More files

situations in which the energy source is not strictly speakingelectromagnetic e g sonar and also situations where it may not be reflected radiation e g thermal infraredSensors can be divided into two types passive which measure ambient levels of existing sources of energy andactive which provide their own source of energy e g radarThe major source of electromagnetic energy is the sun although the
  • File size: 387 KB
  • Authors: none
  • Created: Tue Apr 20 23:25:10 2004
  • Pages: 7