The Vibrating Wire Sister Bar is used to measure strain in concrete structures such as diaphragm/slurry walls, piles, tunnel lining, bridge abutments, foundations, dams etc. It contains of a hollow bar with vibrating wire strain gauge which is coaxially mounted inside it. On the two end sides the hollow bar is extended with 12 mm Ø reinforced bars.
This model is also available with a 16 mm Ø reinforced bar variant.
| Range | 2500 µ strain |
| Sensitivity | 1 µ strain |
| Maximum Ø x l (mm) | 26 x 1400 (for 12 mm Ø nominal-standard) 30 x 1400 (for 16 mm Ø nominal-standard) |
| Thermistor | YSI 44005 or equivalent |
| Temperature limit | |
| Protection | IP 68 |
| Cable connection | Four-core shielded 1 m long; specify |
GDS has a variety of instruments for hire, these Instruments, Readouts and Dataloggers are available for product hire on a short-term (fortnightly) or long-term (monthly) basis including, but not limited to, the following:
