1.1
Mode of operation
The HF generator transforms the mains energy input (mains frequency 50 or 60 Hz) into
high-frequency energy with a frequency of 20 kHz. Thanks to the ultrasonic transducer that is
connected to the HF generator, the high-frequency energy of the HF generator is converted into
ultrasound and thus into mechanical energy. This takes place with an ef
fi
cient and robust PZT
ultrasonic oscillating system. Thus, mechanical de
fl
ections with the same frequency of 20 kHZ
are generated on the tip of the probe and transferred into the sonication medium as ultrasound
waves with a high power intensity. The amplitude is held constant by the ultrasonic transducer
(AMPLICHRON® system), independently from the applied load, using a signal feedback as long
as the maximum power allowed is not exceeded. Thanks to these measures, the reproducibility of
the process parameters is guaranteed and validation of the process is supported.
Standard and/or booster horns with probes ( micro tips, tapered tips or titanium plates) are
mounted on the ultrasonic transducer. These work as mechanical transformers and enable a
multiple mechanical ampli
fi
cation of the ultrasound amplitude at the tip.
1.2
Purpose
SONOPULS ultrasonic homogenisers generate high-performance ultrasound with high intensities
and ultrasonic amplitudes, which are transferred into liquid media using working tools called
probes. They are used in laboratories, clinics, and in industrial research, and they perform diverse
tasks during sample preparation in Quality Assurance, scienti
fi
c experiments, analyses, and in
pilot or short-series manufacture.
Application examples:
• Cell disruption for paternity tests
• Cell disruption (extraction of microorganisms, tissue cells)
• Homogenising of liquids
• Emulsifying hard-to-mix liquids
• Dispersion of agglomerates
• Acceleration of chemical reactions
• Degassing of
fl
uids
•
Sample preparation in environmental analytics (wastewater tests, soil samples)
• Sonochemistry
SONOPULS ultrasonic homogenisers are also used for in-vitro diagnostic lab procedures, to
procure information from the handling of organic materials with ultrasound. Therefore, they are
classi
fi
ed and treated in accordance with the Directive 98/79/EC on in-vitro diagnostic medical
devices.
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electronic GmbH & Co. KG • Heinrichstraße 3-4 • 12207 Berlin • Deutschland • info@bandelin.com
