Operations Research, Systems Engineering and Industrial Engineering Commons^™

Analysis And Selection Of New Rental Paintball Masks For Gladiator Paintball Park, Geoff Wakefield

Industrial and Manufacturing Engineering

This project is designed to select new rental paintball masks for Gladiator Paintball Park. The currently used rental masks are worn down and need replacement. Criteria for new rental masks are examined and include customer preferences, owner's constraints, and time studies. Candidate masks were found by asking customers what they like in rental masks, interviewing other paintball field owners, and referring to the online paintball community. Three candidate masks were found, the V-Force Vantage, JT Alpha, and Kingman java paintball masks. These masks were compared to the currently used rental masks, the V-Force Armor. Customers were surveyed to find out …

Solder Qwik Pentm, Katherine E. Robbins

Industrial and Manufacturing Engineering

Electronics soldering is a technique used frequently in the manufacturing of Printed

Circuit Boards (PCB) to attach small electronic parts or wires together. Often times

the need to remove a solder joint arises; this is known as desoldering. Solder wick,

fine braided copper wire infused with rosin, is one of the most effective ways to

desolder because it results in the cleanest joints. Currently using solder wick

involves several time consuming and somewhat awkward steps. This report will

cover the process behind designing, manufacturing, and testing a new ergonomic,

dispenser for solder wick that can be used with one hand. …

Design, Reconstruction And Evaluation Of A Dynamometer For Quarter Scale, Samuel Sanchez

BioResource and Agricultural Engineering

This project discusses the design, reconstruction, and evaluation of a dynamometer. A new test stand for the Quarter Scale team would improve the testing of the engines and the Continuously Variable Transmission (CVT). All the readings will be done electronically in order to provide the most accurate data collection. The dynamometer will be a closed hydraulic system for ease of use. This system will be able to test all of Quarter Scale engines. The data collected will be used to determine which engines are in the best condition, and which may need to be fixed. With the new design, the …

Optimization Of Lifeguard Towers, Equipment, And Sign Placement With Human Factors Considerations For The Cal Poly Recreation Center Expansion, Brian J. Henrikson

Industrial and Manufacturing Engineering

Cal Poly’s Recreation Center serves many faculty, students and alumni by providing them with a safe and fun environment to work out and swim. An overwhelming majority of students voted for a Recreation Center expansion to handle the increased usage of the Center over the past few years. The focus of this report is the safe and effective operations of the pool deck and the lifeguard staff. Three surveys were created to see what the lifeguard staff, as well as pool users, thought about the current pool deck and what they would like to see in the new pool deck …

Design Of An 8-Channel Data Acquisition System For Measuring Diode Junction Temperature, Jason Maynard

Industrial and Manufacturing Engineering

The solid state lighting industry is striving to expand the use of light emitting diodes (LEDs) in more applications, particularly in high brightness applications. As the power of LEDs increase, heat removal becomes a critical issue. To improve device lifetime, quantum efficiency, and LED colour, the diode p-n junction temperature (Tj) must be kept to a minimum. Measuring this key parameter is difficult or impossible with direct methods, such as thermocouples and infrared cameras, due to the small size of LEDs. Fortunately, junction temperature can be measured indirectly by using a relationship between the diode forward voltage (Vf) and junction …