Start Collecting Data; Download Data; Save Data - Fourier TriLink User Manual

5.Start collecting data

Tap Run on the main toolbar.
If the recording rate is 100 measurements per second or less, MultiLab displays the
data in real time, plotting it on the graph as it is being recorded. If the recording rate
is higher than 100/s, the data will be downloaded and displayed automatically, once
the data recording is finished.
If you are recording at a rate of 500/s or 1,000/s, MultiLab displays an online preview
at a rate of 25/s.
You can stop recording anytime by taping Stop
2.4.2.

Download Data

Whenever data is received from the TriLink, it is accumulated and displayed
automatically by MultiLab. There are two modes of communication: Online and Post-
Experiment.
Online communication
When TriLink is connected to the Palm and programmed to run at sampling rates of
up to 25/s, TriLink transmits each data sample immediately, as it is recorded, to the
Palm. The software thus displays the data in real-time in both the graph window and
the table window.
When TriLink is connected to the Palm and programmed to run at a sampling rate of
50/s or higher, data is accumulated in TriLink's internal memory. This data is not
transmitted to the Palm until the recording period has ended, when the data is
automatically downloaded to the Palm and displayed.
Off-line data logging
To download data that was recorded offline, or while TriLink was not connected to a
Palm handheld devise, connect TriLink to the Palm, run MultiLab, tap the menu bar,
tap Logger, then and tap Download. This will initiate the Post-Experiment Data
Transfer communication mode. Once the transfer is complete, the data will be
displayed automatically in the graph window and in the table window. If there are
several experiments stored in the TriLink, the first download will bring up the most
recent experiment; the second download will bring up the first (oldest) experiment,
the third download will bring up the second experiment, and so on.
To download a particular experiment, choose Selective download from the Logger
menu, then select the experiment's number in the Download dialog box.
2.4.3.

Save Data

To save your project tap the menu bar, tap Tools, then tap Save File. This will save
all the data sets under one project file.
If you made any changes to a previously saved project, tap Save to update the saved
file or tap Save as to save it under another name.
28 Chapter 2 Working with Palm Handheld
on the main toolbar.