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  • Ultrasonic power meters designed to assess the output characteristics of ultrasound scanners and other ultrasonic diagnostic equipment. These meters measure at frequencies between one and twenty MHz; the results are expressed in either power units (W) or intensity (i.e., power/unit area, typically W/cm2) in a range of up to 10 W These meters usually consist of an appropriate sensor (target), which detects the ultrasonic pressure, coupled to a measuring unit that includes devices such as a mechanical balance, electronic load cell, or strain gauge, as well as an appropriate display.
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