Transactions of Nanjing University of Aeronautics & Astronautics
Calibration Method of Capacitive Soil Moisture Sensor
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Abstract:
Soil properties and water content vary from place to place. The calibration method based on capacitive soil moisture and humidity sensor is carried out. The sensor readings are compared with the mass water content measured by the oven dried method， and the calibration formula of sensor reading and mass moisture content is established. Results show that the sensor reading has a good linear relationship with the mass water content measured by the oven dried method， and has high precision. It can calibrate the mass moisture content of the data obtained from the moisture migration test in the soil column.
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Clc Number:
U416.1
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