Measuring the flow rate of liquid through an open channel is not…
There is much to be said for neatness of assembly in electrical signal…
A technological advance introduced in the late 1980’s was HART,…
A control strategy similar to ratio control is relation control. This…
Learning PLC programming is a very important skill. If your job…
Temperature measurement devices may be classified into two broad…
A pneumatic controller receives a process variable (PV) signal as a…
Some of the simplest types of digital communication networks found in…
One of the most common, and most useful, pressure measuring…
Valve actuators provide force to move control valve trim. For precise…
Learning from reading printed text is a kind of problem-solving…
First, let us review some of the properties of differentials and…
The electrical conductivity of liquids is an important analytical…
Recall that an exothermic chemical reaction is one that releases a net…
A positive displacement flowmeter is a cyclic mechanism built to pass…
Using filter cells to eliminate wavelengths associated with…
Any physical location in an industrial facility harboring the…
Electrical power grids primarily consist of three-phase AC circuits.…
To show a practical process example, let’s examine three…
To show a practical process example, let’s examine three…
Control strategies such as cascade, ratio, feedforward, and those…
As discussed at the beginning of this chapter, instrumentation safety…
As we have seen, feedforward control is a way to improve the stability…
(Will be addressed in future versions of this book)
Two extremely important principles in electric circuits were codified…
An engineer named Bob Metcalfe conceived the idea of Ethernet in 1973,…
The key to understanding how three-phase electric motors work is to…
Temperature measurement devices may be classified into two broad…
Regardless of valve type, all stem-actuated control valves require…
The final step in treating wastewater before releasing it into the…
Imagine a liquid-level control system for a vessel, where the position…
Given the ability of pressurized fluids to transmit force over long…
A limitation inherent to pneumatic valve actuators is the amount of…
Earlier in this chapter you were shown a model of a nitrogen atom with…
As defined previously, calibration means the comparison and adjustment…
A positive displacement flowmeter is a cyclic mechanism built to pass…
Atom: the smallest unit of matter that may be isolated by chemical…
A proximity switch is one detecting the proximity (closeness) of some…
The three “elementary” particles of matter comprising all…
