Contents
1. Introduction
2. Motor principles
2.1. Back EMF
2.2. Torque
2.3. Current
2.4. Speed
2.5. Power and efficiency
2.6. Characteristic graphs
3. Testing
3.1. Stall torque
3.2. Maximum speed
3.2. Motor resistance
3.3.1. Low resistance meter
3.3.2. Load in series
3.3.3. Clamp meter
4. Links
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Printable version
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