BATTERY PERFORMANCE METER FOR ELECTRIC PROPULSION SYSTEMS Team Members: Ryan Bickham, Dennis Blosser Cody Dinkins, Todd Dutton, Rachel Shively Project Sponsor: Patrick Taylor, Ph.D., AMRDEC January 22, 2008

High speed, high torque, 6-pole brushless motor 1880 rpm/volt (Kv) Motor Specifications High speed, high torque, 6-pole brushless motor 1880 rpm/volt (Kv) 11.1 Volts (from battery) 20868 rpm Torque = 0.00824 ft-lb hp = 0.033

Still require pressure regulator and hose extensions Received Parts Cooling system Plumbing connections Thermocouples Still require pressure regulator and hose extensions

Received Parts

Motor shaft diameter = 2.5 mm Dyno shaft diameter = 12 mm Coupler Design Motor shaft diameter = 2.5 mm Dyno shaft diameter = 12 mm Set screw diameter = 4 mm Keyway length = 4 mm Slippage on motor side might be an issue Developing back up design which will utilize the propeller mount coupler in order to increase the contact surface area

Coupler Design

Next Steps - Mechanical Begin motor mount design Finalize coupler design Calculate power characteristics of propeller Receive procured parts Socket head screw caps, calipers

Altera DE2 Programming Board Features: Cyclone II based 475 user I/O pins Possible 33,000 logic elements I/O Devices: Blaster USB in; USB 2.0 RS232 10/100 Ethernet PS/2 mouse or keyboard Infrared port 18 toggle switches / four debounced push-button switches 18 red LEDs / 9 green LEDs Quartus II software package

Altera DE2 FPGA

Hall-Effect Sensor Use: Shunt resistor OK for scope of project Prefers use of hall-effect sensor Construction: Dr. Taylor looking for existing one Will provide materials if does not find one Requires us to build it

Updated REMOTEC Design