On a graph from my experiment on a hand held fork I measured in 2015 I showed that over the ~minute the fork was oscillating the pitched dropped approximately linearly from 524.091Hz to 524.082Hz, end of factual information. This website does not allow me to post evidence like data files or graphs or sound files, so you will have to do it on your own if you want to see. That will give accuracy to around 0.01Hz. Measurements on the topic for this forum can be done by holding a $8 tuning fork in front of a mic, then analyze the sound file with the free program "SpectraLabs" using the "Waterfall" display and using the built in Goertzel frequency extraction algorithm. ![]() You can start a pendulum swinging, count time with it, and as the swings slowly diminish they will keep marking the same time intervals. For small amplitudes of oscillation, its frequency is independent of the amplitude. ![]() Objects tend have “natural” frequencies at which they oscillate, determined by intrinsic properties like their mass and their restoring forces.Īnother example is a pendulum (which is like a swingset). You can push your child gently or forcefully in the swing, but the swing “wants” to swing at a frequency determined by its length and the strength of Earth’s gravity. The approximation is good for weak strikes if you strike it really hard, the approximation becomes worse and it can affect the frequency, so be gentle with your tuning fork. ![]() To a first approximation, a tuning fork’s frequency is determined by its mass, stiffness, and shape, which are fixed. Does the frequency of a tuning fork depend on the strength by which it is struck?
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |