Spectrum Estimation in Autocalibration of Ultrasonic Reflectometry Methods for Lubrication Film Thickness Measurements

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Reliable and efficient mechatronic systems is the focus of a large number of engineers today. From this it follows that experimental techniques to study critical locations with respect to wear and energy dissipation, such as tribological contacts, are receiving much attention. A fundamental problem is that friction is not an intrinsic material property, but a system property, and this gap between real tribological systems and idealized laboratory test systems is a main research challenge in tribology today. An appealing approach to overcome this problem is the use of non-invasive experimental techniques. Ultrasound based techniques to study lubrication film thickness measurements is in this regard a tempting tool, however the calibration procedure for this technology can be challenging and the robustness of the calibration is limited in highly dynamic environments, such as fluid power pumping and motoring units. In this paper the fundamental linear regression of an autocalibration algorithm is presented, which generalize previous results, and show that the dot product of the incident and reflected wave spectrum vectors is proportional to the squared magnitude of the reflected wave spectrum. In consequence, the incident wave spectrum should in general be obtainable by use of linear adaptive filtering techniques.

Original languageEnglish
Title of host publicationICCMA 2018 - Proceedings of the 6th International Conference on Control, Mechatronics and Automation
Number of pages5
PublisherAssociation for Computing Machinery
Publication dateOct 2018
Pages154-158
ISBN (Print)978-1-4503-6563-5
ISBN (Electronic)9781450365635
DOIs
Publication statusPublished - Oct 2018
Event6th International Conference on Control, Mechatronics and Automation - Tokyo, Japan
Duration: 12 Oct 201814 Oct 2018

Conference

Conference6th International Conference on Control, Mechatronics and Automation
CountryJapan
CityTokyo
Period12/10/201814/10/2018
SeriesACM International Conference Proceedings Series

Fingerprint

Thickness measurement
Lubrication
Film thickness
Ultrasonics
Calibration
Adaptive filtering
Tribology
Mechatronics
Linear regression
Energy dissipation
Materials properties
Wear of materials
Friction
Engineers
Fluids

Keywords

  • Ultrasonics
  • Lubrication
  • Thickness
  • Measurements

Cite this

Kæseler, R. L., & Johansen, P. (2018). Spectrum Estimation in Autocalibration of Ultrasonic Reflectometry Methods for Lubrication Film Thickness Measurements. In ICCMA 2018 - Proceedings of the 6th International Conference on Control, Mechatronics and Automation (pp. 154-158). Association for Computing Machinery. ACM International Conference Proceedings Series https://doi.org/10.1145/3284516.3284534
Kæseler, Rasmus Leck ; Johansen, Per. / Spectrum Estimation in Autocalibration of Ultrasonic Reflectometry Methods for Lubrication Film Thickness Measurements. ICCMA 2018 - Proceedings of the 6th International Conference on Control, Mechatronics and Automation. Association for Computing Machinery, 2018. pp. 154-158 (ACM International Conference Proceedings Series).
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Kæseler, RL & Johansen, P 2018, Spectrum Estimation in Autocalibration of Ultrasonic Reflectometry Methods for Lubrication Film Thickness Measurements. in ICCMA 2018 - Proceedings of the 6th International Conference on Control, Mechatronics and Automation. Association for Computing Machinery, ACM International Conference Proceedings Series, pp. 154-158, 6th International Conference on Control, Mechatronics and Automation, Tokyo, Japan, 12/10/2018. https://doi.org/10.1145/3284516.3284534

Spectrum Estimation in Autocalibration of Ultrasonic Reflectometry Methods for Lubrication Film Thickness Measurements. / Kæseler, Rasmus Leck; Johansen, Per.

ICCMA 2018 - Proceedings of the 6th International Conference on Control, Mechatronics and Automation. Association for Computing Machinery, 2018. p. 154-158 (ACM International Conference Proceedings Series).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Kæseler RL, Johansen P. Spectrum Estimation in Autocalibration of Ultrasonic Reflectometry Methods for Lubrication Film Thickness Measurements. In ICCMA 2018 - Proceedings of the 6th International Conference on Control, Mechatronics and Automation. Association for Computing Machinery. 2018. p. 154-158. (ACM International Conference Proceedings Series). https://doi.org/10.1145/3284516.3284534