Example 23: corr_irr - irradiance

This equation computes first a temperature corrected irradiance value in Volts:

Then applies a linear equation to convert to final units:

where

c0, c1 are calibration coefficients.
x0, x1, x2 are coefficients required to convert the raw data in Volts.
x3, x4, x5 are the temperature correction coefficients.
n0 is the index of the temperature of the sensor channel.
T_sensor is the temperature of the sensor in °C.
Irr_{tempcompensated} is the measured irradiance in Volts and compensated in temperature.
Irr_calibrated is the measured irradiance in final calibration units.

Examples

CODE

>> channel 3 type
<< channel 3 type = irr_01

Confirm the channel type.

CODE

>> calibration 3 datetime = 20171201000000, c0 = 0.000, c1 = 1.0000

Set the core coefficients.

CODE

>> calibration 3 datetime = 20171201000000, x0 = 9.983, x1 = 0.2003, x2 = 1.000, x3 = 0.0721, x4 = 0.1049, x5 = 21.29

Set the cross-channel correction coefficients.

CODE

>> calibration 3
<< calibration 3 type = irr_01, datetime = 20171201000000, c0 = 0.0000, c1 = 1.0000, x0 = 9.983, x1 = 0.2003, x2 = 1.000, x3 = 0.0721, x4 = 0.1049, x5 = 21.29, n0 = 7

Request confirmation of all calibration coefficients.