Anfatec eLockIn 203, Manual

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Color
[ Spectra / Display / Color ]
This menu item shows the color of the selected axis. If the
Color
is
Off
then the
channel is not displayed. This menu item does not exist if the selected axis is
freq
.
Offset
[ Spectra / Display / Offset ]
This shifts the selected curve along its axis. This menu item does not exist if the selected
axis is
freq .
Save Reference Channel [ Spectra / Display / -> Ref ]
If the reference channel is empty, None is displayed. Press once to store the data of the
selected axis into the reference channel.
If the reference data set exists, the
name
of the stored channel is show and the
reference data is displayed in the desired color.
3.3.3 A
CQUIRE
[ S
PECTRA
/ A
CQUIRE
]
For the spectrum acquisition, the following parameters can be set:
start frequency
f1
stop frequency
f2
number of data
Point
s in the spectrum (up to 100000 points)
acquisition Delay (is connected to the time constant)
Furthermore, there are several possibilities to handle spectra taken in sequence.
Therefore we introduced a
Type of spectrum acquisition, which allows to repeat
acquisition automatically (continuous) or to sum up spectra (integrated).
Type [ Spectra / Acquire / Type ]
This parameter has three options:
Single
: The specified spectrum is acquired just once. When it is finished, the
acquisition process stops.
Conti.
: which stands for continuously. The specified spectrum is acquired as long as
Run
is selected. When it is finished, the acquisition process restarts.
Integ.
: is an integrating acquisition of spectra. The spectra are taken continuously,
however, the final spectrum is the average spectrum calculated from all taken
spectra. The integration restarts with every
Run
/
Stop
selection.
f1 and f2
[ Spectra / Acquire / f1 ]
and
[ Spectra / Acquire / f2 ]
f1 = start frequency = first point in the spectrum.
f2 = stop frequency = last point in the spectrum.
Point [ Spectra / Acquire / Point ]
This is the number of points in the spectrum. The specific frequencies in the spectrum
are calculated based on this number,
f1
,
f2
and the sweeping type (see 3.3.2: Type).
Delay
[ Spectra / Acquire / Delay ]
This parameter controls the delay between the time when the instrument sets a new
frequency and the time it takes the output data. Its length is given in multiples of
τ
, the
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