Mini Disk Mini Disc Infiltration Instrument

Main applications

• Monitor soil water pressure, hydraulic conductivity, and other permeability properties
• Study the migration law of pollutants
• Research on the sustainability of ecosystems
• Groundwater recharge monitoring
• Calculate soil profile water flux and design irrigation and drainage system engineering

working principle

Mini Disk is divided into two chambers, both of which need to be filled with water. The upper chamber (bubble chamber) is used to control the degree of siphon, and the water pressure is controlled by adjusting the height of the siphon tube; The lower chamber is like a graduated cylinder, marked with a scale in milliliters. A certain volume of water in the lower chamber will permeate into the soil at a rate controlled by a siphon tube. The bottom of Mini Disk is a porous fusion bonded stainless steel base, which ensures that water inside the tube does not leak into the open air, and the small diameter base facilitates measurement on a relatively horizontal soil surface.

Once the Mini Disk is placed on the soil surface, the water in the lower chamber will begin to seep into the soil, and this infiltration rate is influenced by the hydraulic properties of the soil itself; As the water level drops, the volume of water in the pipe can be recorded at certain intervals (such as every 30 seconds for sandy loam soil), and then the water level values at each time can be added to the electronic spreadsheet of the random software to automatically calculate the hydraulic conductivity value.

technical indicators

Origin and Manufacturer:the United StatesMETERCompany_{(Former Decagon)}