File formats for Tsikl-5 and Tsikl-7 (CEI-7) receivers


File encoding - Windows-1251, delimiter – spaces or tab. Floating point numbers must contain a decimal point. Only the decimal point (“.”) is allowed. Commas (“,”) as the decimal mark are not allowed.


Example file
Lake Victoria   //{string} Site name and any other useful information
10.11.2013  //{string} Survey date 
19950    //{number} Line name
-10450   //{number} Station name
100           20           0            0     //{number} transmitter side length (m), receiver side length (m), transmitter-receiver spacing (distance between loop centers, in m), angle of the horizontal axis through the transmitter center to the receiver direction.
1   // {number} current * turns 
-393          -10450         19950 //{number} Z  X  Y 
22 //{number} Number of channels 
0.022         1440.3   //{number} Channel time (ms), emf (mV) 
0.026         974.5 
0.03          630.8 
0.035         403.1 
0.043         253.7 
0.051         132.2 
0.059         76.78 
0.067         47.34 
0.075         29.27 
0.083         18.81 
0.091         12.98 
0.101         9.398 
0.117         6.154 
0.133         3.724 
0.149         2.371 
0.165         1.630 
0.181         1.218 
0.197         0.9872 
0.213         0.8619 
0.233         0.7087 
0.265         0.5898 
0.297         0.4569 


File can contain optional information, such as resistivity section parameters or lengths of transmitter loop sides along and across the profile (if they are different). The side length (line 5) of rectangular loops is found as square root of the loop area.

See below for an example file. Optional parameters are in violet-red.

Lake Victoria   
10.11.2013  
19950   Line 
-10450   Station
98           20           0            0     Transmitter side, receiver side, transmitter-receiver distance, angle
1 120 80  Current*turns ,transmitter side along line, transmitter side across line  // {number} current * turns (A*n), Tx Side Along Line (m), Tx Side (Across) 
-393          -10450         19950
22                               3//{number} Number of resistivity layers.
0.022         1440.3       2500      30//{number} Resistivity (Ohm·m)  Layer thickness (m)
0.026         974.5         30        5
0.03           630.8         300       basement
0.035         403.1 
0.043         253.7 
0.051         132.2 
0.059         76.78 
0.067         47.34 
0.075         29.27 
0.083         18.81 
0.091         12.98 
0.101         9.398 
0.117         6.154 
0.133         3.724 
0.149         2.371 
0.165         1.630 
0.181         1.218 
0.197         0.9872 
0.213         0.8619 
0.233         0.7087 
0.265         0.5898 
0.297         0.4569 
ProcessingHistory=(Raw_1_0.pod61)Stack<3>TruncMean<20%>NormToCur<9.181>MedianF>// There follow additional parameters inactive while file loading
MeasurementAccuracy=
MinTime=0E+00|MaxTime=5E-03|MReg=2|Nakopl=250|EarlyTimesMode=True|NumberOfDiaps=11|LimitAmplTo2FirstDiap=5|Noise50HzEnabled=True|IsHighNoiseLevel=True|LimitAutoAmplCoeff=True|NotCompensate=False|OverflowPointsToIncreaseKP=4|ReceiverSyncTpause=5E-03|ReceiverSyncTtok=5E-03|Tfcommut=2E-06|Trecv=2E-06|TPause=5.893E-03|Ntok=3|Ucomp=2.282E-05|Synchronization=0|UseTransitionCoeffsLimitations=False|TransitionCoeffsLimitationFirstRangeNumber=13|TransitionCoeffsLimitationLastRangeNumber=10|LowerTransitionCoeffsLimit=3|UpperTransitionCoeffsLimit=7
0   1         0     1     
1   1         2     1     
2   2         4     1     
3   4         1     2     
4   8         1     3     
5   16        0     2     
6   32        0     2     
7   64        0     2     
8   128       0     2     
9   256       0     2     
10  512       0     2     

=== Measurement parameters ===
500            Number of sweeps for the sounding
0              Synchronization: Internal
5              Max gate time [ms]
25.58          On-time,  [ms]
8.53           Off-time [ms]
9.18           Transmitter current [Amp]
2 1            Length of transmitter turn off ramp [µs] calculated automatically
2              Receiver inertia [µs]
4              Total delay [µs]
1              Normalise by Current
0 79           First channel Last channel
1              Measure current

Receiver id: 9
Program version: 2.3.353
Firmware version: 1.318