BC Biomedical USP-100A Instrukcja Użytkownika Pobierz pdf (Strona 7)

The Ultrasound Wattmeter, Model USP-100A, is designed to measure the ultrasound

power output of diagnostic or therapeutic transducers up to 30 Watts. The principle of

measurement is the radiant force method. The USP-100A uses a positioning clamp to

hold the transducer in degassed water above a conical target. The ultrasonic energy

passes through the water to reflect off the target and is then absorbed by the rubber

lining. The radiant power is directly proportional to the total downward force (weight) on

the target. This force is then transferred through the target support assembly to the

electro-mechanical load cell inside the scale. The cell is in a computer-controlled

feedback loop and produces a digital readout; Watts of power (custom units) or grams

of force. The choice of units (Watts or grams) is selected by front panel pushbuttons.

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BC Biomedical USP-100A Instrukcja Użytkownika Strona 7