Two FBG strain gauges are installed on the annular elastic base to accurately measure the total amount of various load from bearing cables, anchors and bolts. Existing methods for measuring the axial forces in anchors an...
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How to measure anchor bolts using fiber optic gratings - GDR Telecom Site Energy Systems [PDF]
The FBG Anchor (Bolt) Dynamometer AD-01 is made of constant elastic, high-strength, and corrosion-resistant materials. Two FBG strain gauges are installed on the annular elastic base to accurately
Employing fiber optic sensors for torque control offers an advanced technical solution, leveraging the unique properties of optical transmission to ensure precise measurement of stresses
In this paper, a mine-used fiber Bragg grating anchor sensor technology is proposed.
The FBG Anchor (Bolt) Dynamometer AD-01 is made of constant elastic, high-strength, and corrosion-resistant materials. Two FBG strain gauges are installed
Through the use of a fiber optic sensor technology that has been developed by the authors, axial strain along the fully grouted rock bolt can be determined at a spatial resolution of 0.65 mm.
This article proposes a new self-sensing optical fiber anchor, made by improving the stirrer, to monitor the axial force on the bolt and the loose zone of surrounding rock.
This article deals with anchor tests instrumented with FBG deformation gauges of the root and the tendon of the pre-stressed strand anchor in a test field in the Central Bohemian Region.
In this short communication, we propose a smart anchor plate, a simple but effective device that uses fiber Bragg gratings (FBG) type optic sensor, to monitor the load level of the rock bolt.
A novel fiber Bragg grating (FBG) sensor technology is proposed for use in mines, specifically designed to enhance the monitoring of anchor rods.
This paper presents a new self-sensing anchor with embedded optical fibers (made using an improved stirrer) and proposes an intelligent tunnel rock monitoring system.