This section shows some of the many instrument symbols found in different types of technical diagrams used to…
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Lipták, Béla G. et al., Instrument Engineers’ Handbook – Process Measurement and Analysis Volume I,…
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To show a practical process example, let’s examine three diagrams for a compressor control system,…
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Perhaps the most important rule of controller tuning is to know the process before attempting to adjust the…
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A simple control system drawn in block diagram form looks like this: Information from the measuring device…
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Imagine a major marathon race, where hundreds of runners gather in one place to compete. When the starting gun…
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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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A limitation inherent to pneumatic valve actuators is the amount of air flow required to or from the actuator…
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Three-phase AC is the dominant mode of electric power generation and distribution in modern societies.…
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As we have seen, the concept of differentiation is finding the rate-of-change of one variable compared to…
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Creative Commons Attribution 4.0 International Public License By exercising the Licensed Rights (defined…
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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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The following collection of photographs chronicles the complete disassembly of a Fisher E-body globe valve…
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Imagine a liquid-level control system for a vessel, where the position of a level-sensing float directly sets…
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An interesting parallel to the “unity fraction” unit conversion technique is something referred to…
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There are several different methods useful for causing an AC induction motor to brake, or slow down: DC…
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The fundamental principle of electromagnetism is that an electric current will create a magnetic field at…
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At the root of successful system diagnosis is a rigorous adherence to scientific reasoning. There exists no…
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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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Learning is not merely a process of information transfer. It is first and foremost a transformation of…
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