Pneumatic follower for the wooden surface quality assessment

Wooden or wood-plastic composite surfaces are often valued for their aesthetic appearance and the quality of the surface. Independent from the technology, the surface features may be assessed using typical roughness parameters. In this paper, a pneumatic non-contact method is proposed. Despite certain limitations in surface characteristics measurement, air gauges proved to be a good tool for wooden surfaces, much cheaper than the laser profilometers. In the current research, a novel non-contact air gauge was combined with a slider to eliminate the influence of the asperities of higher order (waviness) and to protect the wooden surface from being damaged by the measuring nozzle. The measurement signal was used to control a follower that kept constant distance between the surface and the nozzle edge. The measuring speed was set at 0.8 mm/s, and the back-pressure was measured with accuracy of 0.01 kPa with real time acquisition. A series of measurements was taken, and the results were compared with the ones obtained from Perthen S8P profilometer (contact measurement) and WYKO NT 1100 interferometer microscope.

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“…Metrological characteristics of the air gauges applied to measure wooden samples(Jermak et al 2017b) …”

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confidence: 99%

Accuracy of the pneumatic follower for the wooden surface quality assessment

2020

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Pneumatic follower for the wooden surface quality assessment

Cited by 1 publication

References 8 publications

Accuracy of the pneumatic follower for the wooden surface quality assessment

Accuracy of the pneumatic follower for the wooden surface quality assessment

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