These measuring anchor, also known as rock bolt extensometer, is used to determine load exerted on rock bolts. It is a precision instrument designed to evaluate anchor system forces and their distribution within the length of the bolt and hence its safety and effectiveness. A digital caliper/micrometer depth gauge with a resolution of 0.01 mm is used to take readings. An electrical head assembly consisting of four potentiometric sensors is optionally available for electrical output.
An electrical head assembly consisting of four potentiometric sensors is optionally available for electrical output.
| Length | 3, 4, 6 m |
| Fixed points | 4 |
| Borehole diameter | 51 mm |
| Anchor diameter | 26.7 mm standard |
| ELECTRICAL MEASUREMENT | |
|---|---|
| Loading capacity | 250 kN |
| Range | ± 5 mm |
| Resolution | 0.01 mm |
| Enclosure | IP 65 |
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:
