Deck 18: Hall Effect Sensors

Question 1

If the polarity of the magnetic field is reversed, the current path is deflected in the opposite direction.

Answer 1

True

Question 2

Hall originally used a piece of pure gold to produce the Hall effect, but today a piece of ____________________ material is used instead.

Answer 2

semiconductor

Question 3

Hall generators have moving parts and contacts that wear out.

Answer 3

False

Question 4

How can a Hall generator be used in a manner similar to a limit switch?

Question 5

A Hall generator is not affected by dirt, oil, or vibration.

Question 6

____________________ are designed to produce an output voltage that is proportional to the strength of a magnetic field.

Question 7

A(n) ____________________ is a ferrous metal disk used to shunt a magnetic field away from some other object.

Question 8

Figure 18-06



In the accompanying diagram, when the solid metal part of the disk is between the sensor and magnet, the ____________________ is shunted away from the sensor.

Question 9

Figure 18-02


In the accompanying figure, what is being shown?

Question 10

Position sensors have the ability to sense the intensity of the magnetic field.

Question 11

Hall effect linear transducers can be obtained that have two types of outputs. What are they?

Question 12

The Hall generator can be used to measure the speed of a rotating device.

Question 13

Describe how the Hall effect is produced using the Hall generator.

Question 14

Figure 18-06



In the accompanying diagram, when the notch is between the sensor and the magnet, a(n) ____________________ is produced by the Hall generator.

Question 15

The amount of voltage produced by the Hall generator is determined by what two things?