However, there is still a tiny motion induced in the handle in its longitudinal direction (thus at right angles to the oscillation of the prongs) which can be made audible using any sort of sound board. That is because its principal mode of vibration is symmetric, with the two prongs always moving in opposite directions, so that at the base where the two prongs meet there is a node (point of no vibratory motion) which can therefore be handled without removing energy from the oscillation (damping). It is easier to tune other instruments with this pure tone.Īnother reason for using the fork shape is that it can then be held at the base without damping the oscillation. When the tuning fork is struck, little of the energy goes into the overtone modes they also die out correspondingly faster, leaving a pure sine wave at the fundamental frequency. By comparison, the first overtone of a vibrating string or metal bar is one octave above (twice) the fundamental, so when the string is plucked or the bar is struck, its vibrations tend to mix the fundamental and overtone frequencies. The reason for this is that the frequency of the first overtone is about 5 2 / 2 2 = 25 / 4 = 6 + 1⁄ 4 times the fundamental (about 2 + 1⁄ 2 octaves above it). The main reason for using the fork shape is that, unlike many other types of resonators, it produces a very pure tone, with most of the vibrational energy at the fundamental frequency. To order, visit the Gem Feet Page.Motion of an A-440 tuning fork (greatly exaggerated) vibrating in its principal modeĪ tuning fork is a fork-shaped acoustic resonator used in many applications to produce a fixed tone.
Tuning fork therapy how to#
Follow the link to his site for basic instruction in how to use a tuning fork and do a basic 7 Chakra Healing: Free Online Course To learn about the difference between STD (unweighted) forks and WTD (weighted) forks, read here: Standard vs Weighted To learn more about aluminum alloys and how quality tuning forks differ from those made in third world countries, read this short article: Tuning Fork Difference We now also offer Crystal & Gem Feet that fit all of our tuning forks. If you are a beginner and wish to learn more about tuning fork therapy, here is a free online course that was developed by one of our customers. All of our forks are high quality tools, individually made to exacting standards for the best outcome when used for tuning fork therapy. Each fork or set includes a beautiful velvet pouch. The metal will not fatigue over time, and the forks will stay on frequency, even after years of use. And because the metal is heat-treated, it is tempered, making it very strong.
Every fork undergoes a special hand tuning process to assure accuracy within +/. In addition, our forks have longer handles and shorter tines, keeping everything in perfect balance. Our forks are Made in the USA from heat-treated, lead-free, wrought aluminum alloy which has been chosen for its strength, light weight, and superior conductivity of sound waves. We carry over 100 tuning forks and sets, in both standard & weighted.
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