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Store and Load
Header Size
X Origin
X Units
Y Units
Date
Time
Frame
Waveform
Label
3. Waveform Data Header
A waveform may have multiple data sets. Each waveform data set has a waveform
data header. The waveform data header consists of information about the
waveform data set. The header is stored before the data set.
328
A 4-byte integer, indicating the number of bytes in the header.
For time-domain waveforms, it indicates the time between points.
If the value is zero, then no data has been acquired.
An 8-byte double, indicating the X-axis value of the first data point
in the data recording. For time-domain waveforms, it indicates the
time of the first point. The value is treated as a double precision 64-
bit float point number. If the value is zero, then no data has been
acquired.
A 4-byte integer, indicating the unit of measurement for X values in
the acquired data.
0 = Unknown
1 = Volts (V)
2 = Seconds (s)
3 = Constant
4 = Amps (A)
5 = dB
6 = Hz
A 4-byte integer, indicating the unit of measurement for Y values in
the acquired data. The possible values are listed above under X
Units.
A 16-byte character array, not used
A 16-byte character array, not used
A 24-byte character array, indicating the model number and serial
number of the oscilloscope in the format:
MODEL#:SERIAL#.
A 16-byte character array that contains the label assigned to the
waveform.
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