PASI GEA24, Руководство пользователя

Страница: 40 / 59

40
Across the top are the ID numbers of the physical geophones (Trg identifies the signal
acquired from the Trigger). The letter "P" indicates that the signal is shown with the
polarity as it has been acquired. If the signal is inverted from the "View / Filter" window
the indication becomes "- P" to indicate that the signals have been inverted.
Down the left side the time axis (in milliseconds) the same for all the geophones, is
shown.
To display the signal for its entire duration and for all the geophones it may be necessary
to use the scroll up and down the table.
The "Result Acquisition" window will allow the operator to perform the following:
- Signal Picking (Marker) - By clicking on the screen, within the graphics display
table, an acquired signal of an event of interest (for example, the first arrivals of
the signals in the seismic refraction), a red line will appear with the indication of
the time that corresponds to the selected point. The markers must be placed during
the first display and before saving the data. In this case, the markers will be stored
and viewable even when the acquisitions are recalled in "File Management", it is
not possible to add or modify markers on an already acquired file.
- View / Filters - The operator can change the representation of the graphics or
apply filters to the acquired signal. The application of filters is only possible if no
filter had been expected to be used during the “acquisition configuration”.
- Stacking - The operator can make further stacking acquisitions after having
viewed the result of the acquisition.
- Total> - this button is available after stacking by the operator during the display
phase. After carrying out stacking controlled by the display phase, only the last
stacking signal is displayed: by pressing the "Total" button you can visualize the
signal that includes the previous stacking and the last one you acquired.
- <Last - this button is shown after stacking by the operator during the display
phase. It allows you (while you are viewing the total signal of all stackings carried
out) to go back and view the signal, relative to the last stacking performed.
- Undo Stack –you will find this button after stacking by the operator during the
display phase. It allows you to discard the acquisition from the last stacking.
- Save Data - Saving data acquired on SEG2 file.
The window also contains the following command button:
- Main - Exits the "Acquisition Display" window and goes back to the homepage,
the acquired data will be deleted if the operator confirms that he/she wants to leave
the display page without saving the data.