DC Motor Test Stand

Simple DC motor test stand built in May 2008. Designed to collect data, in order to generate performance curves of small DC gear motors, to be used in robotics applications. Design elements involve power supply to measure voltage and current, an optical tachometer to measure rotational speed, a thermocouple and gauge to measure motor surface temperature, and a frictional deprony brake used to apply torque which is varied by tightening a clamp. The deprony bakes works by the principle depicted above. The reaction moment is measured by reading a force using a scale then multiplying by the moment arm of known length ten centimeters, design included fifteen centimeters moment arm to increase torque measurement range. This project contributed to later interests regarding electric vehicle motor testing.