Measurement and Calculation
8-2
Enter key
To confirm the Meas/Calc item while measuring & calculating.
To switch and confirm LMP input in growth charts.
To select options in Report.
Esc key
To exit the current Meas/Calc and go to the previous menu, or
exit directly.
The direct measurement keys Dis and Area can be used to measure distance and
area/circumference (trace method) in B and B/M modes.
Meas and Calc keys can be used to bring up the Meas/Calc functional menu. To adapt
to the width limit, the menu items with many letters are abbreviated. See Appendix A for
meanings of abbreviations. Use the touchpad to select a Meas/Calc item and then press
Enter key to start measurement & calculation; pressing Esc key will exit the current
Meas/Calc menu. On menu select screen or during the measuring & calculating process,
pressing other functional key will exit the current Meas/Calc operation and enter other
functional operation.
8.1.2 General measurement
The general measurement menus brought up by pressing
Meas key are diverse under
different modes, which are listed as follows:
a) Measurement menu in B mode (including 2B and 4B):
Table 8-2 B mode（including 2B and 4B）Measurement Menu
Menu Description
Track-area Area and circumference measurement in Track method
Ellipse-area Area and circumference measurement in Ellipse method
Biplane-vol. Volume measurement in biplane method
Ellipse-vol. Volume measurement in ellipsoid method
Simpson-vol. Volume measurement in Simpson method
Sphere-vol. Volume measurement in sphere method
Angle Angle measurement
Area ratio(t) Area ratio in trace method
Area ratio(e) Area ratio in ellipse method
%area redu(t) Area reduction percentage in trace method
%area redu(e) Area reduction percentage in ellipse method
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