AC induction motors are based on the principle of a rotating magnetic field produced by a set of stationary…
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A unique form of differential pressure-based flow measurement deserves its own section in this flow…
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As we have seen, the concept of integration is finding the accumulation of one variable multiplied by another…
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The final element of PID control is the “D” term, which stands for derivative. This is a calculus…
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The vast majority of modern process transmitters (both analog and digital) come equipped with a feature known…
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While the term “probability” may evoke images of imprecision, probability is in fact an exact…
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Using filter cells to eliminate wavelengths associated with interfering gases is called positive filtering in…
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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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The very purpose of physics is to quantitatively describe and explain the physical world in as few terms as…
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An electric motor is often used as a discrete control element in a control system if driving a pump, conveyor…
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Diagnostic ability is arguably the most difficult skill to develop within a student, and also the most…
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As previously defined, calibration refers to the checking and adjustment of an instrument so that its output…
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Pipe is a hollow structure designed to provide an enclosed pathway for fluids to flow, usually manufactured…
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Some problem-solving techniques are unique to quantitative problems, involving mathematical calculations. In…
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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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Finally, we arrive at the loop diagram (sometimes called a loop sheet) for the compressor surge control system…
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The following animation shows how a radio-energy pulse travels down and then up the waveguide of a guided-wave…
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A hand switch is exactly what the name implies: an electrical switch actuated by a person’s hand motion.…
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Circuit breakers used in residential, commercial, and light industrial service are self-tripping devices: they…
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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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