Where appropriate, these definitions conform to those appearing in NEMA MG7 and IEC Draft standards for servo motors.
Some characteristics change dramatically with temperature.
The definitions included in this section are keyed to coreless brush-type DC motors only and appear in the same order as they do on actual MicroMo data sheets for coreless motors. The units used are those most popular with the engineering community in North America. A full compilation of formulas can be found at the end of these notes. The nominal voltage applied to the motor at which all other characteristics are measured. The resistance measured across the motor leads, including brush contact resistance, with no commutator bars shorted.