Linearity of Measurement Instruments The purpose of calibration is to ensure the input and output of an…
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The majority of flowmeter technologies operate on the principle of interpreting fluid flow based on the…
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Negative feedback systems, in general, tend to cause confusion for those first learning their fundamental…
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Solids tend to expand when heated. The amount that a solid sample will expand with increased temperature…
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An electromechanical relay is an electrical switch actuated by an electromagnet coil. As switching devices,…
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Disturbances in the liquid tend to complicate liquid level measurement. These disturbances may result from…
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A completely different way of measuring liquid level in vessels is to bounce a traveling wave off the surface…
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Filled-bulb systems exploit the principle of fluid expansion to measure temperature. If a fluid is enclosed in…
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Abdelaziz, Ahmed (June 2014) Identified numerous typographical errors throughout the book, mostly repeated…
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The advent of “smart” field instruments containing microprocessors has been a great advance for…
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Programmable logic controllers are essentially nothing more than special-purpose, industrial computers. As…
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Since we often use electricity to convey energy from one location to another, it is important to be able to…
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A very simple device used to measure pressure is the manometer: a fluid-filled tube where an applied gas…
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(Will be addressed in future versions of this book)
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DC electric current signals may also be used to communicate process measurement information from transmitters…
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Volumes could be written about poor diagnostic technique. The following mistakes are not intended to comprise…
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A sliding-stem valve body is one where the moving parts slide with a linear motion. Some examples of…
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An exciting development in industrial instrumentation is the WirelessHART radio communication standard,…
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A different strategy for controlling the flow of fluid is to insert a rotary element into the flow path.…
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Suppose we wished to measure the consumption of propane over time for a large propane storage tank supplying a…
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