Part 1: Calibration of CO2 Sensors
Recently, CO2 sensors were
obtained for measuring the amount of CO2 in order to determine the
rate of photosynthesis from automotive fuels. However, before determining this,
the actual devices must be calibrated because they are not accurate to each
other.
A simple test will be conducted to find the deviation in accuracy in each sensor. First, the sensors will be placed in a closed container will CO2 inserted. The container will be covered with a bag to limit the amount of air exchange that the container has with its surroundings. The sensors will measure the amount of CO2 in the container over time. This calibration will be done thrice to improve the accuracy of the difference between the two carbon dioxide meters. If this is inaccurate, then the efficiency calculations later on based on the tests done with these meters will be inaccurate. The following video demonstrates how to do the calibration of the carbon dioxide meters to one another.
The results from this test will be plotted and compared. This should show two decaying functions over time. Then, the difference between the concentrations between the two will be plotted. This should be a linear line, with the slope of the line being the rate in which each sensor is different from the other. Finally, the average of this rate will be calculated to find the actual median between the two sensors to get a more accurate reading of the amount of CO2.
A simple test will be conducted to find the deviation in accuracy in each sensor. First, the sensors will be placed in a closed container will CO2 inserted. The container will be covered with a bag to limit the amount of air exchange that the container has with its surroundings. The sensors will measure the amount of CO2 in the container over time. This calibration will be done thrice to improve the accuracy of the difference between the two carbon dioxide meters. If this is inaccurate, then the efficiency calculations later on based on the tests done with these meters will be inaccurate. The following video demonstrates how to do the calibration of the carbon dioxide meters to one another.
The results from this test will be plotted and compared. This should show two decaying functions over time. Then, the difference between the concentrations between the two will be plotted. This should be a linear line, with the slope of the line being the rate in which each sensor is different from the other. Finally, the average of this rate will be calculated to find the actual median between the two sensors to get a more accurate reading of the amount of CO2.
