Those familiar with industrial instrumentation will find much within the electric power industry remarkably…
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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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I remember first learning about the world-wide Internet, and wondering what it actually looked like. The first…
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In November of 2007 a new computer virus was submitted to a virus scanning service. The purpose of this new…
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An electric motor is often used as a discrete control element in a control system if driving a pump, conveyor…
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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 limit switch detects the physical motion of an object by direct contact with that object. An example of 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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In the United States, the most common language used to program PLCs is Ladder Diagram (LD), also known as…
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One very convenient feature of waves is that their properties are universal. Waves of water in the ocean,…
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Self-balancing pneumatic instrument mechanisms are very similar to negative-feedback operational amplifier…
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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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An important legacy technology for all kinds of continuous measurement is the self-balancing system. A…
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A fluid is any substance having the ability to flow: to freely change shape and move under the influence of a…
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Any physical location in an industrial facility harboring the potential of explosion due to the presence of…
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Electrical power grids primarily consist of three-phase AC circuits. This means most power lines (transmission…
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Some problem-solving techniques are unique to quantitative problems, involving mathematical calculations. In…
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When control valves operate between fully open and fully shut, they serve much the same purpose in process…
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Most pneumatic instruments use a simple but highly sensitive mechanism for converting mechanical motion into…
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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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