Sentence examples for commutator from inspiring English sources

Modern motors use electronic control systems rather than a commutator, but the principle is the same.A switched reluctance motor is like a normal modern motor in this respect it is also brushless.

When the rotor has turned about 120°, the connection from the supply to the armature coil is reversed by the commutator.

Permanent-magnet commutator motors have no provision for speed control when attached to a constant-voltage supply.

Normally, the available speed range is less than 2 to 1, but special motors can provide a speed range of up to 10 to 1. Another form of commutator motor is the series motor in which the field coils, with relatively few turns, carry the same current as does the armature.

This assists the quick reversal of current in the coil and prevents commutator sparking.

The professional terminology of modern theoretical physics owes much to Dirac, including the names and mathematical notations fermion, boson, observable, commutator, eigenfunction, delta-function, ℏ (for h/2π, where h is Planck's constant), and the bra-ket vector notation.

which are equal-time commutation relations, i.e., the commutators always refer to fields at the same time.

A specially designed series-commutator motor may be operated from a single-phase alternating voltage supply.

Mercury-type and commutator-type watt-hour meters measure power in direct-current circuits.

It is an induction motor with a squirrel-cage rotor (that is, solid conductors in the slots are shorted together by end rings), and it has no commutators or brushes and no mechanically contacting parts except bearings, so that it is much simpler to maintain and more reliable.

Direct current is produced by batteries, fuel cells, rectifiers, and generators with commutators.