Calibration, General case – Spectra Precision ProMark Field Software User Manual

Page 49

Advertising
background image

Engl

ish

43

[8]: Open job name. The job contains the list of stakeout
points.

• When you are almost on the stakeout point, adjust the

antenna pole over the point, making sure the pole stands
in vertical position above the point, to cancel the West/
North or Right/In values.

• Stake the point.

You may want to log the position of the point you are on
for subsequent verifications.

– With the antenna rod still kept vertical over the point,

tap

Log.

– Type in a new point name relevant to the name of the

stakeout point.

– Tap on the

Settings tab and then enter the time of

occupation on the point.

When this is done, tap

OK (any of the two OK buttons

shown at the bottom of the screen) to start logging the
point position. Countdown is started on the point. Stay
static until the time is up.

The screen then shows the properties of the logged
point (the real-time position is averaged over the
occupation time). The description of the logged point
will be in the form:

<Stakeout_Point_ID><E/W><DeltaX><N/S><DeltaY><Fill/Cut><Fill/
Cut Value>

(See also screen example.)

A warning message may be displayed repeatedly during
this sequence if the position accuracy does not meet
your acceptance criteria (see

Tolerances tab in Setting

General Parameters on page 8).

– Tap

OK to close the window.

• Select

Menu > Stakeout to select the next stakeout point or

quit the stakeout function.

Calibration

General Case

The Calibration function (also known as the “Localization”
function) allows you to log points in a local coordinate
system, first an unknown system when starting the project,
but then accurately determined using at least three points for
which coordinates are known in that unknown system.

For a successful determination of the local system (a 3D
system), the known points should be evenly spread over the

Advertising