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Control System

Feedforward Control System

Feedforward A Feedforward control system measures a disturbance in variable, predicts its effect on the...
Control System

Cascade Control System

  Cascade In cascade control system two controllers are cascaded  to each other as shown in...
Control System

Ratio Control

Ratio Control In Ratio Control, the controlled variable is the ratio of two measured variables....
Control System

Common Control Loops

  Common Control Loop  1.Flow   Liquid flow processes are fast,  typically 0.5 sec response or less. Gas...
Analytical Instrumentation

What is pH meter ? How pH meter works?

pH meter A pH meter is an electronic device used for measuring pH(acidity or alkalinity)...
Control System

Derivative Or Rate Control

Derivative Control Derivative control (also called rate control) responds to the rate of change of...
Process Control

Process Control – Integral Control

Integral (or Reset) Control     Integral control (also called Reset control) can be used when unacceptable...
Temperature Measurement

What is an RTD ? How RTD works ? Advantages and Disadvantages of RTD?

  RTD Resistance Temperature detectors (RTDs) are sensors used to measure temperature. Generally greater stability,accuracy and repeatability...
Process Control

Process Control – Proportional Control

Proportional Control  In some processes, the fluctuations around the set point (called oscillation) may be...
Control System

Two-position control

With two-position control, the final control element may be in only one of two...
Control System

Instruments Used In Control Loop

Instruments  I hope you have a general understanding what a feedback control loop is, if not...
Instrumentation

Basics of Feedback Control – Elements of Feedback control

Feedback ControlFeed-back control is gathering information on the controlled variable and comparing it to...
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