance Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:his:diva-21815DOI: 10.1016/j.measurement.2017.03.043ISI: 000401378400003Scopus ID: 2-s2.0-85017174867OAI: oai:DiVA.org:his-21815DiVA, id: diva2:1695614
Funder
Knowledge Foundation
Note

CC BY-NC-ND 4.0

Corresponding author at: University West, Nohabgatan 18A, SE-461 53 Trollhättan, Sweden. E-mail address: edvard.svenman@gknaerospace.com (E. Svenman).

The authors gratefully acknowledge the financial support from the Research School SiCoMaP, funded by the Knowledge Foundation, and GKN Aerospace Engine Systems.

Available from: 2022-09-14 Created: 2022-09-14 Last updated: 2022-09-26Bibliographically approved

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Runnemalm, Anna

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