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Electrical Technology, Vol2: Machines and Measurements, 1/e by S. P. Bali

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48

Measurements and Error

OBJECTIVES

In this chapter you will learn about:

  • The difference between analog and digital instruments
  • The need for measurements
  • Definitions of terms such as accuracy, precision, sensitivity, resolution, etc.
  • Factors affecting accuracy
  • The significance of noise and signal-to-noise ratio
  • The practical application of probes and their importance
  • The general form of a measurement system
  • Intelligent instrument and why is it called intelligent
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Measurements and error

48.1   INTRODUCTION

Whether an equipment is to be designed, installed, put into operation, or repaired, for all these operations certain electrical quantities ...

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