Control System
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Level Control Valve with Altitude Pilot
Introduction This type of level control valve is a hydraulically controlled diaphragm-operated automatic control valve that closes to a preset…
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What is Supervisory control?
Introduction There are a lots of control sytems like cascade control ,feedback control,feedforward control,split controls etc used in the process…
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Continuous control mode- P, PD, PI & PID control modes
The control actions most commonly used in process control are one or a combination of the continuous process controller mode.…
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Recoders are device used to record and store data into paper or any other reading device. Industrial recorders monitor the changes…
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DIFFERENCE BETWEEN FEEDBACK AND FEEDFORWARD CONTROL LOOPS
INTRODUCTION There are so many control loops in the industries nowadays.In this session we are going to discuss about difference…
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WHAT IS RATIO CONTROL ?
RATIO CONTROL A ratio controller is a special type of feed forward controller where disturbances are measured and their ratio…
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what is cascade control?
A simple control system drawn in block diagram form looks like this: Information from the measuring device (e.g. transmitter)…
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BASICS OF ON/OFF CONTROLLER
Introduction In control theory, an on/off controller, also known as a hysteresis controller, is a feedback controller that switches abruptly…
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BASIC CONTROL PRINCIPLES
INTRODUCTION Control of the processes in the plant is an essential part of the plant operation.The level of the boiler…
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Working of control valve
Introduction The control valve is a controlled device that regulates the flow of a liquid or gas in a system.…
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