The transformer is one of the most important components in all of AC circuitry. Principally used to…
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The term “grid” refers to the conductors and equipment interconnecting power sources to power…
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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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Most pneumatic instruments use a simple but highly sensitive mechanism for converting mechanical motion into…
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DC electric current signals may also be used to communicate process measurement information from transmitters…
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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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Solids tend to expand when heated. The amount that a solid sample will expand with increased temperature…
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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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A bridge circuit is basically a pair of voltage dividers where the circuit output is taken as the difference…
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Perhaps the most basic and necessary protective relay function is overcurrent: commanding a circuit breaker to…
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To understand just how different FOUNDATION Fieldbus is from other digital instrument systems, consider a…
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There is much to be said for neatness of assembly in electrical signal wiring. Even though the electrons…
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Sensors used to measure vibration come in three basic types: displacement, velocity, and acceleration.…
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The following animation shows how the “rotating” magnetic field of a three-phase AC induction…
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Fluid pressure exerts force on any surface area it contacts, as described by the formula \(F = PA\). One…
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The dispersion of visible light into its constituent colors goes all the way back to the 17th century with…
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Phasors are to AC circuit quantities as polarity is to DC circuit quantities: a way to express the…
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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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A unique form of differential pressure-based flow measurement deserves its own section in this flow…
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