#Tuning fork how to#
440Hz tuning fork: The tuning fork is made of metal alloy, and the pitch A.440 Hz is printed on the handle.It can be carried with you, and it is good to put it in your pocket or schoolbag. Lightweight and compact: The guitar tuning fork has a length of 12.6cm (5inch) and is light in weight.Once the fork has settled down to its fundamental mode, it produces a sine wave trace on the oscilloscope.
The tuning fork sound is picked up by the microphone and displayed on the screen of an oscilloscope. The two sound waves generated will show the phenomenon of sound interference. The two sides or "tines" of the tuning fork vibrate at the same frequency but move in opposite directions at any given time. This is close to the first overtone of the clamped bar. The "clang" mode has a frequency which depends upon the details of construction, but is usuallly somewhat above 6 times the frequency of the fundamental.
Tuning Fork Tuning Fork Modes The tuning fork has a very stable pitch and has been used as a pitch standard since the Baroque period.