Single-Point and Multi-Point Vibrating Wire Displacement Meters
The multi-point displacement meter can be equipped with appropriate anchor types based on borehole geological conditions, such as grouting anchor heads, hydraulic anchor heads, and grab ring anchor heads, to achieve excellent monitoring results.
BGK-A3/A6 single-point and multi-point vibrating wire displacement meters are installed directly in boreholes to monitor deformation or settlement displacement on multiple sliding surfaces and zones. In a 76 mm diameter borehole, up to 6 grouting anchor heads can be arranged.
BGK-A3 uses a high-strength stainless steel extension rod, while BGK-A6 uses a low coefficient of thermal expansion fiberglass rod. The instrument has a simple structure and is quick and easy to install. The matching BGK-4450 vibrating wire displacement sensor enables remote telemetry. It features high precision and sensitivity, excellent waterproof performance, and long-term stability, making it suitable for harsh environments. A built-in temperature sensor in the probe base simultaneously monitors ambient temperature.
BGK-A3-B soil settlement meter is equipped with a settlement plate and telescopic tube at the top, suitable for monitoring soil settlement in highway/railway subgrades, fills, or other similar structures.
The multi-point displacement meter can be equipped with appropriate anchor types based on borehole geological conditions, such as grouting anchor heads, hydraulic anchor heads, and grab ring anchor heads, to achieve excellent monitoring results.
| Model | BGK-A3 | BGK-A6 |
| Standard range | 50, 100, 200, 300 mm (other ranges can be customized) | |
| 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 0.5 MPa, 2 MPa or other water pressure | |
| Borehole size | ≥75 mm (single-point ≥50 mm), grouting anchor head only | |
| Number of points | ≤6 | |
| Transfer rod | Stainless steel measuring rod | Fiberglass measuring rod |

