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The Scientific World Journal
Volume 2013 (2013), Article ID 604538, 6 pages
Research Article

Small Obstacle Avoidance Sensor

RHV Consulting, LLC, 760 Jacktown Road, Lexington, VA 24450, USA

Received 18 March 2013; Accepted 28 April 2013

Academic Editors: L. De Stefano, P. Landais, P. Ma, and P. Meyrueis

Copyright © 2013 Richard H. Vollmerhausen. 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.


This paper describes a laser ranging sensor that is suitable for applications like small unmanned aerial vehicles. The hardware consists of a diode emitter array and line-scan charge coupled devices. A structured-light technique measures ranges up to 30 meters for 64 field angles in a 90 degree field of view. Operation is eye safe, and the laser wavelength is not visible to night vision goggles. This paper describes a specific sensor design in order to illustrate performance for a given package size.