FBG Pressure Ring
Used for load and prestress monitoring of anchor cables, anchor rods, and stay cables.
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- High precision, high resolution
- No electromagnetic interference
- Temperature resistant, corrosion resistant
- Integrated packaging
- Stable performance
Detailed Introduction
The FBG pressure ring integrates the fiber Bragg grating sensing unit into a hollow ring structure. During installation, it is threaded into anchor cables, anchor rods, or stay cables, and reflects load and prestress status through wavelength changes. Resolution 0.05% F.S., accuracy 1% F.S., pressure range covers 60～1500 (T), center wavelength 1510～1590 nm, uses ordinary single-mode fiber. It is immune to electromagnetic interference, resistant to temperature and corrosion, adopts integrated packaging, is relatively quick to install, reusable, and has strong resistance to eccentric load. Pressure range and dimensions support customization. Suitable for geotechnical and structural health monitoring projects that require long-term monitoring of the stress state of anchoring systems. For specific configurations, prices, and delivery arrangements, please contact us for confirmation.
- Resolution 0.05% F.S., accuracy 1% F.S., suitable for prestress monitoring sensitive to load changes
- Fiber Bragg grating sensing principle, immune to electromagnetic interference, suitable for complex electromagnetic environments such as substations and tunnels
- Hollow ring structure, directly threaded into anchor cables, anchor rods, or stay cables for installation, integrated packaging, relatively quick on-site installation
- Resistant to temperature and corrosion, reusable, strong resistance to eccentric load, suitable for long-term monitoring projects
- Pressure range 60～1500 (T), center wavelength 1510～1590 nm, pressure range and dimensions can be customized according to the project
- Feibo Zhigan provides Chinese and English page materials, facilitating technical communication for domestic and international projects
| Product Name | FBG Pressure Ring |
| Product Category | Fiber Bragg Grating Sensor |
| Resolution | 0.05% F.S. |
| Pressure Range | 60～1500 (T), or customize a larger range |
| Center Wavelength | 1510～1590 nm |
| Accuracy | 1% F.S. |
| Fiber Type | Standard Single-mode Fiber |
| Dimensions | Customizable |
Applications
- Long-term monitoring of slope anchor cable prestress, to grasp the trend of anchoring force changes
- Monitoring of anchor bolt loads in mines and tunnels, to evaluate the stress state of the support system
- Monitoring of bridge cable loads, collecting data in conjunction with fiber Bragg grating demodulation equipment
- In geotechnical engineering and structural health monitoring projects, force measurement points that require resistance to electromagnetic interference
- In scientific research or engineering tests, where pressure rings need to be reused for multiple groups of anchor cable loading tests
Purchasing & Delivery
FBG pressure rings support customization of pressure range and dimensions. Before purchasing, please provide the specifications of the anchor cable, anchor bolt, or cable, the required pressure range, the center wavelength requirements, and the project quantity, and we will assist in confirming the model and configuration. For price, minimum order quantity, packaging method, and delivery time, please contact us for confirmation. Both Chinese and English materials can be provided, facilitating communication for domestic and international projects.
Service & Support
We provide selection assistance and technical communication for FBG pressure rings. If you are not sure whether the pressure range, dimensions, or center wavelength match your existing demodulation equipment, you are welcome to contact us, and we will assist in confirming according to your application scenario. You can also contact us for technical issues during installation and use. For the specific arrangements for warranty and after-sales support, please contact us for confirmation.
FAQ
What kind of product is an FBG pressure ring?
The FBG pressure ring is a fiber Bragg grating sensor from Fibersensing, featuring a hollow ring structure with a fiber Bragg grating as the sensing core. It is used to measure the load and prestress of anchor cables, anchor rods, and stay cables, making it suitable for geotechnical and structural health monitoring projects.
What are the resolution and accuracy of the FBG pressure ring?
Resolution 0.05% F.S., accuracy 1% F.S., pressure range 60–1500 (T), center wavelength 1510–1590 nm, using standard single-mode fiber.
Can the pressure range and dimensions be customized?
Yes. The pressure range and dimensions can be customized according to project requirements. Please provide the specifications of the anchor cable, anchor rod, or stay cable and the required pressure range, and we will assist in confirming the configuration.
What monitoring scenarios is the FBG pressure ring suitable for?
It is mainly used for load and prestress monitoring of anchor cables, anchor rods, and stay cables, including geotechnical and structural health monitoring scenarios such as slopes, mines, tunnels, and bridges. Fiber Bragg grating sensing is immune to electromagnetic interference and is suitable for complex electromagnetic environments.
How can I obtain a quotation and delivery time for the FBG pressure ring?
Please contact us with the required pressure range, size, center wavelength, and quantity, and we will assist in confirming the model, price, and delivery time.
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