Fiber Bragg Grating Displacement Meter

Model：ZZ-FBG-DP100

 1、Summary

The Nanjing Zhunzhi ZZ-FBG-DP100 fiber optic grating displacement meter is mainly suitable for accurately measuring the relative displacement of two points. If a small range displacement meter is selected, it can measure surface cracks instead of using a crack meter, such as slip, settlement, and cracks in tunnels, underground engineering, slopes, building structures, etc. It can also synchronously measure the temperature of buried points。

The Nanjing Zhunzhi ZZ-FBG-DP100 fiber optic grating displacement meter mainly consists of a core elastic structure, a spring, and a connecting rod. The connecting rod is connected to the test piece, and the displacement changes that occur are stretched by the spring. The other section of the spring is connected to the core elastic structure, driving the elastic core structure to produce small displacement. The internal grating induction is used, and the reflected wavelength change is detected by the background demodulator to achieve the measurement purpose。

2、Performance Index

Project	Company	Reference Value
Standard Range	mm	5、25、50、100、200（Customizable）
Accuracy	mm	0.8%F·S
Resolving Power	mm	0.1 %F·S
Center wavelength of grating	nm	1525～1565
Working temperature range	℃	－30℃～＋80℃
Number of single channel sensors	Branch	6
Sensor lead out and connectors		Single ended 1m armored optical cable
Connection method between sensing heads		Parallel connection/flange connection/optical cable fusion