Next Article in Journal
Underwater Sensor Nodes and Networks
Next Article in Special Issue
Automatic Determination of Validity of Input Data Used in Ellipsoid Fitting MARG Calibration Algorithms
Previous Article in Journal
SIVEH: Numerical Computing Simulation of Wireless Energy-Harvesting Sensor Nodes
Previous Article in Special Issue
Design and Implementation of a New Real-Time Frequency Sensor Used as Hardware Countermeasure
Sensors 2013, 13(9), 11772-11781; doi:10.3390/s130911772
Article

Surface Roughness Measurement on a Wing Aircraft by Speckle Correlation

*  and
Received: 1 July 2013; in revised form: 26 August 2013 / Accepted: 30 August 2013 / Published: 5 September 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2013)
View Full-Text   |   Download PDF [334 KB, uploaded 21 June 2014]   |   Browse Figures
Abstract: The study of the damage of aeronautical materials is important because it may change the microscopic surface structure profiles. The modification of geometrical surface properties can cause small instabilities and then a displacement of the boundary layer. One of the irregularities we can often find is surface roughness. Due to an increase of roughness and other effects, there may be extra momentum losses in the boundary layer and a modification in the parasite drag. In this paper we present a speckle method for measuring the surface roughness on an actual unmanned aircraft wing. The results show an inhomogeneous roughness distribution on the wing, as expected according to the anisotropic influence of the winds over the entire wing geometry. A calculation of the uncertainty of the technique is given.
Keywords: roughness measurement; speckle; non-contacting method; micro-detection roughness measurement; speckle; non-contacting method; micro-detection
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Salazar, F.; Barrientos, A. Surface Roughness Measurement on a Wing Aircraft by Speckle Correlation. Sensors 2013, 13, 11772-11781.

AMA Style

Salazar F, Barrientos A. Surface Roughness Measurement on a Wing Aircraft by Speckle Correlation. Sensors. 2013; 13(9):11772-11781.

Chicago/Turabian Style

Salazar, Félix; Barrientos, Alberto. 2013. "Surface Roughness Measurement on a Wing Aircraft by Speckle Correlation." Sensors 13, no. 9: 11772-11781.


Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert