Samsung SONOACE R5 Manuale Utente Pagina 48

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1-32
Operation Manual
The document includes analysis and discussion of the sources of error / measurement eects due to:
X
Balance system calibration.
X
Absorbing (or reecting) target suspension mechanisms.
X
Linearity of the balance system.
X
Extrapolation to the moment of switching the ultrasonic transducer (compensation for ringing
and thermal drift).
X
Target imperfections.
X
Absorbing (reecting) target geometry and nite target size.
X
Target misalignment.
X
Ultrasonic transducer misalignment.
X
Water temperature.
X
Ultrasonic attenuation and acoustic streaming.
X
Coupling or shielding foil properties.
X
Plane-wave assumption.
X
Environmental inuences.
X
Excitation voltage measurement.
X
Ultrasonic transducer temperature.
X
Eects due to nonlinear propagation and saturation loss.
The overall ndings of the analysis give a rough Acoustic Power accuracy gure of +/- 10% for the
frequency range of 1 - 10 MHz.
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