ENGR415

1
Dynamic System

• Black box with inputs and outputs.
• We are only interested in the relationship
  Input-gtOutput
• Inputs variables that modify the behavior of the
  system.
• Control inputs input variables that can be
  modified
• Disturbances input variables that we cannot
  modify
• Outputs variables that we want to control. Its
  value depends on the system characteristics and
  the input values

2
Measuring System
3
Control System
4
Control System the problem
5
Control System Open loop
6
Control System Closed loop
7
Control System
Disturbances
Inputs
Outputs
ACTUATORS
SYSTEM
CONTROLLER
SENSORS
Control area
Operation area
8
Control System
9
Control System simple example
10
Control System shaft speed control
11
Sequential Control
12
SENSORS and TRANSDUCERS
13
Measuring System
14
Proximity Sensors Proximity Switches
15
Proximity Sensors Inductive

16
Proximity Sensors Optical

Emitter
Mirror
Receptor
17
Proximity Sensors Applications
18
Proximity Sensors Reed sensors
19
Proximity Sensors Reed sensors
20
Position Sensors Potentiometer
21
Position Sensors Hall effect
22
Position Sensors Hall effect
23
Position Sensors Encoders Incremental
24
Position Sensors Encoders Absolute
25
Position/presence Sensors Pyroelectric
26
Position/presence Sensors Pyroelectric
27
Position/Displacement Sensors Linear Variable
Differential Transformer
28
Position/Displacement Sensors Linear Variable
Differential Transformer
29
Position/Displacement Sensors Strain Gauge
30
Position/Displacement Sensors Strain Gauge
31
Speed Sensors Tachogenerators
32
Speed Sensors Tachogenerators
33
Force Sensors Strain gauge load cell
34
Pressure
35
Pressure
36
Pressure
37
Pressure
38
Pressure
39
Accelerometer
40
Flow
41
Flow
42
Level
43
Temperature
44
Temperature
45
Temperature
46
Temperature
47
Motion Detector Pyroelectric material
48
Motion Detector Pyroelectric effect
49
Motion Detector Pyroelectric sensor
50
Motion Detector Pyroelectric sensor
51
Position/Displacement Sensors Rotary Variable
Differential Transformer RVDT
52
Position/Displacement Sensors Rotary Variable
Differential Transformer RVDT
53
Position/Displacement Sensors Rotary Variable
Differential Transformer RVDT
54
Position/Displacement Sensors Synchromechanism
55
Position/Displacement Sensors Synchro pair.
CX-CR
56
Position/Displacement Sensors Synchro. CX-CR
pair
57
Position/Displacement Sensors Synchro. CX-CR
pair
58
Position/Displacement Sensors Synchro pair.
Control transformer
59
Position/Displacement Sensors Synchro. Control
transformer
60
Position/Displacement Sensors Resolver
61
Position/Displacement Sensors Resolver