Development of PSD Sensor Based Range Finder System Using Linearizing Function of Voltage-Distance Conversion

Abstract

Abstract: In this paper, the range finder system using a PSD sensor suitable for low-cost localization sensor of a mobile robot. Because the distance-voltage output of a PSD sensor has a non-linear property, the linearizing function is proposed through the experimental characteristics of the sensor. And the characteristics are tested and the distance-voltage data are measured in various colors and materials of object. For a known environment, a mobile robot scans the surroundings using a PSD sensor that can rotate 360˚. Finally, the performance and accuracy of the developed system are verified according to the comparison the distance by proposed function with real distance