Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1


H1-21: SPEED OF SOUND - PHASE CHANGE 9 years 9 months ago #786

  • zzfixk23
  • zzfixk23's Avatar Topic Author
  • Offline
  • User is blocked
  • User is blocked
  • Posts: 323
  • Thank you received: 0

ID Code: H1-21
Purpose: Determine the speed of sound.
Description: A sine wave is sounded by a loudspeaker and picked up by a microphone. The original sine wave triggers the oscilloscope, which displays the signal from the microphone. Motion of the microphone away from the loudspeaker, measured by a ruler or the optical rail scale, is accompanied by a phase or time delay, measured by motion of the oscilloscope trace. The speed of sound is the distance the microphone is moved divided by the additional time lag. This works best at frequencies of at least 3000 Hz.
Availability: Available

Please Log in to join the conversation.

Last edit: by zzfixk21.
  • Page:
  • 1
Time to create page: 0.044 seconds