Sonics VC600 Dual User Manual download pdf (Page 5)

SECTION II – OPERATION

PRINCIPLES OF ULTRASONIC DISRUPTION

The ultrasonic power supply converts 50/60 Hz line voltage to high frequency electrical

energy. This high frequency electrical energy is transmitted to the piezoelectric

transducer within the converter, where it is changed to mechanical vibrations. The

vibrations from the converter are intensified by the probe, creating pressure waves in the

liquid. This action forms millions of microscopic bubbles (cavities) which expand during

the negative pressure excursion, and implode violently during the positive excursion.

This phenomenon, referred to as cavitation, creates millions of shock waves in the liquid,

as well as elevated pressures and temperatures at the implosion sites. Although the

cavitational collapse last but a few microseconds, and the amount of energy released by

each individual bubble is minute, the cumulative effect causes extremely high levels of

energy to be released into the liquid. The larger the probe tip, the larger the volume that

can be processed but at a lesser intensity. For information regarding the processing

capability of each probe, consult the tables below.

TAPERED MICROTIPS STEPPED MICROTIP

TIP DIAMETER 1/8" (3 mm) 3/16" (5 mm) 1/4" (6.5 mm) 1/8" (3 mm)

INTENSITY ultra high very high high very high

VOLUME (batch) 1-10 ml 3-15 ml 5-25 ml 250ul-10 ml

STANDARD PROBES

TIP DIAMETER 1/2" (13 mm) 3/4" (19 mm) 1" (25 mm)

INTENSITY high medium low

VOLUME (batch) 10-250 ml 25-500 ml 50-1000 ml

HIGH GAIN PROBES

TIP DIAMETER 3/4" (19 mm) 1" (25 mm)

INTENSITY high medium

VOLUME (batch) 25-500 ml 50-1000 ml

1 2 3 4 5 6 7 8 9 10 ... 20 21

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Sonics VC600 Dual User Manual Page 5