Solids tend to expand when heated. The amount that a solid sample will expand with increased temperature…
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A fluid is any substance having the ability to flow: to freely change shape and move under the influence of a…
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Lipták, Béla G. et al., Instrument Engineers’ Handbook – Process Measurement and Analysis Volume I,…
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A level switch is one detecting the level of liquid or solid (granules or powder) in a vessel. Level switches…
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The following animation shows how the “rotating” magnetic field of a three-phase AC induction…
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Mechanical pressure-sensing elements include the bellows, the diaphragm, and the bourdon tube. Each of these…
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Linearity of Measurement Instruments The purpose of calibration is to ensure the input and output of an…
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Level gauges are perhaps the simplest indicating instrument for liquid level in a vessel. They are often found…
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Light is known to interact with matter in very specific ways, which may be exploited as a means of measuring…
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Converting between disparate units of measurement is the bane of many science students. The problem is worse…
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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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While the term “probability” may evoke images of imprecision, probability is in fact an exact…
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An important legacy technology for all kinds of continuous measurement is the self-balancing system. A…
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One of the marks of a successful problem-solver is a habit of applying general principles to every new problem…
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Control valves are supposed to deliver reliable, repeatable control of process fluid flow rate over a wide…
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The majority of flowmeter technologies operate on the principle of interpreting fluid flow based on the…
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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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Creative Commons Attribution 4.0 International Public License By exercising the Licensed Rights (defined…
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Much has been written about the benefits of robust PID control. Increased productivity, decreased equipment…
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These fortifications focus on human behavior rather than system design or component selection. In some ways…
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It is often useful to express the amplitude of an alternating quantity such as voltage or current in terms…
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