Introduction

The MEMS based distance measurement device is a system that uses a deformable MEMS mirror to measure the distance of an object from the device. The systems has to be able to measure a space of four inches, offset 2-6 inches from the device. Using a confocal lens setup and a laser, the emitted light will hit the object, bounce back to the system, and be recorded by a photodiode. The MEMS mirror makes it possible to change the focus point of our emitting laser. When the laser is perfectly focussed on the object, maximum reflected light will enter the system, and this measurement will be see as a peak in data analysis over the range of MEMS mirror positions. The entire system will be controlled by a microcontroller, which will output the distance measurement to an LCD screen, and save the measurement for USB handshake with other devices. The device must work in any lighting condition, and be able to measure the distance of objects with varying composition.

Motivation

The MEMS Measurement System is applicable to a variety of solutions. This includes robotic systems, machinery, production environments, backup sensors, and more. The system will be very useful for applications that need quick and precise distance measurements on a small footprint. USB handshake with other devices is a requirement for the system, so a wide variety of devices should be able to interact with the MEMS distance measurement device.

Sponsor Information

Chris Arrasmith | Revibro Optics

MEMS Distance Measurement Device Sponsor

Tel: (406)-624-9068

Prof. David Dickensheets | College of Engineering

MEMS Distance Measurement Device Advisor

Office: 530 Cobleigh Hall
Tel: +1 (406)-994-7874
Email: davidd@ece.montana.edu