Ultrasonic Radar and Its Applications


Siddique M.

9th WSEAS International Conference on Applied Informatics and Communications, Moscow, Russia, 20 - 22 August 2009, pp.225-226 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Moscow
  • Country: Russia
  • Page Numbers: pp.225-226

Abstract

A rangefinder is a device that measures distance from the observer to a target, for the purposes of surveying, determining focus in photography, or accurately alining a weapon. Some devices use active methods to measure (such as sonar, laser, or radar); others, available since the nineteenth century, measure distance using trigonometry (stadia metric rangefinders and parallax, or coincidence rangefinders). They usually use a set of known distances or target sizes to make the measurement [2].