The decibel

Chapter The decibel

Teach Yourself Electricity and Electronics Third Edition Book
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Summary of Contents

Teach Yourself Electricity and Electronics Third Edition Book

  • This is a good time to sidetrack for a moment and exarnine how sound sensation ismeasured.The decibelPerceived levels of sound, and of other phenomena such as light and radio signals,change according to the logarithm of the actual power level. Units have been inventedto take this into account.The decibel1076-9Resistance-vs-displacementcurve for linear taperpotentiometer.6-10Resistance-vs-displacementcurve for audio-taperpotentiometer.