tuning fork


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fork

 [fork]
a pronged instrument.
tuning fork a device that produces harmonic vibration when its two prongs are struck; used to test hearing and bone conduction. See tuning fork tests.

tun·ing fork

a steel or magnesium-alloy instrument roughly resembling a two-tine fork; the vibrations of the tines, when struck, produce a pure tone and overtones; used to test hearing and vibratory sensation.

tuning fork

[t(y)o̅o̅′ning]
Etymology: Gk, tonos, stretching; L, furca, fork
a small metal instrument consisting of a stem and two prongs that produces a constant pitch when either prong is struck. It is used by physicians as a screening test of air and bone conduction.

tun·ing fork

(TF) (tūn'ing fōrk)
Steel or magnesium-alloy instrument roughly resembling a two-pronged fork, the vibrations of the prongs of which, when struck, give a musical tone of restricted bandwidth; used to test hearing and vibratory sensations.

tuning fork

tuned, steel instrument formed as a base piece, and two parallel tuned tines which vibrate when struck, sounding a single note of known frequency; 128-Hz tuning fork is used to evaluate vibration perception (base piece is placed against a bony prominence whilst tines are set in vibration); normal subject should be able to detect vibrations at distal parts of foot (see Rykel-Seiffer)
References in periodicals archive ?
In the experiment, Jin measured the temperature change in both arms of the tuning fork and subtracted one from the other, both with and without a 7-tesla magnetic field turned on.
Baseline values of vibration sense using 128 Hz Rydel Seiffer tuning fork and formal motor power of quadriceps muscle, foot flexion and foot extension using modified grading system of Formal motor power testing (British Medical Research Council, 1978) were recorded a day prior to surgery [Table 2].
Quartz tuning forks (QTFs) have previously been proposed [1] as cost-effective and simple alternatives to conventional label-free mass-sensing quartz crystal microbalances (QCM) [2].
Tuning fork test and monofilament were the most specific and accurate of all the diagnostic tests.
Pass the tuning fork around so each group member can complete the procedure.
The 128-Hz tuning fork is among those four choices (the others are pinprick sensation, ankle reflexes, and vibration perception threshold testing), but no specific parameters are given for how to use it (Diabetes Care 2008;31:1679-85).
The tuning fork imposes a phase modulation on the incident microwave signal.
A child's stethoscope and a tuning fork with a vibration frequency of 128 Hz was used.
John Akehurst, trainer of Boule d'Or and Tuning Fork ``Boule d'Or should go close, but the only question mark concerns his near three-month absence.
Yet he managed, in an ever-more-acrobatic pas de deux, an unearthly communion with his tuning fork of a ballerina.
Gently strike a tuning fork with a rubber mallet, then touch the handle only to various objects.
The SV-10 viscometer utilizes a tuning fork vibration method that takes the uncertainty out of viscosity measurement.