s sa sb sc sd se sf sg sh si sj sk sl sm sn so sp sq sr ss st su sv sw sy

Перевод: stator

статор

Тезаурус:

1. The same stack is excited at the beginning and end of the sequence and if the stator and rotor teeth are aligned in this stack the rotor must have moved one tooth pitch.
2. Positional accuracy is achieved by means of the equal numbers of teeth on the stator and rotor, which tend to align so as to reduce the reluctance of the stack magnetic circuit.
3. In the position where rotor and stator teeth are fully aligned, as in stack A of Fig.1.3(b), the reluctance of the main flux path is at its minimum value.
4. The portico formed part of a complex of buildings linking the temple of Juno Regina, restored by Metellus, and the temple of Jupiter Stator, possibly the first marble temple in Rome, designed by the Greek architect Hermodorus of Salamis in Cyprus at the invitation of Metellus.
5. In the position where the stator and rotor teeth are fully aligned the circuit reluctance is minimised and the magnetic flux in the stack is at its maximum value.
6. The complete magnetic circuit for each stack is from one stator pole, across the air-gap into the rotor, through the rotor, across the air-gap into an adjacent pole, through this pole, returning to the original pole via the back-iron.
7. The stator of each stack has a number of poles Fig.l.3(b) shows an example with four poles - and a part of the phase winding is wound around each pole to produce a radial magnetic field in the pole.
8. Each stack includes a stationary element ( stator), held in position by the outer casing of the motor, and a rotating element.
9. For low values of current ill the pole windings the flux density in the stator/rotor iron is small and the reluctance of these parts of the flux path is much less than the reluctance of the air-gap between the stator and rotor teeth.
10. The stepping motor shown in Fig. 1.3(b) has eight stator/rotor teeth and is in the position corresponding to excitation of stack A. looking along the axial length of the motor the rotor teeth in each stack are aligned, whereas the stator teeth have different relative orientations between stacks, so in stacks and G the stator and rotor teeth are not fully aligned.
11. Another step in the clockwise direction can be produced by removing the excitation of stack B and exciting stack G. The final step of the sequence is to return the excitation to stack A. Again the stator and rotor teeth in stack A are fully aligned, except that the rotor has moved one rotor tooth pitch, i.e. the angle between adjacent rotor teeth defined in Fig.l .3(b).
12. Both stator and rotor are constructed from iron, which is usually laminated so that magnetic fields within the motor can change rapidly without causing excessive eddy current losses.