Vibrating Wire Strain Gauge
Dynamic Embedment
The Model 3900 Embedment Strain Gauge is designed for the measurement of dynamic strains in concrete structures, earth fills and soils. It comprises a full bridge strain gauged proving ring coupled, between two flanges, with a spring and shaft. When the flanges move relative to one another, the tension in the spring changes and hence the strain in the proving ring. A PVC tube serves as a protective housing and holds the gauge at the desired initial tension.
| Specifications | |
|---|---|
| Standard Range | 5000 µε |
| Resolution | 0.025% F.S. |
| Accuracy¹ | ±0.25% F.S. |
| Nonlinearity | <1.0% F.S. |
| Temperature Range² | −20°C to +80°C |
| Active Gauge Length³ | 203 mm |
¹Accuracy established under laboratory conditions.
²Other ranges available on request.
³Other lengths available on request.