Control valves are supposed to deliver reliable, repeatable control of process fluid flow rate over a wide…
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Up until this point, we have explored various types of instrumentation diagram, each one making reference to…
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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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In order for any PID controller to be practical, it must be able to do more than just implement the PID…
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Capacitors store energy in electric fields, proportional to the square of voltage. Inductors store energy in…
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Tube, like pipe, is a hollow structure designed to provide an enclosed pathway for fluids to flow. In the case…
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Data-processing modules within FF systems are known as function blocks. Sometimes these blocks serve merely to…
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Abdelaziz, Ahmed (June 2014) Identified numerous typographical errors throughout the book, mostly repeated…
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Some analyzers measure the composition of a process stream by directly immersing the sensing element in that…
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The following animation shows a rotating phasor in three-dimensional form. The phasor rotates in a complex…
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Some self-powered (4-wire) analog electronic transmitters are designed to behave as electrical loads rather…
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As discussed at the beginning of this chapter, instrumentation safety may be broadly divided into two…
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Two extremely important principles in electric circuits were codified by Gustav Robert Kirchhoff in the year…
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A great many chemical composition measurements may be made indirectly by means of electricity, if those…
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As we have seen, feedforward control is a way to improve the stability of a feedback control system in the…
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Measuring the flow rate of liquid through an open channel is not unlike measuring the flow rate of a liquid…
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A flow switch is one that detects the flow of some fluid through a pipe. Flow switches often use…
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Calculus has a reputation for being difficult to learn, and with good reason. The traditional approach to…
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All substances are comprised of various elements in various combinations and proportions. Elements may thus be…
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Learning from reading printed text is a kind of problem-solving activity it is own right. The problem is how…
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