Feedback Control System Components Before we begin our discussion on process control, we must define a few key…
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A bridge circuit is basically a pair of voltage dividers where the circuit output is taken as the difference…
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(Will be addressed in future versions of this book)
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Abdelaziz, Ahmed (June 2014) Identified numerous typographical errors throughout the book, mostly repeated…
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Volumes could be written about poor diagnostic technique. The following mistakes are not intended to comprise…
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Much has been written about the benefits of robust PID control. Increased productivity, decreased equipment…
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Atom: the smallest unit of matter that may be isolated by chemical means. Particle: a part of an atom,…
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In our first signal characterization example, we tackle the problem of measuring fluid flow through a pipe. To…
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Shown here is a partial listing of principles applied in the subject matter of this chapter, given for the…
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Most people reading this book have likely had the experience of adjusting water temperature using two hand…
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Current is the name we give to the motion of electric charges from a point of high potential to a point of low…
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Given the ability of pressurized fluids to transmit force over long distances, it is not surprising that many…
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One of the fundamental laws of electric circuits is Kirchhoff’s Current Law, which states the algebraic…
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A wise PLC programmer once told me that the first thing any aspiring programmer should learn about the PLC…
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Several different technologies exist for the conversion of fluid pressure into an electrical signal response.…
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“As to methods there may be a million and then some, but principles are few. The man who grasps…
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Although analog electronic process controllers are considered a newer technology than pneumatic process…
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Light is known to interact with matter in very specific ways, which may be exploited as a means of measuring…
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Regardless of valve type, all stem-actuated control valves require some form of seal allowing motion of the…
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Many years ago, when I was first learning about electricity, I happened to discover a length of coaxial…
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