Electromagnetic FPCB micromirror scanning laser rangefinder

Abstract

This paper proposes a Flexible Printed Circuit(FPCB) micromirror scanning laser rangefinder, which consists of a laser source, a scanning FPCB micromirror, a lens and a PSD (Position Sensing Detector). The FPCB micromirror scans the laser beam and the triangulation method is used to measure the distance of points along the laser scanned line. The achieved performance is: Range detection 8-70 cm with less than 10 percent error. Total optical scanning FOV of 40 degrees. 100 distance measurements collected with a refresh rate of 10 Hz.