Digital Ground Water Level Recorder ( DWLR )
:- Pizometer
A piezometer is a device designed to measure the pressure (more accurately, the piezometric head) of groundwater at a specific location. It provides valuable insights into groundwater behaviour, seepage patterns, and the effectiveness of seepage control methods.
Components of a Piezometer:
Casing: Typically made of PVC or stainless steel, the casing is installed vertically into the ground.
Filter: Prevents soil particles from entering the casing, ensuring accurate measurements.
Water Level Sensor (Transducer): Measures the pressure exerted by groundwater and converts it into an electrical signal.
Traditional vs. Digital Piezometers:
Traditional piezometers require manual measurements, which can be time-consuming and prone to human error.
Digital Water Level Recorders (DWLRs) take piezometer functionality to the next level:
Automated Data Collection: DWLRs automatically collect data, eliminating the need for manual readings.
Real-Time Monitoring: They provide real-time information on groundwater levels.
Reduced Error: By minimizing human involvement, DWLRs enhance accuracy.
Applications of Piezometers:
Groundwater Monitoring: Piezometers help determine groundwater levels and flow patterns.
Soil Load Bearing Capacity: Investigate the effect of water in soil or rock pores on load-bearing capability.
Phreatic Line: Define the phreatic (water table) line.
Compliance with CGWB:
Piezometers assist in complying with the Central Ground Water Board’s (CGWB) regulations.
Rainwater Collection Evaluation: Assess the effectiveness of rainwater collection methods.
Crop Planning and Drought Forecasts: Useful for agriculture.
Telemetry Piezometers:
Some piezometers come with telemetry capabilities, allowing remote data transmission.
Telemetry-enabled DWLRs provide long-term solutions for monitoring liquid pressure in boreholes or wells.
They offer real-time data on groundwater levels, temperature, and conductivity.
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