A Tubular Soil Moisture Monitor is an integrated device used for long-term field monitoring of soil moisture and temperature. It appears as a vertically buried sealed plastic tube.
The sensor operates by emitting high-frequency detection waves. These waves can penetrate the tube wall and sense the dielectric properties of the surrounding soil, thereby directly calculating the soil's volumetric water content. This non-contact measurement method enables it to effectively resist interference from salts in the soil.
Along the sensor tube, multiple measurement points are set at different depths, allowing it to simultaneously acquire temperature and humidity data from multiple soil layers, from the surface to deep layers, completely presenting the vertical distribution of soil moisture.
Data collected by the sensor can be transmitted to remote monitoring platforms via wired or wireless methods. Its power supply typically relies on a combination of solar energy and batteries to adapt to off-grid field environments. Due to its high-grade sealed design, the sensor can operate stably in moist soil for extended periods.
During installation, it is necessary to drill a hole at the selected location, inject mud, and then vertically insert the sensor to ensure close contact with the surrounding soil. This design also facilitates later removal of the main sensor body from the pre-embedded tube for maintenance.
This sensor mainly serves fields such as precision agriculture irrigation decision-making, landscape water-saving management, and geological environment monitoring, providing users with scientific soil moisture data basis.
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