OC402
CTD data conversion: voltages to quantities real units

1) Fluorescence in mg/l (which is the same as kg/m^3) .

        Fluor=(CEC-CWO) * SF;
Where:
        % Fluorescence votage (V).
        CEC = data(:,column_FluorVoltage);
        % Calibration coefficients.
        CWO = 0.1930;% Vblank 
        SF =  9.93240000;

2) Oxygen in ml/l.

         Oxy=(Soc * (V + Voffset)) .* exp(Tcor * T) .* soly .* exp(Pcor*P);
Where:
         % Oxygen votage (V).
         V = data(:,column_OxygenVoltage); 
         % Temperature (degC), Salinity (psu), Pressure (db).
         T = data(:,column_Temperature);
         S = data(:,column_Salinity);
         P = data(:,column_Pressure);
         % Oxygen solubility (Ocean Toolbox, Phil Morgan).
         soly=sw_satO2(S,T); 
         % Calibration coefficients.
         Soc = 3.8530e-001;
         Voffset = -0.5697;
         Tcor = 0.0005;
         Pcor = 1.35e-004;

3) Transmission in %.

        Trans=M *V + B;
Where:
        % Transmission votage (V).
        V = data(:,column_TransmissionVoltage); 
        % Calibration coefficients.
        M = 21.4097;
        B = -1.2203;

