Estimation of the Flexural Stiffness of Thin Plates Using a Single Low-Cost Passive Sensor
2014 (English)In: 2014 IEEE International Ultrasonics Symposium, IUS 2014: Chicago, Ill., 3-6 September 2014, Piscataway, NJ: IEEE Communications Society, 2014, 142-145 p.Conference paper (Refereed)
In this paper, a bending (flexural) wave mode in a thin plate is excited by tapping gently on the surface. The wave is recorded with single low-cost piezo-electric sensor. Due to the dispersive nature of this wave mode, the shape of the recorded signal depends on the flexural stiffness parameter of the plate. The recorded signal is also affected by the transfer function of the excitation and the sensor. In this paper we show, with simulations and measurements on a thin quartz glass plate, that the effect of the sensor and excitation can be decoupled from the bending wave, and that the flexural stiffness parameter can be estimated using a single sensor.
Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2014. 142-145 p.
, Proceedings - IEEE Ultrasonics Symposium, ISSN 1948-5719
Research subject Signal Processing
IdentifiersURN: urn:nbn:se:ltu:diva-38366DOI: 10.1109/ULTSYM.2014.0036Local ID: cbcb1624-f2e4-4fab-90e1-e7531568b44bISBN: 9781479970490OAI: oai:DiVA.org:ltu-38366DiVA: diva2:1011866
IEEE International Ultrasonics Symposium : 03/09/2014 - 06/09/2014
Validerad; 2015; Nivå 1; 20140828 (johanc)2016-10-032016-10-03Bibliographically approved