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Chapter 5 Measurements and Calculations
Measurement Accuracy Table
The following tables show the accuracy of the measurements available using the product. Ensure that the
results of measurement accuracy checks are kept within the ranges specied in the table. Except for certain
applications or probes, the following accuracy ranges should be maintained for measurement of a straight
distance.
NOTE:
To ensure accurate measurements, an accuracy check should be performed at least once per year.
If the measurement accuracy falls outside the ranges specified in the following table, contact Samsung
Medison Customer Service.
2D Mode
Measurements
System Tolerance
(Whichever is greater)
Test Methodology
Accuracy
(1)
Based on
Range
(2)
Axial Distance < +/- 4% or 1mm Phantom Acquisition Full Screen
Lateral Distance < +/- 4% or 2mm Phantom Acquisition Full Screen
Axial Resolution < = 2mm Phantom Acquisition Full Screen
Lateral Resolution < = 3mm Phantom Acquisition Full Screen
(1) The accuracy of the measurements diers from the table above, depending on the user’s skills.
(2) The distance is indicated as ‘cm’ up to two decimal points.
M Mode
Measurements
System Tolerance
(whichever is greater)
Test
Methodology
Accuracy
(1)
Based on
Range
(2)
Depth <+/- 5% or 3 mm Phantom Phantom 1 - 25 cm
Time < +/- 5%. Signal generator Phantom .01 - 11.3 sec
(1) The accuracy of the measurements diers from the table above, depending on the user’s skills.
(2) The distance is indicated as ‘cm’ up to two decimal points. The speed is indicated as ‘cm/s’ up to two
decimal points.
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