# Applied Marine Control and Automation

#### Course Topics

• Introduction to control systems
• Concepts of feedback
• Effects of feedback
• Objectives of control systems
• Definition of linear and non linear systems
• Elementary concepts of sensitivity and robustness
• Types of control systems
• Mathematical model long of dynamic systems
• Electrical analogy of mechanical systems
• Transfer function
• Block diagram
• Block diagram algebra
• Block diagram reduction
• Signal flow graph
• Signal flow graph problems
• Time domain analysis
• Frequency domain analysis
• Stability of linear second order control systems
• Measuring sensors
• Pressure measuring devices
• Temperature measuring devices
• Flow measuring devices
• Level measuring devices
• Electrical tachometer
• Mechanical tachometer
• Salinity indicator
• Oil in water monitor
• Viscosity sensors
• Oil mist detector
• Flaw detector
• Photoelectric cells
• Photo conductive cells
• Photovoltaic cells
• Servomotor
• Electrical servomotor
• Hydraulic servomotor
• Control Units - Introduction 1
• Control Units- Introduction 2
• Control Units- valve terminology
• Control Units- Valve terminology 2
• Control Units
• Control Units- Control Valve
• Control Units- Actuators 2
• Controol Units- Actuator types
• Control Units- Piston Actuator 1
• Control Units- Piston valve 2
• Control Units - Rotary Actuator
• Control Units - DA and IDA
• Control Units- Working diagram of IDA
• Control Unit- Valve action and Actuator action
• Control Unit- Electric Actuator
• Control Unit- Electric Actuator 2
• Control Units - Valve Positioner 1
• Control Units- Valve Positioner 2
• Control Units - Valve Positioner 3
• Control Units - Valve positioner 4
• Control Units - Valve Positioner 5
• Control Units - Valve positioner 6
• Control Units - Valve Posiiioner 7
• Controllers- Electro pneumatic 1
• Controllers- Electro pneumatic 2
• Controller - Electro pneumatic 3
• Controller- EH -1
• Controller - EH 2
• Controller - EH 3
• Controller- EH 4
• Controllers- EH 5
• Synchros 1
• Synchros 2
• Synchros 3
• Synchro 5
• Sunchro 6
• Synchro 7
• Synchro 8
• Synchro 9
• Synchro 10
• Synchro 11
• Capacitive Transducers 1
• Capacitive Transducers 2
• Capacitive transducers 3
• Capacitive Transducers 4
• Capacitive Transducers 5
• Variable Inductance 1
• Variable Inductance 2
• Variable Inductance 3
• Variable Inductance 4
• Variable Inductance-5
• Choice of Electrical Transmission Signals 1
• Choice of Electrical Transmission Signals 2
• Pneumatic Controllers 1
• Pneumatic Controllers 2
• Pneumatic Controllers 3
• Pneumatic Controllers 4
• Pneumatic Controller 5
• Pneumatic Controllers 6
• Pneumatic Controllers 7
• Pneumatic Controller 8
• Pneumatic Controller 9
• Pneumatic Controllers 10

#### Introduction to control systems

In control system and automation we are going to acquire the knowledge  about automation and control engineering in ships.

CONTROL SYSTEM:

A control system is a system, which provides the desired response by controlling the output. The following figure shows the simple block diagram of a control system.

Here, the control system is represented by a single block. Since, the output is controlled by varying input, the control system got this name. We will vary this input with some mechanism. In the next section on open loop and closed loop control systems, we will study in detail about the blocks inside the control system and how to vary this input in order to get the desired response.

Examples − Traffic lights control system, washing machine

Traffic lights control system is an example of control system. Here, a sequence of input signal is applied to this control system and the output is one of the three lights that will be on for some duration of time. During this time, the other two lights will be off. Based on the traffic study at a particular junction, the on and off times of the lights can be determined. Accordingly, the input signal controls the output. So, the traffic lights control system operates on time basis.