chap02 - PROBLEM 2.1 FIND Define signal and provide...

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PROBLEM 2.1 FIND: Define signal and provide examples of static and dynamic input signals to measurement systems. SOLUTION: A signal is information in motion from one place to another, such as between stages of a measurement system. Signals have a variety of forms, including electrical and mechanical. Examples of static signals are: 1. weight, such as weighing merchandise, etc. 2. body temperature, over the time period of interest 3. length or height, such as the length of a board or a person's height Examples of dynamic signals: 1. input to an automobile speed control 2. input to a stereo amplifier from a component such as a CD player 3. output signal to a printer from a computer
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