Programmable Logic Controllers
Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Chapter 6, Problem 21RQ

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Using tachometer to measure rotational speed:

  • Tachometer is a small AC or DC generator which converts rotational speed into voltage signal.
  • It develops an output voltage proportional to its rpm whose phase or polarity depends on the rotor’s direction of rotation.
  • The rotor of the tachometer is mechanically connected to the load...

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Analyze the charts and introduce each charts by describing each. Identify the patterns in the given data. And determine how are the data points are related.   Refer to the raw data (table):
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