dc.contributor.author Kuester, Matthew dc.contributor.author Intaratep, Nanyaporn dc.contributor.author Borgoltz, Aurélien dc.date.accessioned 2018-11-26T13:47:32Z dc.date.available 2018-11-26T13:47:32Z dc.date.issued 2018-11-22 dc.identifier.citation Kuester, M.; Intaratep, N.; Borgoltz, A. Laser Displacement Sensors for Wind Tunnel Model Position Measurements. Sensors 2018, 18, 4085. dc.identifier.uri http://hdl.handle.net/10919/86156 dc.description.abstract Wind tunnel measurements of two-dimensional wing sections, or airfoils, are the building block of aerodynamic predictions for many aerodynamic applications. In these experiments, the forces and pitching moment on the airfoil are measured as a function of the orientation of the airfoil relative to the incoming airflow. Small changes in this angle (called the angle of attack, or $α$ ) can create significant changes in the forces and moments, so accurately measuring the angle of attack is critical in these experiments. This work describes the implementation of laser displacement sensors in a wind tunnel; the sensors measured the distance between the wind tunnel walls and the airfoil, which was then used to calculate the model position. The uncertainty in the measured laser distances, based on the sensor resolution and temperature drift, is comparable to the uncertainty in traditional linear encoder measurements. Distances from multiple sensors showed small, but statistically significant, amounts of model deflection and rotation that would otherwise not have been detected, allowing for an improved angle of attack measurement. en_US dc.format.mimetype application/pdf en_US dc.language.iso en_US en_US dc.publisher MDPI dc.rights Creative Commons Attribution 4.0 International (CC BY 4.0) * dc.rights.uri http://creativecommons.org/licenses/by/4.0/ * dc.title Laser Displacement Sensors for Wind Tunnel Model Position Measurements en_US dc.type Article - Refereed en_US dc.date.updated 2018-11-22T14:23:35Z dc.title.serial Sensors dc.identifier.doi https://doi.org/10.3390/s18124085 dc.type.dcmitype Text en_US
﻿