Home // INTELLI 2013, The Second International Conference on Intelligent Systems and Applications // View article

Measurement and Calibration System of Arrow’s Impact Point using High Speed Object Detecting Sensor

Authors:
Yeongsang Jeong
Hansoo Lee
Jungwon Yu
Sungshin Kim

Keywords: Keywords-measuring systemt; calibration; neural network; impact point; photodiode; arrow

Abstract:
Abstract— Currently, the method used to analyze the manufactured arrow’s performance is to use the accumulated impact points of arrow. The impact point of arrow is appeared by shooting the arrow repeatedly with same force to a target paper using a shooting device. The method has some weak points, such as low accuracy, it needs long time to do the experiments because the arrow is shoot in several times, and difficult to digitize between impact points. Therefore, the measuring system for comparing manufactured arrows performance objectively and confirming quality and performance of arrow methodically and a sensor that can measure high-speed-moving object is needed. In this paper, line lasers are placed upper side and left side of a square-shaped frame, and photodiode sensors are installed at the opposite side of line lasers. When fired arrow goes through the square shaped frame, the voltage acquisition device measures the voltage level difference of photodiodes. Impact points of arrow are shown using the data derived by voltage acquisition device. A neural network calibration method is implemented using impact points which are printed out precisely by manufactured grid plate. The calibration method replaces the impact points included errors with precision and high reliability impact points.

Pages: 167 to 172

Copyright: Copyright (c) IARIA, 2013

Publication date: April 21, 2013

Published in: conference

ISSN: 2308-4065

ISBN: 978-1-61208-269-1

Location: Venice, Italy

Dates: from April 21, 2013 to April 26, 2013