When I began teaching full-time in 1998, most of what I thought I understood about good teaching was actually…
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A very common method for directly controlling low flow rates of fluids is to use a device known as a metering…
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An important performance parameter for transmitter instruments is something often referred to as turndown or…
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Some problem-solving techniques are unique to quantitative problems, involving mathematical calculations. In…
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Self-balancing mechanisms consisting solely of a baffle/nozzle detector coupled to a feedback bellows, while…
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A technological advance introduced in the late 1980’s was HART, an acronym standing for Highway…
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To review, voltage is the measure of potential energy available to electric charges. Current is the uniform…
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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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Self-balancing pneumatic instrument mechanisms are very similar to negative-feedback operational amplifier…
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In modern industry, the most popular form of field-level signal transmission for variable industrial…
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A much simpler alternative to continuous vibration sensors (displacement or acceleration) and monitoring…
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DC electric current signals may also be used to communicate process measurement information from transmitters…
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Circuit breakers used in residential, commercial, and light industrial service are self-tripping devices: they…
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Temperature measurement devices may be classified into two broad types: contact and non-contact. Contact-type…
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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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Area refers to the size of two-dimensional surface. Volume refers to the size of a three-dimensional space. To…
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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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All masses require force to accelerate (we can also think of this in terms of the mass generating a reaction…
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Calculus has a reputation for being difficult to learn, and with good reason. The traditional approach to…
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Many traditional flowmeter technologies respond to the volumetric flow rate of the moving fluid.…
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