释义 |
DictionarySeeintensityspatial average intensity
spatial average intensity Abbreviation: SAI The measure of power per unit area of ultrasound application, expressed in watts per square centimeter (w/cm2). The spatial average intensity is calculated by dividing the ultrasonic output, expressed in watts, by the effective radiating area of the sound head (e.g., 20 watts/10 cm2 sound head = 2.0 w/cm2 SAI). See also: intensity |