Sample sizes of chemical substances are often measured in moles. One mole of a substance is defined as a…
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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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Virtually any mass above absolute zero temperature emits electromagnetic radiation (photons, or light) as a…
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Capacitive level instruments measure electrical capacitance of a conductive rod inserted vertically into a…
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A whole class of problem-solving techniques focuses on altering the given problem into a simpler form that is…
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Much of our knowledge about atomic structure comes from experimental data relating the interaction between…
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In the United States, the ANSI and IEEE organizations have standardized a set of numerical codes referring to…
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Disconnect Switches Disconnects are switches designed to isolate sections of a power system in case of damage…
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When I began teaching full-time in 1998, most of what I thought I understood about good teaching was actually…
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Two extremely important principles in electric circuits were codified by Gustav Robert Kirchhoff in the year…
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Learning how to tune PID controllers is a skill born of much practice. Regardless of how thoroughly you may…
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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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Many liquid substances undergo a process whereby their constituent molecules split into positively and…
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The Law of Mass Conservation states that matter can neither be created nor destroyed. The Law of Energy…
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A Safety Instrumented Function, or SIF, is one or more components designed to execute a specific…
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In order to provide an interface between the internal (digital) world of a computer and the external (analog)…
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Process measurements are often of an analog nature: the temperature of a furnace, the rate of fluid flow…
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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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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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