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Volume
Electrical Systems
Chapter
Understanding Analog Instrumentation
Understanding Analog Instrumentation - Overview
What is an Analog Instrument?
An “analog” electronic signal is a voltage or current proportionate to the value of some physical measurement or control quantity. An instrument is often classified as being “analog” simply by virtue of using an analog signal standard to communicate information, even if the internal construction and design of the instrument may be mostly digital in nature.
This is to distinguish such instruments from those making use of no analog electronic signals at all (e.g. wireless or Fieldbus instruments).
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