Anyone new to the concept of cleaning by using sound waves to both prevent particulate build up and aid material flow within a wide range of industries and process applications wherever ash, dust, powders or granules are processed, generated, stored or transported will find the following brief introduction of interest. A periodic "sounding" typically 5 to 10 seconds every 2 - 30 minutes is all that is required.
Acoustics have been the subject of study since prehistoric times when ancient archers discovered their bowstring made pleasant sounds. Again, in ancient times, shepherds fashioned rudimentary flutes from reeds and gradually the science of acoustics developed into the art of music and way beyond.
The ancient Chinese, Hindus and Greeks began to study acoustics on mathematical lines; indeed the word itself is of Greek origin. After a period of intellectual dormancy that characterized the Middle Ages, the evaluation of acoustics as a science recommenced with major contributions by Golites, da Vinci, Newton, Laplace to name but a few. With the ever-increasing understanding and knowledge, acoustics began to be developed with studies in three major specific spheres:
The illustration (right) shows the general sound spectrum from Ultrasonics through Audiosonics down to Infrasonics.
Primasonics® International offers innovative effective solutions within each of these three spheres.
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20Hz
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audible
range |
20Khz
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infra-sonic
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ultra-sonic
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The
human ear is most sensitive
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500Hz
- 6,000 Hz
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Primasonics
Acoustic Cleaner Range
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11Hz
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Infrasonic
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22Hz
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50Hz
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Audiosonic
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350Hz
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25Khz
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Ultrasonic
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80Khz
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