Gradus I, a angulo de stepper motricium, stepper motor stator curvis cuiusque mutatio current status, angulus rotor conversus dixit spatium angulus. Rotor, the more the number of steps away from the smaller Angle of stator phase number, the more the more step away from the smaller the Angle of the tempo of way to power, step away from the Angle of the smaller type: in the stator phase number m - Z - rotor teeth C - modes: C = 1 single phase electricity in turn, bipolar modes in turn C = 2 modes in turn single or double phase 2, the related conclusion (1), the Imperium initus ad numerum pulsu stepper motricium potest control angulari obsessio de stepper motricium; Dictio, Imperium input ad pulsus frequency de stepper motor potest control gradus motricium celeritate; (III), in potestate gradum motricium stator curva current ordinis potest control in stepper motor motor directionem. III, in necessitudinem inter torque et gyratorius celeritate celeritas formula: n = LX f / p (celeritate, f = potentiam frequency, n = p polus Logarithmica) Torque, Gyratorium torque mechanica elementum, ut gyratorium torque mechanica elementum est gyratorius Mechanica components sub actione torque erit producendum quaedam gradu de torsione deformatio, ita torque est aliquando vocatur a torque. Torque formula: T = 9550 p/nT is torque, unit N· MP is the output power, the unit KWn is the motor speed, unit of r/min specific relationship is derived as follows: 1)Power = force * speed: P = F * V formula 12)Torque (T)= torsion (F)* action radius (R)Namely: T = F * R by type, can launch F = T/R formula 23)Linear velocity (V)= 2πR * speed per second (N seconds)= 2πEach speed (R *N)/ 60 =πR * n / 30 formula 3 will formula 2, 3 in formula 1: aP = F * V = (T/R )* (πR * n / 30)= (π/ 30)W * T * P = n points of power units, T = Nm torque unit, unit of n points = RPM RPM if P unit for KW, so is the following Formula: P * M = & Pi; / XXX * T * 30000 / π * P = T * N30000 / III. (MCDXV) CMXXVI * p = T * N9549. CCXCVII * p = T * n