Steam boilers are very common in industry, principally because steam power is so useful. Common uses for steam…
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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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The term “grid” refers to the conductors and equipment interconnecting power sources to power…
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Classical mechanics (often called Newtonian mechanics in honor of Isaac Newton) deal with forces and motions…
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Creative Commons Attribution 4.0 International Public License By exercising the Licensed Rights (defined…
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Some analyzers measure the composition of a process stream by directly immersing the sensing element in that…
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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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Sometimes we encounter a diversity of instrument signal standards in one control system. Such is the case with…
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A fundamental principle in instrumentation system troubleshooting is that every instrument has at least one…
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The following collection of photographs chronicles the complete disassembly of a Fisher E-body globe valve…
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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 limit switch detects the physical motion of an object by direct contact with that object. An example of a…
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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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Electromechanical relays may be connected together to perform logic and control functions, acting as logic…
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Imagine a liquid-level control system for a vessel, where the position of a level-sensing float sets the…
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A control strategy similar to ratio control is relation control. This is similar to ratio control in that a…
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DC electric motors generate torque by a reaction between two magnetic fields: one field established by…
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The two “process variables” we rely on most heavily in the field of electrical measurement and…
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Take for instance the problem of measuring fluid flow through a pipe. To the layperson, this may seem to be a…
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