tuning fork

tun·ing fork

(to͞o′nĭng, tyo͞o′-)n. A small two-pronged metal device that when struck produces a sound of fixed pitch that is used as a reference, as in tuning musical instruments.

tuning fork

n (Music, other) a two-pronged metal fork that when struck produces a pure note of constant specified pitch. It is used to tune musical instruments and in acoustics

tun′ing fork`

n. a steel instrument consisting of a stem with two prongs, producing a musical tone of definite, constant pitch when struck, and serving as a standard for tuning musical instruments, making acoustical experiments, and the like. [1765–75]

Thesaurus

Noun

tuning fork - a metal implement with two prongs that gives a fixed tone when struck; used to tune musical instrumentsimplement - instrumentation (a piece of equipment or tool) used to effect an end

Translations

diapason

tuning fork

tuning fork,

steel instrument in the shape of a U with a short handle. When struck it produces an almost pure tone, retaining its pitch over a long period of time; thus it is a valuable aid in tuning musical instruments. It was invented in 1711 by John Shore, who jokingly called it a pitchfork.

Tuning fork

A steel instrument consisting of two prongs and a handle which, when struck, emits a tone of fixed pitch. Because of their simple mechanical structure, purity of tone, and constant frequency, tuning forks are widely used as standards of frequency in musical acoustics. In its electrically driven form, a tuning fork serves to control electric circuits by producing frequency standards of high accuracy and stability. A tuning fork is essentially a transverse vibrator (see illustration). See Vibration

A tuning fork vibrating at its fundamental frequency

Tuning Fork

a source of sound, consisting of a metal rod that is bent and fixed in the center. The ends of the rod can vibrate freely. During the tuning of musical instruments, the tuning fork serves as the standard pitch of a tone; it is also used to give the pitch in singing. Forks that produce the tone A’ (A of the first octave) are usually used. Singers and choral conductors also use forks producing the tone C”. There are chromatic tuning forks, with prongs that have movable little weights. Depending on the position of these weights, the prongs vibrate at different frequencies.

The tuning fork was invented by the English musician J. Shore in 1711. At that time the standard frequency of vibrations for the tone A’ was 419.9 hertz (Hz). In the late 18th century the composer and conductor G. Sarti, who was working in St. Petersburg, introduced the “St. Petersburg tuning fork,” with an A’ = 436 Hz. In 1858 the Paris Academy of Sciences proposed a standard pitch tuning fork with A’ = 435 Hz. In 1885 at an international conference in Vienna this frequency was adopted as the international standard pitch for the tone A’; the frequency was called the standard musical pitch. Since Jan. 1, 1936, an all-Union standard pitch of A’ = 440 Hz has been in effect in the USSR.

REFERENCE

MuzykaVnaia akustika. Edited by N. A. Garbuzov. Moscow-Leningrad, 1940.

tuning fork

[′tün·iŋ ‚fȯrk] (engineering) A U-shaped bar for hard steel, fused quartz, or other elastic material that vibrates at a definite natural frequency when struck or when set in motion by electromagnetic means; used as a frequency standard.

tuning fork

a two-pronged metal fork that when struck produces a pure note of constant specified pitch. It is used to tune musical instruments and in acoustics

tuning fork

tun·ing fork

tuning fork

tun′ing fork`

tuning fork

tuning fork,

Tuning fork

Tuning Fork

REFERENCE

tuning fork

tuning fork

tuning fork

fork

tun·ing fork

tun·ing fork

tuning fork

Words related to tuning fork

noun a metal implement with two prongs that gives a fixed tone when struck

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