Intelligent Vibrating Wire Piezometer

The sensing core is a proven vibrating wire element, tensioned and sealed inside a stainless steel housing that has seen decades of service in embankment dams, deep excavations, and tidal barriers. What we have added is not fundamentally new physics—it is signal conditioning that holds calibration coefficients stable when your cable run stretches past 500 meters, and a thermistor circuit that tracks temperature shift with a repeatability you can rely on regardless of which readout unit is on site that day. Field crews tell us that the difference shows up in the data: less scatter in the nightly download, fewer spikes during electrical storms, and an install process that does not require a technician reading a manual for the first time. We stock sensor ranges from 70 kPa to 3 MPa, each one paired with a low-air-entry or high-air-entry filter stone depending on whether you are monitoring a sandy aquifer or a low-permeability clay. Because we build the sensors in our own facility, we can adjust the diaphragm thickness and transducer body length for projects where a short sensor zone is critical, or where the groundwater chemistry demands a different grade of stainless steel. The same engineering team that handles the customization also supports your site technicians after delivery, walking them through saturation procedures and helping them set up the datalogger channels correctly—something that matters when the piezometer is going into a borehole 80 meters deep and any misstep means lost time.