Ziegler-Nichols Closed-Loop Method (Ultimate Gain)
Closed-loop refers to the operation of a control system with the controlling device in “automatic” mode, where the flow of the information from sensing element to transmitter to controller to…
Heuristic PID Tuning Method
Heuristic PID Tuning Method In contrast to quantitative tuning procedures where definite numerical values for P, I, and D controller settings are obtained through data collection and analysis, a heuristic…
Quantitative PID tuning procedures
A quantitative PID tuning procedure is a step-by-step approach leading directly to a set of numerical values to be used in a PID controller. These procedures may be split into…
How ANSI Class Relates to PSI ?
Take a look through our website and you’ll see most of our pressure ratings are expressed as PSI - pounds per square inch. In this article, we’d like to talk…
NPT Connection Measurement Size
A 1/4” NPT connection size doesn’t have the 1/4” measurements where you think they would be. In fact, the connection’s outside diameter measures a little more than 1/2" wide. Did…
What is a Y Strainer ?
Y-strainers find their ways into all kinds of applications – including food preparation, cosmetics, diesel engines, and the petroleum industry. Y Strainer : Y-Strainers can be installed horizontally or vertically with…
AC Motor Speed Control
AC induction motors are based on the principle of a rotating magnetic field produced by a set of stationary windings (called stator windings) energized by AC power of different phases.…
DC Motor Speed Control
DC electric motors generate torque by a reaction between two magnetic fields: one field established by stationary “field” windings (coils), and the other by windings in the rotating armature. Some…
Industrial Instrumentation Questions & Answers
Industrial Instrumentation Questions & Answers Measurement of Force, Torque & Speed What is a Stroboscope ? The stroboscope is a simple, portable manually operated device which may be used for…
What we need to Know before Tune a PID Controller ?
We know the benefits of robust PID control Tuning. Increased productivity, decreased equipment strain, and increased process safety are some of the advantages touted of proper PID tuning. What is…
