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commutator    
n. 换向器,整流器

换向器,整流器

commutator
换向器

commutator
整流器 换向器

commutator
n 1: switch for reversing the direction of an electric current


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  • What is a Commutator? - BYJUS
    What is a Commutator? Commutators are used in DC machines (DC motors and DC generators) universal motors In a motor, a commutator applies an electric current to the windings A steady rotating torque is produced by reversing the current direction in the rotating windings each half turn In a generator, the commutator reverses the current direction with each turn serving as a mechanical
  • Confusion about commutators - Mathematics Stack Exchange
    The definition of a commutator as $ [A,B]=AB-BA$ refers to an algebra, where we have an additive and a multiplicative structure The latter usually doesn't constitute a group
  • What is a commutator - Mathematics Stack Exchange
    The second way is to look at the commutator subgroup as a measure of how noncommutative a group is A group is commutative if it has a trivial commutator subgroup (and highly noncommutative if the commutator subgroup is the entire group)
  • Why is the commutator defined differently for groups and rings?
    The commutator of a group and a commutator of a ring, though similar, are fundamentally different, as you say In each case, however, the commutator measures the "extent" to which two elements fail to commute
  • How to show that the commutator subgroup is a normal subgroup
    The commutator subgroup is generated by commutators Show that the property of "being a commutator" is invariant under conjuation (in fact it is invariant under all automorphisms)
  • Relation between Jacobi identity, commutator, and derivation
    Here are some standard facts about these concept: The commutator satisifies the Jacobi identity The commutator of two derivations is a derivation The Jacobi identity is equivalent to $\\mathrm{ad
  • Commutator of $x$ and $p^2$ - Mathematics Stack Exchange
    Commutator of $x$ and $p^2$ Ask Question Asked 12 years, 6 months ago Modified 8 years, 10 months ago
  • What good is the Commutator product? - Mathematics Stack Exchange
    The common form of the Heisenberg Uncertainty Principle is a statement that the commutator of the momentum and position operators is not $0$ More generally, it gives explicit bounds on information based on the size of commutator relations (and if the commutator is $0$, then there might not be a limit)
  • What is commutator? Physics Q A - BYJUS
    A commutator is a piece of equipment linked to the armature of such a motor as well as a dynamo that makes an electrical linkage as well as guarantees the amount of current flowing via direct current Function of commutator It is being utilized to reverse the current at such a position as well as time to prevent the torque on such a DC motor from switching every other moment the coil goes





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