To summarize some of the key points and concepts for teaching: Do not waste class time transmitting facts to…
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So far we have just looked at instruments that sense, control, and influence process variables. Transmitters,…
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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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Many traditional flowmeter technologies respond to the volumetric flow rate of the moving fluid.…
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To show a practical process example, let’s examine three diagrams for a compressor control system,…
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(Will be addressed in future versions of this book)
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A sliding-stem valve body is one where the moving parts slide with a linear motion. Some examples of…
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Light has long been used as a long-range signaling medium. While communication by light through open air is…
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In reliability engineering, it is important to be able to quantity the reliability (or conversely, the…
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Multiple accessories exist for pressure-sensing devices to function optimally in challenging process…
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A variety of problem-solving techniques have been presented for students over the years which are all helpful…
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“Polyphase” means “many phases,” describing a form of AC electrical system where…
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Binary patterns are not just able to represent numerical values. Given a standardized code, they may represent…
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At the next OSI Reference Model layer (layer 4) is a set of protocols specifying how reliable communication…
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The next level of detail is the Process and Instrument Diagram, or P&ID. Here, we see a “zooming…
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While 50 and 51 (instantaneous and time overcurrent) relay functions monitor line current magnitude and guard…
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The disadvantages of pneumatic instruments are painfully evident to anyone familiar with both pneumatic and…
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When a high-energy photon strikes an atom, it may eject one of the lower-level electrons from its shell,…
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(Will be addressed in future versions of this book)
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Nearly every technical course teaches and tests students on definitions, basic concepts, and at least some…
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