Regulating the electric power sent to an electric motor is a task performed by high-speed switching…
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Non-dispersive analysis, while newer in discovery than dispersive analysis (Isaac Newton’s 17th-century…
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Several different technologies exist for the conversion of fluid pressure into an electrical signal response.…
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The simple PLC ladder diagram (LD) commands consist of contacts and coils, arranged in sequences that mimic…
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An variable-area flowmeter is one where the fluid must pass through a restriction whose area increases with…
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In contrast to quantitative tuning procedures where definite numerical values for P, I, and D controller…
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The final step in treating wastewater before releasing it into the natural environment is to kill any harmful…
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A great many chemical composition measurements may be made indirectly by means of electricity, if those…
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A unique form of differential pressure-based flow measurement deserves its own section in this flow…
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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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All masses require force to accelerate (we can also think of this in terms of the mass generating a reaction…
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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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A very simple device used to measure pressure is the manometer: a fluid-filled tube where an applied gas…
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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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Since we often use electricity to convey energy from one location to another, it is important to be able to…
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“As to methods there may be a million and then some, but principles are few. The man who grasps…
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Control strategies such as cascade, ratio, feedforward, and those containing limit and selector functions can…
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Given the ability of pressurized fluids to transmit force over long distances, it is not surprising that many…
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Another category of control strategies involves the use of signal relays or function blocks with the ability…
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A fundamental limitation of proportional control has to do with its response to changes in setpoint and…
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