Vibrating Wire Surface Crack Gauge
BGK4420 vibrating wire surface crack gauge is suitable for installation on building surfaces for long-term monitoring of surface crack or joint opening/closing in harsh environments.
BGK4420 vibrating wire surface crack gauge is suitable for installation on building surfaces for long-term monitoring of surface crack or joint opening/closing in harsh environments. The universal joints at both ends allow for a certain degree of shear displacement. The built-in temperature sensor can simultaneously monitor the ambient temperature at the installation location. Some optional supporting equipment can be added to form void joint gauges, 2-way or 3-way joint gauges, which can be used for monitoring the displacement of the concrete face of rockfill dams, expansion joints or surrounding joints.
| Standard range | 12.5、25、50、100、150、200、250、300mm |
| Nonlinearity | Straight line: ≤0.5%FS; polynomial: ≤0.1%FS |
| Resolution | 0.025%FS |
| Temperature range | -20℃～+80℃ |
| Water pressure resistance | It can be customized on request to resist 2 MPa, 3 MPa or other water pressure. |
| Gauge length | Depends on range |
| Diameter | 12 mm (column body) / 25 mm (coil) |
