Sonometer


Sonometer

A sonometer is an apparatus by which the transverse vibrations of strings can be studied. It is also called the monocord because it often has only one string. On the box are two fixed bridges, near the ends, and at one end is a pulley. A string, often a steel wire, is fastened at one end, run over the bridges and the pulley, and attached to a weight holder hanging below the pulley. Weights can be added to the holder to produce tension in the wire, and a third, movable bridge, can be placed under it to change the length of the vibrating section of the string. A Sonometer demonstrates the relationship between the frequency of the sound produced by a plucked string, and the tension, length and mass per unit length of the string. These relationships are usually called "Mersenne's laws" after Marin Mersenne (1588-1648), who investigated and codified them. For small amplitude vibration, the frequency is proportional to:
# The square root of the tension of the string,
# The reciprocal of the square root of the linear density of the string,
# The reciprocal of the length of the string.


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  • Sonometer — So*nom e*ter, n. [L. sonus a sound + meter.] 1. (Physiol.) An instrument for exhibiting the transverse vibrations of cords, and ascertaining the relations between musical notes. It consists of a cord stretched by weight along a box, and divided… …   The Collaborative International Dictionary of English

  • Sonometer — (v. lat. u. griech.), 1) Schallmesser, so v.w. Stethoskop u. Plessimeter, s.u. Auscultation 2); 2) Tonmesser, wird von Einigen das Monochord genannt; 3) von Wakley erfundenes Instrument, welches den Zweck hat, den Grad der Schwerhörigkeit einer… …   Pierer's Universal-Lexikon

  • Sonomēter — (Audiometer), ein von Hughes angegebener Apparat zur Bestimmung der Empfindlichkeit des menschlichen Ohres, besteht aus einem Mikrophon, das auf dem Sockel einer Pendeluhr steht und in den Schließungsbogen einer Batterie eingeschaltet ist; der… …   Meyers Großes Konversations-Lexikon

  • Sonometer — (Tonmesser), entweder Name des Monochords (s. Schall) oder Name eines von Hughes erfundenen Tonempfindungsmessers, s.v.w. Audiometer (s.d.). A. Schmidt …   Lexikon der gesamten Technik

  • Sonometer — Sonometer, lat. griech., Schallmesser, soviel als Stethoskop …   Herders Conversations-Lexikon

  • Sonometer — sonometras statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas klausos jautriui matuoti. atitikmenys: angl. sonometer vok. Sonometer, n rus. сонометр, m pranc. sonomètre, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • sonometer — sonometras statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas klausos jautriui matuoti. atitikmenys: angl. sonometer vok. Sonometer, n rus. сонометр, m pranc. sonomètre, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Sonometer — sonometras statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas stygos tono aukščiui nustatyti. atitikmenys: angl. sonometer vok. Sonometer, n rus. сонометр, m pranc. sonomètre, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • sonometer — sonometras statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas stygos tono aukščiui nustatyti. atitikmenys: angl. sonometer vok. Sonometer, n rus. сонометр, m pranc. sonomètre, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Sonometer — sonometras statusas T sritis fizika atitikmenys: angl. monochord; sonometer vok. Sonometer, n rus. сонометр, m pranc. monocorde, f; sonomètre, m …   Fizikos terminų žodynas


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