Chapter 6

Question 1

What is a sensor

Answer 1

Device that converts physical stimulus into more convenient form for measuring

Question 2

Difference between analog and discrete sensor

Answer 2

Discrete:only certain values like binary or digital
Analog: continuous analog signal

Question 3

Difference between active and passive sensor

Answer 3

Active:responds to stimulus without the need for power
Passive: requires an external source of power

Question 4

What is an acuator

Answer 4

A hardware device that converts controller command signal change into a change in a physical parameter

Question 5

3 categories of acuators

Answer 5

1. Electric
2. Pneumatic
3. Hydraulic

Question 6

2 main components of an electric motor

Answer 6

1. stator: stationary component

2. rotor:

Question 7

DC Motor what is a commutator

Answer 7

rotary switching device which rotates with the rotor and picks up current from a set of brushes that are apart of stator

Question 8

3 mechanical ways to convert rotary to linear motion

Answer 8

1. Leadscrew
2. Pulley Systems
3. Rack and Pinion

Question 9

What is a solonoid

Answer 9

consists of a moveable plunger inside a stationary coil of wire