Longitudinal Waves: Compression & Rarefaction

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SUMMARY

Longitudinal waves consist of compression pulses followed by rarefaction, establishing a clear relationship between these two phenomena. In electrical transmission lines, a DC component can be introduced, affecting the overall wave behavior. A balanced system of multiple pulses, such as three, eliminates any residual DC component, which can be achieved by utilizing a DC blocking capacitor in the transmission line setup.

PREREQUISITES
  • Understanding of longitudinal wave mechanics
  • Knowledge of electrical transmission line theory
  • Familiarity with DC blocking capacitors
  • Basic principles of wave propagation
NEXT STEPS
  • Research the principles of longitudinal wave mechanics
  • Study the impact of DC components in electrical transmission lines
  • Learn about the design and application of DC blocking capacitors
  • Explore balanced pulse systems in wave transmission
USEFUL FOR

Students of physics, electrical engineers, and professionals involved in wave propagation and transmission line design will benefit from this discussion.

abhinavjeet
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In a longitudinal wave is a compression pulse always followed by a rarefaction on its tail
 
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abhinavjeet said:
In a longitudinal wave is a compression pulse always followed by a rarefaction on its tail
It is possible to have just one direction of pulse but then the whole system has moved forward statically. For electrical transmission lines we have created a DC component. A balanced system of pulses (maybe 3 for instance) has no residual DC component. This would be obtained if the transmission line is driven via a DC blocking capacitor.
 

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