Fiber Bragg Grating Sensor / HGG02 Fiber Bragg Grating Displacement Meter

The HGG02 fiber optic grating displacement gauge is primarily suitable for accurately measuring the relative displacement between two points. If a smaller range displacement gauge is selected, it can measure surface cracks, replacing crack gauges, for applications such as slippage, settlement, and cracks in tunnels, underground engineering projects, slopes, and building structures. It can also simultaneously measure the temperature at the buried point.

It is mainly composed of a core elastic structure, a spring, and a connecting rod. The connecting rod is connected to the test piece, and the displacement change is stretched by the spring. The other end of the spring is connected to the core elastic structure, which drives the elastic core structure to produce a tiny displacement, which is sensed by the internal grating and the change in reflected wavelength is detected by the background demodulator to achieve the measurement purpose.

Features

1. Stability: All products are sealed with special sealant, which greatly reduces the probability of zero drift of traditional sensors. Traditional sensors have a high probability of zero drift due to continuous creep within 10 months.
2. Temperature measurement function: The temperature compensation method is also different. The temperature compensation structure adopted not only has automatic temperature compensation function, but also can collect temperature.
3. Long distance transmission, good product reliability.

technologyindex

1. Measuring range: 5~200mm
2. Accuracy: <1.0%F.S
3. Resolution: <0.1%F.S
4. Temperature range: -20～80℃
5. Grating center wavelength: 1510～1590 nm
6. Lead connector: Single-ended 1m armored optical cable
7. Connection method: parallel connection, flange connection, optical cable fusion