Transcription of Sensing and Sensors: Acoustic Sensors - RealTechSupport
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Sensing and Sensors: Acoustic Sensors - RealTechSupport
Sensing and Sensors : Acoustic Sensorsversion Lab, January 2008 References: Fraden: Handbook of Modern SensorsDrafts, Acoustic Wave SensorsBuff, SAW SensorsCady. Piezoelectricity: An Introduction to the Theory and Applications of Electromechanical Phenomena in : sound wavesSound waves are created by alternate compression and expansion of solids, liquids or gases at certain mechanical waves: oscillation in the direction of wave propagation'Sound' are longitudinal mechanical waves between 20 and 20khz, based only on our own hearing abilities / Mechanical waves below 20hz. Are perceived by dogs and called Infrasound by your hearing and your audio equipment here: The Speed of SoundThe speed of sound depends on the medium through which the waves are passing, and is often quoted as a fundamental property of the material. In general, the speed of sound is proportional to the square root of the ratio of the elastic modulus (stiffness) of the medium to its density.
The Speed of Sound The speed of sound depends on the medium through which the waves are passing, and is often quoted as a fundamental property of the material.
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