Fiber Bragg Grating Sensor / HGG04 Fiber Bragg Grating Anchor Cable Meter

The HGG04 fiber optic grating anchor gauge is mainly used for measuring the loads of anchor cables, rock anchors, anchor bolts, or arch supports, as well as other heavy loads.

The anchor cable meter itself is a high-strength alloy steel cylinder. Anchor cable dynamometers with different loads are equipped with 3 to 6 high-precision vibrating wire sensors, which can monitor the total load acting on the anchor cable dynamometer. At the same time, by measuring the changes in each sensor, uneven loads or eccentric loads can also be obtained. The built-in temperature sensor has a temperature measurement function, and a dedicated multi-core anti-interference shielded cable is used to transmit electrical signals containing load and temperature information. The measured value is not affected by the cable length. Good stability and fully waterproof sealed structure design are suitable for long-term monitoring of load changes of anchor cables in various harsh environments.

Features

1. Easy to install, can be used for both real-time and short-term monitoring, and can be reused;
2. It is suitable for projects with small changes in ambient temperature, occupies less wavelength bandwidth resources, has high batch practicability, and saves overall project costs;
3. The pigtail uses PU-coated armored optical cable, which has excellent heat resistance, corrosion resistance and aging resistance, and is suitable for outdoor survival environments;
4. Good stability and high reliability.

technologyindex

1. Range: 500KN
2. Resolution: <0.1%F.S
3. Non-linearity: <1.0%F.S
4. Temperature range: -20～80℃
5. Grating center wavelength: 1510～1590 nm
6. Reflectivity: ≥90%
7. Pigtail: PE-coated armored optical cable, 1.5m at each end
8. Connection method: fusion or FC/APC connector
9. Number of strings: Customized as required