Example 23: corr_irr - Irradiance

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

$//<![CDATA[ \begin{array}{l}Irr_{tempcompensated} = x_2 \cdot (x_0 + x_1 \cdot R) + (x_3 + x_4 \cdot T_{sensor} + x_5 \cdot T_{sensor}^2)\end{array} //]]>$

Then applies a linear equation to convert to final units:

$//<![CDATA[ \begin{array}{l}Irr_{calibrated} = c_0 + c_1 \cdot Irr_{tempcompensated}\end{array} //]]>$

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

Confirm the channel type.

Set the core coefficients.

Set the cross-channel correction coefficients.

Request confirmation of all calibration coefficients.