Mettler Electronics Corp.— Rev.J_09/13/17
46
Figure 7.6—Ultrasound Application Techniques
On occasion, irregular surfaces of the body are treated (hands) and may offer a poor
surface for proper sound head contact. The underwater technique may be used for these
applications. The part to be treated and the sound head are submerged in water and the
sound head is moved over the area, keeping the head ½ to 1 inch away from the area of
treatment. As air bubbles appear on the surface of the sound head they should be wiped
away to insure proper transmission of energy.
Figure 7.7 Underwater Treatment Technique
7.2 Output Levels
The differences between transducers of varying radiating areas are shown below. The
chart is a calculation of power output for these applicator crystals with different radiating
areas.
Transducer
Disc
Sonicator
Others
Metal Enclosure
Figure 7.8 Differences Between Transducers
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