Fiber Bragg Grating Demodulator for Bridge Tunnel Temperature Monitoring

• Customization: Available
• Installation Type: It Can Be Installed on The Surface of The Item
• Sensing Type: Optical Fiber Bragg Grating
• Model NO.: SRA-M
• Contact: Contact
• Output Signal Type: Analog Type,Digital Type
• Production Process: Fiber Optic Sensor
• Material: Optical Fiber
• Measuring Medium: Fiber Optic Bragg Grating Sensor
• IP Rating: AAA
• Certification: Withstand Voltage, Anti-Interference
• Customized: Customized
• Sampling Frequency: Synchronous Measurement Speed Is 1~100Hz
• Resolution Accuracy: Minimum Value 0.4nm
• Dimensions: 430mmx350mmx88mm
• Operating Voltage: 220V,50Hz
• Wavelength Range: 1525-1565nm
• Wavelength Spacing: Customizable
• Connection Type: FC/APC or FC/PC
• Specification: 1/4/6/8/16/32/64 channels (can be customized accor
• Trademark: Skyray
• Origin: China (Mainland)
• Production Capacity: 1000

Product Description

technical parameter
 

Number of channels	1/4/6/8/16/32/64 channels (can be customized according to customer requirements)
Capacity per channel	Temperature: 1-40; strain: 1-18; displacement: 1-12; pressure: 1-12
Wavelength spacing	Minimum value 0.4nm
Sampling frequency	Synchronous measurement speed is 1~100Hz
Dimensions	430mm × 350mm × 88mm
temperature	Resolution: 0.1 ° C; measurement accuracy: ± 0.5 ° C
strain	Resolution: <0.1% F.S.; Measurement accuracy: <0.3% F.S.
Displacement	Resolution: <0.1% F.S.; measurement accuracy <0.3% F.S.

Remote monitoring capability	40 km; special requirements can be customized
Operating Voltage	220V±10%,50Hz
Maximum power consumption	Typical value: 30W; maximum: 40W
Data interface	Support 10M Ethernet port, RS485 output
Working environment / working humidity	-10~55°C/0~80%RH without condensation
Storage environment / storage humidity	-20~80°C/0~95%RH without condensation
Wavelength range	1525~1565nm
Wavelength resolution	1pm

Wavelength repeatability	Typical value: 1pm; maximum: 2pm
Wavelength accuracy	±3pm
Optical interface	FC/APC
Dynamic detection range	Output optical power: 0 ~ -20dB, minimum detectable optical power: -70dB (allows fiber line loss close to 50dB, ie 100000 times)
software	Based on WINDOWS operating system; standard MODBUS communication protocol interface; provide DLL dynamic link library or define corresponding software communication protocol according to user requirements.

Introduction

The fiber Bragg grating sensor analyzer is suitable for signal demodulation and sensor data acquisition of fiber grating temperature, strain, pressure, displacement and other types of fiber grating sensors.

The fiber Bragg grating sensor analyzer adopts high-power laser light source and high-speed multi-channel parallel light detection technology. Compared with the traditional ASE light source technology, the output light power of the light source is up to 85%, and the output power of the light source is increased by more than 100 times. The cost is reduced by 50%. The effective service life of the light source is increased by more than 10 years, and the weak fiber grating sensing signal caused by the optical fiber transmission line loss of the engineering field or the cascade fault of the optical splitter can be accurately detected.

The fiber Bragg grating sensor analyzer has 1-64 simultaneous measurement channels. The synchronous scanning frequency can be selected from 1 to 100 Hz. The acquisition time of each measurement channel is strictly synchronized. Each channel can be connected with 1-40 sensors. Online calibration of the wavelength reference module eliminates the need for calibration after delivery and guarantees ±1 pm measurement accuracy over the operating temperature range.

The fiber Bragg grating sensor analyzer has built-in low-power embedded processor, which is stable and reliable. It takes into account the long-term online monitoring in the industrial measurement field and the mobile measurement in the field. It has both portable and desktop chassis specifications. Flexible choice of demand.

Applications

Online monitoring of power and chemical equipment temperature
Industrial fire alarm automatic alarm
Industrial production temperature and pressure measurement
Bridge structure health monitoring
Dam stress and deformation monitoring
Features
High precision
High reliability
Fast measurement
1-64 channel capacity for smooth expansion
Compatible with similar fiber grating sensors from domestic and foreign manufacturers