Chison ECO 2 - Appendix E: Display Accuracy and Acoustic Measurement Uncertainties

ECO 2 Ultrasound Diagnostic System
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Appendix E: 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
±15%
Acoustic Power
±30%
Acoustic Intensity
±30%
Peak Rarefactional
Pressure
±15%