Sonicator 740 Instruction Manual— Rev.G_06/28/12
29
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
Intensity Setting ERA Effective Power Produced
(W/cm²) (cm²) (W)
1.5 1 1.5
1.5 5 7.5
1.5 10 15.0
You will note, though the intensity setting remained constant, the amount of energy delivered varies
appreciably. We caution the user to consider this since units of different manufacture may be available in
your facility. If watts per square centimeter is used as the prescribed intensity setting, the effective watts
delivered will not remain constant.
To Next Page
Loading...
