Ultrasonic noise from ultrasonic drills
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Witold Mikulski [1] ; Bozena Smagowska [1]
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[1] National Research Institute (Polonia)
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- Localización: Tecniacústica 2008: conferencias y comunicaciones de Acústica 2008. V Congreso Ibérico de Acústica y Tecniacustica 2008; 39.º Congreso Español de Acústica. Coímbra, Portugal. octubre, 2008, 2008
- Idioma: inglés
- Enlaces
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Resumen
In Poland ultrasonic noise is defined as the broadband noise containing high audible and low ultrasonic frequencies include the 1/3 octave band with the central frequency from 10 kHz to 40 kHz. There are a few acoustic parameters characteristic for noise emission from ultrasonic sources. Commonly used are the sound power level and the sound emission pressure level, both in the 1/3 octave bands. One of the main types of the technological ultrasonic sources are the ultrasonic drills.These types of machines use ultrasonic vibrations to internal grinding in diamonds. There are many types of ultrasonic drills. Ultrasonic noises emitted by these sources depend on the electric power and the different kind of the acoustic enclosures of drills. This paper presentsthe result of measurement of ultrasonic noise emitted from a several ultrasonic drills. The measured parameter is the sound emission pressure level in the 1/3 octave band, which is determined at the workstations and at the specified point in front of drills.
