RTDs are completely passive sensing elements, requiring the application of an externally-sourced electric…
Textbook
RTDs are completely passive sensing elements, requiring the application of an externally-sourced electric…
Textbook
Control valves are supposed to deliver reliable, repeatable control of process fluid flow rate over a wide…
Textbook
So far we have just looked at instruments that sense, control, and influence process variables. Transmitters,…
Textbook
A great many chemical composition measurements may be made indirectly by means of electricity, if those…
Textbook
Regulating the electric power sent to an electric motor is a task performed by high-speed switching…
Textbook
In this section I will show screenshots from a process loop simulation program illustrating the effectiveness…
Textbook
Self-balancing pneumatic instrument mechanisms are very similar to negative-feedback operational amplifier…
Textbook
A number of different sensors used in instrumentation generate DC voltage signals proportional to the process…
Textbook
Three-phase AC is the dominant mode of electric power generation and distribution in modern societies.…
Textbook
A chemical reaction resulting in a net release of energy is called exothermic. Conversely, a chemical reaction…
Textbook
At the root of successful system diagnosis is a rigorous adherence to scientific reasoning. There exists no…
Textbook
Tube, like pipe, is a hollow structure designed to provide an enclosed pathway for fluids to flow. In the case…
Textbook
Nearly every technical course teaches and tests students on definitions, basic concepts, and at least some…
Textbook
The following collection of photographs chronicles the complete disassembly of a Fisher E-body globe valve…
Textbook
Perhaps the most basic and necessary protective relay function is overcurrent: commanding a circuit breaker to…
Textbook
Imagine a liquid-level control system for a vessel, where the position of a level-sensing float sets the…
Textbook
An electric motor is often used as a discrete control element in a control system if driving a pump, conveyor…
Textbook
“Radio” systems use electromagnetic fields to communicate information over long distances through…
Textbook
Converting between disparate units of measurement is the bane of many science students. The problem is worse…
Textbook
The two “process variables” we rely on most heavily in the field of electrical measurement and…
Textbook
The key to understanding how three-phase electric motors work is to have an accurate mental picture of the…
Textbook
Facebook
Google
GitHub
Linkedin