9.02 ultrasonics. Technology of sound at frequencies greater than 20 kHz.
Annotation A frequency of 20 kHz is the approximate upper limit of the range of human hearing. (See 2.02.)
« Back to Standards Terminolgy Index
9.02 ultrasonics. Technology of sound at frequencies greater than 20 kHz.
Annotation A frequency of 20 kHz is the approximate upper limit of the range of human hearing. (See 2.02.)
« Back to Standards Terminolgy Index