Description of Ultrasonic Field
The spatial distribution of the radiated field is essentially a collimated beam of the ultrasonic energy
having a cross-sectional area of 8.5 cm
2
for the 10 cm
2
sound head when measured at a point 5 mm
from the transducer face.
The energy distribution within the radiated field is 2.4 w/cm
2
maximum and it takes a generally conic
shape, having decreasing intensity at progressively increasing distance from the face of the
transducer. This field distribution applies for the radiation emitted into the equivalent of an infinite
medium of distilled, degassed water at 30° C and with the line voltage variations in the range of 10%
of the rated line voltage.
Abbreviations
The following abbreviations are used on the sound head of the Intelect
®
Legend US.
Abbreviation
Meaning
Area
Effective Radiating Area
Coll.
Collimating
BNR
Beam Non-Uniformity Ration
Freq.
Frequency
Beam Profile of the 10 cm
2
Transducer Operating at 1 MHz
Spatial distribution of the radiated field is essentially a collimated beam of the ultrasonic energy having
a cross-sectional area of 8.5 cm
2
for the 10 cm
2
sound head when measured at a point 5 mm from the
transducer face.
Energy distribution within the radiated field is 2.4 W/cm
2
maximum and it takes a generally conic
shape, having decreasing intensity at progressively increasing distance from the face of the
transducer. This field distribution applies for the radiation emitted into the equivalent of an infinite
medium of distilled, degassed water at about 30° C and with power line variations in the range
of +/- 10% of the rated voltage.
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