2022The operation and maintenance of the steam permeameter in the Sichuan Chongqing region have been successfully completed

As an important facility for studying evapotranspiration and infiltration processes in the hydrological cycle, the evapotranspiration meter has always been of great concern to researchers. Our company is committed to the research and application of high-precision permeameters20For many years, we have provided long-term ecological hydrological process observation data for scientific research, which has been recognized by researchers. To thank the users for their support and trust over the years, our company has arranged for technical personnel to conduct comprehensive maintenance of the steam infiltration instrument in the Sichuan Chongqing region.

?Maintenance of steam permeameter at Sichuan Academy of Agricultural Sciences

The steam permeameter of Sichuan Academy of Agricultural Sciences is located in Zhongjiang County, Deyang City, and was built in2019year5The month has already passed since then3Year. The system consists of a tank, weighing system, bottom leakage system, soil sensor, rain bucket, and data acquisition system. Tank height1 meter, area 1 square meter, evapotranspiration measurement accuracy 0.1mm， Mainly used for measuring evapotranspiration in farmland. Researchers from the Academy of Agricultural Sciences conducted on-site calibration of the permeameter, and the results showed that the difference between before and after calibration was only0.11kg， Data accuracy up to 99.45%Its accuracy was unanimously recognized by the teachers present.

?Maintenance of steam permeameter at Sichuan Water Resources Research Institute

The steam permeameter of Sichuan Water Conservancy Science Research Institute was built in2020year9The month has already passed since then2Year. The evapotranspiration meter is located in the crop base of Chengdu Academy of Water Sciences, and its system configuration is consistent with that of Sichuan Academy of Agricultural Sciences. It is mainly used for monitoring the evapotranspiration of crops in the base. This maintenance provides on-site operation guidance and maintenance training for researchers, including weighing calibration, tank maintenance, rain gauge cleaning, and operation training of data remote transmission software.

?Maintenance of steam permeameter in the School of Water Resources and Hydropower, Sichuan Agricultural University

The steam permeameter of the Water Resources and Hydropower College of Sichuan Agricultural University was built in2021yearJune, it has been one year since then. The system consists of a tank, weighing system, bottom leakage system, soil sensor, rain bucket, wind speed and direction multi parameter sensor, and data acquisition system. The evapotranspiration meter is located in the school's teaching and research park, providing data support for monitoring the evapotranspiration of crops in the base. On the basis of evapotranspiration observation, this system adds wind speed and direction sensors to synchronously measure atmospheric pressure and humidity; Install soil moisture and water potential sensors inside the evapotranspiration tank to synchronously measure soil information parameters. The Envidata software platform that comes with the system is also compatible with the installation and data transmission of meteorological stations, evaporating dishes, and other devices.