The fundamental principle of electromagnetism is that an electric current will create a magnetic field at…
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Sensors used to measure vibration come in three basic types: displacement, velocity, and acceleration.…
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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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Pipe is a hollow structure designed to provide an enclosed pathway for fluids to flow, usually manufactured…
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Classical mechanics (often called Newtonian mechanics in honor of Isaac Newton) deal with forces and motions…
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Every flow-measuring instrument exploits a physical principle to measure the flow rate of fluid stream.…
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The following collection of photographs chronicles the complete disassembly of a Fisher E-body globe valve…
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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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(Will be addressed in future versions of this book)
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Visualizing the actions of P, I, and D tuning parameters using graphs is extremely useful in predicting the…
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The purpose of a control valve actuator is to provide the motive force to operate a valve mechanism. Both…
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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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As defined previously, calibration means the comparison and adjustment (if necessary) of an instrument’s…
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To summarize some of the key points and concepts for teaching: Do not waste class time transmitting facts to…
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Control strategies such as cascade, ratio, feedforward, and those containing limit and selector functions can…
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The digital multimeter (DMM) is quite possibly the most useful tool in the instrument technician’s…
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Diagnostic ability is arguably the most difficult skill to develop within a student, and also the most…
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A unique form of technical diagram for describing the abstract functions comprising a control system (e.g. PID…
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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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An electromechanical relay is an electrical switch actuated by an electromagnet coil. As switching devices,…
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