GE LOGIQ 7

General Measurements and Calculations
7-80 LOGIQ 7 Basic User Manual
Direction 2392206-100 Rev. 1
A/B Ratio
In B-Mode, you can calculate A/B ratio by diameter or by area.
Diameter To calculate A/B ratio by diameter:
1. From the Generic Touch Panel, select A/B Ratio.
2. Select ratio(Diam).
The system displays an active caliper.
3. Make a distance measurement of the first velocity.
The system displays an active caliper for the second
distance measurement.
4. Make a distance measurement of the second velocity.
The system displays each distance measurement and the
A/B ratio in the Results Window.
NOTE: The first caliper is the A velocity. The second caliper is the B
velocity.
For details on how to make a distance measurement, See
‘Distance measurement’ for more information..
Area To calculate A/B ratio by area:
1. From the Generic Touch Panel, select A/B Ratio.
2. Select ratio(Area).
The system displays a trace caliper.
3. Make a trace measurement of the A velocity.
NOTE: To erase an open trace, move the Trackball.
The system displays a second trace caliper.
4. Make a trace measurement of the B velocity.
The system displays the two area measurements and the
A/B ratio in the Results Window.
For details on how to make a trace measurement, See
‘Circumference and area (trace) measurement’ for more
information..