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Full-Text Articles in Engineering

Assessing Laser Lifetime Test Performance, Joe Weichman, Hamid Hemmati, Malcolm Wright Aug 2011

Assessing Laser Lifetime Test Performance, Joe Weichman, Hamid Hemmati, Malcolm Wright

STAR Program Research Presentations

Assessing expected component lifetime is necessary in developing instruments for future space-flight projects to ensure long term operation in the challenging environment. Although semiconductor diode lasers have widespread use in terrestrial applications, their use in space is still an emerging technology that requires on-going testing to demonstrate their capability. The project called for re-establishing the test setup for assessing lifetime performance of 20 continuously running 200mW 830 nm diode lasers. These lasers underwent previous testing based on parameters for NuSTAR’s laser metrology system, and met the six month lifetime project requirements under nominal operating conditions. Laser testing is currently underway …


Sick Laser Scanner Power Supply For Use With A Yamaha Rmax Uav, Elliot Due Jun 2011

Sick Laser Scanner Power Supply For Use With A Yamaha Rmax Uav, Elliot Due

Electrical Engineering

No abstract provided.


Laser Cursor, Michael Liman Jun 2011

Laser Cursor, Michael Liman

Electrical Engineering

A user controls a cursor on a computer screen using a laser pointer. A camera picks up the laser pointer’s position and sends the data to the computer to move the cursor in the correct position.


A Pmma Conductivity Pretreatment Microfluidics Device For The Optimization Of Electrokinetic Manipulations, Cameron Paul Purcell Jun 2011

A Pmma Conductivity Pretreatment Microfluidics Device For The Optimization Of Electrokinetic Manipulations, Cameron Paul Purcell

Master's Theses

This project encompasses the design and development of a pretreatment microfluidic device for samples of physiological conductivity, namely a saline solution. The conductivity was reduced through the combination of dilution and ion removal using electric fields to enable downstream electro kinetic manipulations. The two major parts of this project include (1) designing a pretreatment protocol to reduce the conductivity of the sample solution to an acceptable level and (2) designing /fabricating a microchip that will effectively allow aim (1) to be performed on chip.

This project is one of the first to observe the effects of an electric field, used …


3-D Terrain Mapping And Navigation Using A Laser Range Finder, Matthew L. Azevedo, Matthew Parilla, Kevin K. Parsons Feb 2011

3-D Terrain Mapping And Navigation Using A Laser Range Finder, Matthew L. Azevedo, Matthew Parilla, Kevin K. Parsons

Mechanical Engineering

The purpose of this Senior Project is to develop and implement a three-dimensional mapping and navigation system utilizing laser technology on a robotic platform. The sponsor of this project, Synbotics® Incorporated, currently has an obstacle avoidance system only operating in a single horizontal plane. This limits the mapping and navigation ability of the robot because objects below and above this plane are not accounted for. A three-dimensional system is needed to allow the robot to better navigate and map an area by accounting for these objects in the third dimension and avoiding collisions. Keith Guy, Synbotics® Chief Executive Officer, requested …