RTDs are completely passive sensing elements, requiring the application of an externally-sourced electric…
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A positive displacement flowmeter is a cyclic mechanism built to pass a fixed volume of fluid through with…
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A machine in the broad sense of the word is any device designed to translate some form of energy into useful…
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The fundamental principle of electromagnetism is that an electric current will create a magnetic field at…
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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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An exciting development in industrial instrumentation is the WirelessHART radio communication standard,…
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Atom: the smallest unit of matter that may be isolated by chemical means. Particle: a part of an atom,…
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Finally, we arrive at the loop diagram (sometimes called a loop sheet) for the compressor surge control system…
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In addition to Ohm’s Law, we have a set of rules describing how voltages, currents, and resistances…
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Valve actuators provide force to move control valve trim. For precise positioning of a control valve, there…
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These fortifications focus on human behavior rather than system design or component selection. In some ways…
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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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Calculus. Few areas of mathematics are as powerfully useful in describing and analyzing the physical…
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I remember first learning about the world-wide Internet, and wondering what it actually looked like. The first…
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To better understand the design and operation of self-balancing pneumatic mechanisms, it is helpful to examine…
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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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The very purpose of physics is to quantitatively describe and explain the physical world in as few terms as…
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At the root of successful system diagnosis is a rigorous adherence to scientific reasoning. There exists no…
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Capacitors store energy in electric fields, proportional to the square of voltage. Inductors store energy in…
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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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