vibrating reed

Definitions

  • WordNet 3.6
    • n vibrating reed a vibrator consisting of a thin strip of stiff material that vibrates to produce a tone when air streams over it "the clarinetist fitted a new reed onto his mouthpiece"
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Usage

In literature:

A bell, a stretched string, a reed, or other sound-producing body, emits a certain lowest possible tone when vibrated.
"Cyclopedia of Telephony & Telegraphy Vol. 1" by Kempster Miller
Not once, but multifold, like the vibration of a reed or violin string.
"The Fourth R" by George Oliver Smith
He restrained too emphatic vibrations in the case of the larger reed tongues by affixing to them with small screws, weights made of brass.
"The Recent Revolution in Organ Building" by George Laing Miller
See also ACCORDION; CHENG; HARMONIUM; Free-Reed Vibrator.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 7" by Various
This organ is a vibrating instrument, resembling, in principle, the reed of a clarionet.
"The Glaciers of the Alps" by John Tyndall
The vibration of the receiving-reed was made to open and close a local circuit like a common Morse relay and thus operate the sounder.
"Electricity and Magnetism" by Elisha Gray
In November, 1875, he discovered that the vibrations created in a reed by the voice could be transmitted so as to reproduce words and sounds.
"Inventors" by Philip Gengembre Hubert
Do the people construct wind-instruments with a vibrating reed, or some similar contrivance, inserted in the mouth-hole?
"Musical Myths and Facts, Volume I (of 2)" by Carl Engel
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In poetry:

Through quaking grass and waving weed
Rises and falls the river—theme;
Vibrating rush and trembling reed
Are but the harpstrings of the stream.
"The Silent Muse" by Alfred Austin

In science:

In the vibrating reed experiments on bulk crystals by Brill et al., there was no detectable change in elastic modulus at the Tc2 CDW transition around 60 K.
Plasmon mode modifies the elastic response of a nanoscale charge density wave system
But both accordion and harmonica make all their sounds by means of reeds (which are thin brass, bronze, or steel tongue-like plates with one end fixed on a frame) that are driven to vibrate, much like a swinging door, by having air flow across them.
Music in Terms of Science
The air-driven vibration of free-reed is actually a nonlinear phenomenon of coupling between the air flow and the reed displacement while both are undergoing oscillatory motions, which have inspired quite a few scholarly studies. The reed chamber has also been shown to affect both the pitch and the quality of sound.
Music in Terms of Science
Therefore, the airdriven free reed vibration is a more involved case than a simple harmonic oscillator.
Music in Terms of Science
When driven by an air flow, each reed vibrates at a frequency near its natural (i.e., plucked) vibration frequency, which is determined by the mass and stiffness of the reed in cooperation with its associated acoustical system.
Music in Terms of Science
The vibrating reed tongue chops the air stream that drives its motion, resulting in complex pressure pulses whose waveform contains abundant higher harmonics having frequencies very close to integer ratios.
Music in Terms of Science
In other words, the free-reed vibration is self-excited and does not require a vibrating air mass in a resonator to transfer a steady air pressure into an oscillatory motion.
Music in Terms of Science
The resulting pressure from blowing or drawing air in the reed chambers causes a reed or multiple reeds to vibrate for producing sound.
Music in Terms of Science
Each chamber has multiple, variabletuned reeds with one end secured and the other free to vibrate.
Music in Terms of Science
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