A pressure switch is one detecting the presence of fluid pressure. Pressure switches often use diaphragms or…
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A technological advance introduced in the late 1980’s was HART, an acronym standing for Highway…
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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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A form of protection against faults on long-distance power lines is called distance relaying, so named because…
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Valve actuators provide force to move control valve trim. For precise positioning of a control valve, there…
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Atom: the smallest unit of matter that may be isolated by chemical means. Particle: a part of an atom,…
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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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Non-dispersive analysis, while newer in discovery than dispersive analysis (Isaac Newton’s 17th-century…
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Many traditional flowmeter technologies respond to the volumetric flow rate of the moving fluid.…
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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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Learning PLC programming is a very important skill. If your job involves programming, then you will likely…
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Few areas of mathematics are as powerfully useful in describing and analyzing the physical world as calculus:…
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Those familiar with industrial instrumentation will find much within the electric power industry remarkably…
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Sensors used to measure vibration come in three basic types: displacement, velocity, and acceleration.…
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All substances are comprised of various elements in various combinations and proportions. Elements may thus be…
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Suppose we wished to measure the rate of propane gas flow through a hose to a torch: Flowmeters appropriate…
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The term “grid” refers to the conductors and equipment interconnecting power sources to power…
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A much simpler alternative to continuous vibration sensors (displacement or acceleration) and monitoring…
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The most popular form of signal transmission used in modern industrial instrumentation systems (as of this…
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Multiple accessories exist for pressure-sensing devices to function optimally in challenging process…
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