Automated Environmental Control Systems In Composting And Mushroom Growing

Calibration of Psychrometer

Humidity measurement by a psychrometer will be correct if the temperatures of dry and wet thermometers are measured properly and air flow rate around the wet thermometer is calculated properly, too. Dry and wet thermometers are calibrated in the same way as other temperature sensors - by comparing their readings with the results of standard thermometer. The difference between the readings of the dry and wet thermometers lowered into the water shall not exceed 0.1 degrees.