Introduction:
Piezometers are used to measure ground water elevations and pore water pressures in bore holes, dams, embankments, concrete structures, pipelines, wells, mines, tunnels etc. It has a stainless steel pressure sensitive diaphragm with a tensioned steel wire. The VW piezometers convert water pressure on the diaphragm to be measured into an equivalent frequency signal. The pressure on the diaphragm changed by fluid pressure causes a change in tension of the wire. The wire excited by the plucking vibrates at its resonant frequency. The frequency signal transmitted through a cable to the readout unit.
Features:
- - Corrosion proof, rugged and robust construction
- - Lightning protection
- - Easy installation
- - Reliability, accuracy and simplicity in readings
- - High stability and low latency
- - Long range signal transmissibility
Specifications:
Sensor type | Vibrating Wire |
Sensor range | 20MPa |
Over range | - |
Resolution | 0.02% F.S. |
Accuracy | ±0.1% F.S. |
Temperature Range | - |
Non-Linearity | - |
Cable | 4-wire shielded polyurethane jacket |
Thermistor | - |