Data And File Handling; Events - Fluke VT Plus HF Operator's Manual

Data and File Handling

VT for Windows files handle three kinds of data, as described in Table 4-5.
Data Type
Signals Raw flow, pressure, and volume time-series waveforms
Parameters Breath-by-breath ventilator parameters calculated by the Analyzer device

Events

Information placed into the data files by the user
VT for Windows provides an interface for the user to mark events during data collection
and generates three different file types, as described in Table 4-6.
File
Extension
*.vtp Generated when the user selects to save data to a file; these files contain signal,
parameters, and event information.
*.sig Signal file of raw waveforms; the .sig files are generated from the .vtp files using a
file conversion program. This is done by selecting GENERATE A SIGNAL FILE
from VT for Windows FILE menu bar. Files must be closed to enable this option.
The .sig files are in ASCII format and can easily be imported into your favorite
spreadsheet.
*.par Breath-by-breath calculated ventilator parameters; the .par files are generated from
the .vtp files using a file conversion program. This is done by selecting
GENERATE A PARAM FILE from the VT for Windows file menu bar. Files must
be closed to enable this option. The .par files are in ASCII format and can easily be
imported into your favorite spreadsheet.

Events

VT for Windows has a simple means to annotate data files. Each of the annotations is
marked as an event in the data file. When a data file is played back, the annotated text
and the time of the event are displayed on the screen.
VT for Windows supports six different types of events:
Start of file
•
Beginning of a recording
•
Time stamp
•
Annotation
•
End of file
•
Automatic event
•
Each event is marked in the .vtp data file with a time stamp. For the beginning of a
recording and for an annotated event, a dialog box appears with a space provided for the
user to enter the text annotation.
Table 4-5. Data Types
Descriptions
Table 4-6. Generated File Types
Description
Remote Operation 4

Data and File Handling

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