File Name
3D Vibrating Wire Crack Meter
Resource Type
Brochure| Language | Version | Download |
|---|---|---|
| English |
|
3D Vibrating Wire Crack Meter
RST’s 3D vibrating wire crack meter is a sophisticated instrument used for monitoring and measuring cracks in structures or geotechnical features.
Overview
RST’s 3D vibrating wire crack meter is a sophisticated instrument used for monitoring and measuring cracks in structures or geotechnical features. It’s designed to provide precise and reliable data on the width and displacement of cracks in three orthogonal directions (vertical, horizontal, and lateral), allowing for comprehensive analysis of crack behavior and structural integrity.
To obtain measurements, the crack meter is installed across the crack by securely anchoring it to both sides. The sensor utilizes the principle vibrating wire technology.
VIBRATING WIRE SENSOR SPECIFICATIONS
| DESCRIPTION | SPECIFICATION |
| Range | 25, 50, 100, 150, 200 mm |
| Accuracy | 0.1% F.S. |
| Thermistor Type | NTC 3K Ohms @ 25°C |
CABLE SPECS – FOR VIBRATING WIRE OR ELECTRICAL CRACK METERS
| PART # | DESCRIPTION |
| EL380004 | Two twisted pair cable with polyurethane jacket. |
| EL360008 | Four twisted pair cable with polyurethane jacket. (For use with Junction Box arrangement) |
Crack Meters are commonly used for:
- Monitor crack separation or convergence, in concrete structures.
- Monitor joints for movement caused by nearby geotechnical activity.
Alarm triggering when separation or convergence of two reference points reach a preset critical rate or value – requires use of data logger and GeoExplorer software or RSTAR Affinity digital suite.
ORDERING INFO (WITH GROUTABLE ANCHORS)
| RANGES | PART # |
| 25 mm | VWCM3D025 |
| 50 mm | VWCM3D050 |
| 100 mm | VWCM3D100 |
| 150 mm | VWCM3D150 |
| 200 mm | VWCM3D200 |
SUBMERSIBLE ORDERING INFO: (WITH ANCHORS)
| DESCRIPTION | PART # |
| 25 mm | VWCM3D025S |
| 50 mm | VWCM3D050S |
| 100 mm | VWCM3D100S |
| 150 mm | VWCM3D150S |
| 200 mm | VWCM3D200S |
Speak with an Expert
I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd