1st example of a configuration file

[Pascal Olivier Gaggero]

Dear all,

This message describes a proposed simple configuration file for OEIT. The configuration files constitute the core of the OEIT file format, thus this example gives large insights on how could OEIT look like. The presented configuration file describes an EIT system similar to the Goe MF II system. This system is serial, mono-frequency, inject current (100 kHz, 1mA amplitude, sinus, adjacent) and measure a voltage (demodulation at 100kHz, each voltage is integrated for 100 ms, adjacent).

<?xml version="1.0" encoding="UTF-8" ?>
<configuration version=”1.0.0”>
<general>
<frame_rate>13</ frame_rate>
</ general>
<meas_type name=”mgoe”>
               <demod_freq>100000<demod_freq />
                <physical_quantity>voltage<physical_quantity />
                <signal_gain>1<signal_gain />
                <offset_gain>0<offset_gain />
                <binary>
                                <amplitude format=”float”/>
                </binary>
                <comment>
                                This is a comment.
                </comment>
</ meas_type>
<stim_type name=”sgoe”>
                <stim_freq>100000<stim_freq />
                <stim_type>current<stim_type />
                <stim_wave>sinus<stim_wave />
                <stim_amplitude>0.001<stim_amplitude />
                <comment>
                                This is a comment.
                </comment>
</ stim_type>
<measurements>
               <meas_task start=”0” stop=”100”>
                                <stim type=”sgoe electrodes="[1, 2]" gain="[1,-1]”/ >
                                <meas type=”mgoe electrodes="[1, 2]" gain="[1,-1]”/ >
                <meas_task/>
                <meas_task start=”100” stop=”200”>
                                <stim type=”sgoe electrodes="[1, 2]" gain="[1,-1]”/ >
                                <meas type=”mgoe electrodes="[2, 3]" gain="[1,-1]”/ >
                <meas_task/>
                <meas_task start=”200” stop=”300”>
                                <stim type=”sgoe electrodes="[1, 2]" gain="[1,-1]”/ >
                                <meas type=”mgoe electrodes="[3, 4]" gain="[1,-1]”/ >
                <meas_task/>
  etc... for a total of N measurement tasks
</measurements>
</configuration>

 

The order of the <meas> and <meas_task> tags reflects the order in which the measurement are stored in binary numbers. The binary number type is given by the <binary> tag.

 

We are looking forward for your comments,

 

Pascal, Bartek, Hervé and Andy