Samsung SONOVET R5 Uživatelský manuál Strana 134

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Operation Manual
Circumference and Area Measurement
2D Ellipse
This is a basic measurement that is available in all diagnosis modes. You can measure the circumference
and area of a circular (elliptical) object in a 2D image.
You can measure up to 4 distances. When taking more than one measurement, use measurement cursors
with dierent shapes to dierentiate them.
1. Use the Softmenu switch [2] Area / Circ to select 2D Ellipse. “2D Ellipse” is displayed on the left
side of the screen.
2. Use the trackball and the Set button on the control panel to specify the diameter (axis) of the
measurement area.
X
Place the cursor at a desired position with the trackball, and press the Set button.
Tips!
Repositioning Point
Pressing the Change button before pressing the Set button to complete positioning resets the
position of a point just set.
3. Specify the size of the circle (ellipse).
X
Adjust the size using the trackball, and press the Set button.
4. When the measurement is nished, its result is shown on the screen.
Circ.: Circumference of Object
Area: Area of Object
Avg.(C): Average Circumference
Avg.(A): Average Area
The equations used for ellipse measurement are as follows:
, (A: Long axis, B: Short axis)
Area
= , (a, b: Axis)
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