Q9 Digital Color Doppler Ultrasound System
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Display Accuracy and Acoustic Measurement Uncertainties
According to IEC60601-2-37 and NEMA UD-3 2004, the display accuracy and acoustic measurement uncertainties are
summarized in the table below.
Display accuracy of MI is ±20%, and TI is ±40% or <0.1, if MI,TI below 0.5.
Item
Measurement Uncertainty
(Percentage, 95% Confidence Value
Center Frequency ±5%
Acoustic Power
±30%
Acoustic Intensity
±30%
Peak Rarefactional Pressure ±15%
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