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Equivalent Series and Parallel Circuits

Textbook

Impedance in a series circuit is the orthogonal sum of resistance and…

Change-of-quantity Flow Measurement

Textbook

Flow, by definition, is the passage of material from one location to…

Loop Diagrams (Loop Sheets)

Textbook

Finally, we arrive at the loop diagram (sometimes called a loop sheet)…

Motives for Compromising the Security of an Industrial Control System

Textbook

There are multiple motives for compromising the security of an…

Calibration Errors and Testing

Textbook

The efficient identification and correction of instrument calibration…

The Concept of Differentiation

Textbook

Suppose we wished to measure the rate of propane gas flow through a…

Relating 4 to 20 mA Signals to Instrument Variables

Textbook

A 4 to 20 mA current signal represents some signal along a 0 to 100…

Dispersive Spectroscopy

Textbook

The dispersion of visible light into its constituent colors goes all…

Weight-based Level Measurement

Textbook

Weight-based level instruments sense process level in a vessel by…

High-reliability Control Systems

Textbook

As discussed at the beginning of this chapter, instrumentation safety…

Instruction List (IL) Programming

Textbook

(Will be addressed in future versions of this book)

Calibration Standards to Produce and Measure Physical Quantities

Textbook

As previously defined, calibration refers to the checking and…

Split-range Control

Textbook

There are many process control applications in the industry where it…

Radiation Level Measurement

Textbook

Certain types of nuclear radiation easily penetrates the walls of…

Physics and Chemistry Terminology and Definitions

Textbook

Atom: the smallest unit of matter that may be isolated by chemical…

Radio-energy Pulse in Guided-wave Radar Level Measurement

Textbook

The following animation shows how a radio-energy pulse travels down…

Transmitter Damping Adjustments

Textbook

The vast majority of modern process transmitters (both analog and…

Rotary-stem Valves

Textbook

A different strategy for controlling the flow of fluid is to insert a…

Advantages and Disadvantages of Pneumatic Instruments

Textbook

The disadvantages of pneumatic instruments are painfully evident to…

Numerical Integration

Textbook

As we have seen, the concept of integration is finding the…