Samsung H60 Manual do Utilizador descarregar pdf (Página 125)

8-7

Chapter 8 Measurements and Calculations

Measurement Accuracy Table

The following tables show the accuracy of the measurements that can be taken using this product. Ensure

that the results of measurement accuracy checks are kept within the ranges specified in the table. Except

for certain applications or probes, the following accuracy ranges should be maintained for measurement

of distance on a straight line.

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 the Samsung Medison Service Department.

 2D Mode

Measurements

System Tolerance

(Whichever is greater)

Test

Methodology

Accuracy

Based on

Range

Axial Distance < ± 4% or 1mm Phantom Acquisition Full Screen

Lateral Distance < ± 4% or 2mm Phantom Acquisition Full Screen

 M Mode

Measurements

System Tolerance

(whichever is greater)

Test

Methodology

Accuracy

Based on

Range

Depth < ± 5% or 3 mm Phantom Acquisition 1 ~ 25 cm

Time < ± 5% Signal generator Acquisition 0.01 ~ 11.3 sec

 PW/CW Spectral Doppler Mode

Doppler Measurement

System Tolerance

(whichever is greater)

Test Methodology Range

Velocity < ± 15% Phantom

PW: 0.1 cm/s - 8.8 m/s

CW: 1 cm/s – 19.3 m/s

Time < ± 5% Signal generator 10 ms ~ 9.44 s

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Samsung H60 Manual do Utilizador Página 125