Electromagnetism
an electromagnetic field is produced by this.
what is current through a conductor
The alternator component that becomes an electromagnet
What is the rotor
This is how to bench test the rotor
what is slip ring to slip ring resistance and continuity to the frame
the alternator requires this number of diodes per winding.
What are two diodes per winding.
It is controlled by low current to power a higher current component.
What is a relay
Materials that do not resist the passing of magnetic force are said to be ______?
what is Permeable
The alternator component that has voltage induced into it.
What is the stator
This is how to bench test the stator
what is winding to winding resistance and continuity to the frame
These deliver the current flow to the rotor.
What are carbon brushes.
It's core moves in a linear direction in reaction to a temporary electromagnetic field.
What is a solenoid.
An ignition coil uses this to generate higher voltage from low voltage
What is mutual induction
alternator component that takes AC and turns it to DC
What is the rectifier bridge
This is how to test a diode
what is forward bias and reverse bias the diode with a DMM
0.524v and O.L.
What are the results from a good diode, test.
It uses a permanent magnet and a reluctor wheel to generate an AC voltage signal.
What is a speed/position sensor.
the poles of an electromagnet can be reversed by doing this.
what is reverse the polarity of the current flow
This controls the output of the alternator
What is the regulator
This is how to do a voltage drop test on the positive side of the charging circuit.
What is DMM leads to positive battery post and B+ terminal at the alternator with KOER and accessories on. DMM set to measure volts DC.
Changing percentage of on time within a fixed frequency.
What is duty cycle.
This device can be, but is not always, cooled by antifreeze/coolant.
What is an alternator.
Current, an iron core, number of turns.
What are ways to increase the strength of a magnetic field
This is how AC is produced in an alternator
What is electromagnetic induction through the relative motion between the rotor's magnetic field and the windings of the stator
This is how to measure for AC ripple
What is DMM set to volts AC, with leads to B+ terminal at the alternator and the comm lead to ground.
Angle, Speed, Turns ratio.
What are ways to increase induced voltage
Materials that resist the passing of magnetic force are said to have high ______?
What is reluctance.