Fiber Optic Sensing Technology Products
Professional fiber optic sensing solutions providing high-precision and high-reliability monitoring technology for various industries
DAS-U1000 Distributed Fiber Optic Acoustic Demodulation Card
The DAS-U1000 distributed fiber optic acoustic demodulation card, independently developed by Shanghai Kunlian Technology, is a flagship DAS demodulation system designed for extreme environment monitoring and high-precision sensing applications. With 2-channel 1000MSPS sampling rate ADC, DAC conversion rate of 2500Mbps, and external reference clock support, it fully meets the stringent technical requirements for long-distance, high dynamic range, and high spatial resolution.
Product Overview
The DAS-U1000's greatest technical highlight lies in being the first to systematically solve the coupling constraints between spatial resolution, detection distance, and dynamic range in distributed fiber optic sensing systems. Through next-generation coherent noise modeling algorithms and polarization adaptive compensation mechanisms, it effectively suppresses signal degradation caused by coherent fading and polarization randomness, achieving spatial resolution better than 0.5 meters and high signal-to-noise ratio detection capability over tens of kilometers transmission distance.
The system adopts advanced FPGA parallel processing architecture, supporting real-time data processing and multiple demodulation algorithms, capable of adapting to different application scenario requirements. The product design fully considers the reliability requirements of industrial-grade applications, with excellent environmental adaptability and long-term stability.
Core Technical Advantages
Dual Noise Suppression Mechanism
Integrates coherent fading and polarization fading suppression algorithms, significantly improving weak event signal recognition accuracy.
Breaking Triple Bottleneck Limitations
Achieves relatively independent optimization of spatial resolution, detection distance, and dynamic range parameters.
Advanced FPGA Algorithms
Implements parallel signal processing and efficient analysis through embedded FPGA algorithms, greatly improving acoustic event recognition efficiency and analysis capability.
External Clock Synchronization Support
Can connect to high-stability reference clocks, enhancing system stability and accuracy in multi-channel, long-distance collaborative monitoring scenarios.
2-Channel 1000MSPS High-Speed Sampling
Supports large bandwidth, synchronous acquisition, capturing high-frequency vibrations and transient acoustic signals, meeting extreme environment monitoring requirements.
Spatial Resolution Better Than 0.5 Meters
Adopts high-precision time-domain demodulation structure, supporting sub-meter acoustic vibration positioning, especially suitable for structural detail response monitoring.
Technical Specifications
| Analog Input Channels | 2 channels |
| Maximum Sensing Distance | 60 km (maximum) |
| Spatial Resolution | 5 m (minimum) |
| Sampling Rate | 1000MSPS / per channel |
| Response Frequency | 1 Hz ~ 20 kHz |
| Dynamic Range | ≥ 95 dB @ 10 Hz |
| Coupling Method | DC coupling |
| Input Voltage Range | 2Vpp |
| Analog Bandwidth | 0 ~ 100 MHz |
| Bias Adjustment | ±1V adjustable |
| SFDR | Up to 88dBc |
| Internal Storage | 2 sets of DDR4 memory, 1 set 16bit 4GByte, 1 set 32bit 2GByte |
| Interface Type | PCI3.0 x8 interface |
| Operating Temperature Range | -20°C ~ 50°C |
| Demodulation Algorithm | Built-in IQ phase demodulation, can output raw or demodulated data |
| Trigger Output | Supports synchronous pulse output |
| System Compatibility | Windows / Linux |
Application Areas
Oil & Gas and Underground Pipeline Integrity Monitoring
Rapid identification of leaks, impacts, third-party interference and other abnormal behaviors.
Seismic and Geological Activity Detection
High-precision tracking of microseismic events and rock mass movement.
Large Infrastructure Health Sensing
For bridges, dams, high-speed rail tracks and other structural fatigue, crack, resonance detection.
Underwater and Perimeter Security Monitoring
Suitable for intrusion detection and potential target identification in complex environments.
Industrial Rotating Machinery Monitoring
Identifies abnormal vibrations, supports predictive maintenance.
DDS-HS 6800K Optical Frequency Domain Reflectometry System
The DDS-HS 6800K optical frequency domain reflectometry system adopts advanced optical frequency domain reflection technology, capable of achieving high-precision distributed fiber optic sensing measurements. The system features ultra-high spatial resolution and measurement accuracy, widely applied in structural health monitoring, geological disaster early warning and other fields.
Product Overview
The DDS-HS 6800K optical frequency domain reflectometry system adopts advanced optical frequency domain reflection technology, utilizing swept-frequency lasers and coherent detection technology to achieve high-precision measurement of scattering information along optical fibers. The system can simultaneously measure temperature and strain with millimeter-level spatial resolution and extremely high measurement accuracy.
The system adopts modular design, supporting various fiber types and measurement modes, capable of adapting to different application requirements. The product features excellent long-term stability and reliability, making it a high-end product in the distributed fiber optic sensing field.
Core Technical Advantages
Ultra-High Spatial Resolution
Spatial resolution can reach millimeter level, achieving precise positioning.
Wide Spectrum Scanning
Supports wide-range spectrum scanning, improving measurement accuracy.
Real-time Data Processing
Built-in high-performance processor for real-time data analysis.
Multi-parameter Simultaneous Measurement
Can simultaneously measure temperature, strain and other physical quantities.
High Stability Design
Adopts temperature compensation technology to ensure long-term stable operation.
Flexible Interface Configuration
Supports multiple communication interfaces and data formats.
Technical Specifications
| Measurement Distance | Maximum 70km |
| Spatial Resolution | 1mm |
| Strain Accuracy | 1 microstrain |
| Temperature Accuracy | ±1°C |
| Measurement Speed | 1Hz |
| Dynamic Range | 60dB |
| Light Source Power | 10mW |
| Working Wavelength | 1550nm |
| Interface Type | USB3.0/Ethernet |
| Data Format | HDF5/CSV |
| Operating Temperature | 0°C to 50°C |
| Storage Humidity | 10% to 90% |
| Power Requirements | 220V AC |
| Power Consumption | Less than 100W |
| Dimensions | 482×440×88mm |
| Weight | 15kg |
Application Areas
Structural Health Monitoring
Real-time health monitoring of large structures such as bridges and buildings.
Geological Disaster Warning
Early warning of geological disasters such as landslides and subsidence.
Industrial Process Monitoring
Safety monitoring of industrial processes in chemical and power industries.
FTS-T2000 Fiber Optic Temperature Sensing System
The FTS-T2000 fiber optic temperature sensing system is based on Raman scattering principle, capable of long-distance distributed temperature measurement. The system features high precision and high stability, widely used in temperature monitoring for power, petrochemical, tunnel and other industries.
Product Overview
The FTS-T2000 fiber optic temperature sensing system is based on Raman scattering principle, measuring temperature distribution by analyzing the intensity changes of Raman scattered light in optical fibers. The system has advantages of long measurement distance, high precision, and fast response, making it an ideal choice for distributed temperature monitoring.
The system adopts advanced optoelectronic technology and signal processing algorithms, capable of stable operation in harsh environments, widely used in temperature monitoring and fire warning for power, petrochemical, tunnel, mining and other industries.
Core Technical Advantages
High Precision Measurement
Advanced Raman scattering technology provides ±1°C measurement accuracy for precise temperature monitoring
Long Distance Monitoring
Single fiber can monitor up to 50km distance, suitable for large-scale distributed monitoring applications
Real-time Continuous Monitoring
Provides continuous real-time temperature monitoring with adjustable measurement cycles from 1 second to 10 minutes
High Spatial Resolution
1-meter spatial resolution enables precise localization of temperature anomalies and hotspots
Wide Temperature Range
Supports temperature measurement from -40°C to 200°C, suitable for various industrial environments
Intelligent Alarm System
Built-in intelligent algorithms support multi-level temperature threshold settings and automatic alarm functions for system safety
Technical Specifications
| Measurement Distance | Up to 50km |
| Spatial Resolution | 1m |
| Temperature Accuracy | ±1°C |
| Temperature Range | -40°C to 200°C |
| Measurement Cycle | 1 second to 10 minutes adjustable |
| Repeatability | ±0.5°C |
| Fiber Type | Single-mode fiber G.652D |
| Laser Power | Less than 10mW |
| Communication Interface | Ethernet/RS485 |
| Data Storage | Local storage 1TB |
| Alarm Function | Multi-level threshold alarm |
| Working Environment | -10°C to 50°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Power Requirement | 220V AC ±10% |
| Power Consumption | Less than 100W |
| Protection Level | IP65 |
Application Areas
Power Systems
Cable temperature monitoring to prevent overheating failures
Petrochemical
Pipeline temperature monitoring to ensure process safety
Tunnel Monitoring
Tunnel fire early warning to ensure traffic safety
FSS-S3000 Fiber Optic Strain Sensing System
The FSS-S3000 fiber optic strain sensing system adopts Brillouin scattering technology, capable of large-scale distributed strain measurement. The system features high precision, long distance, and anti-interference capabilities, making it an ideal choice for structural health monitoring.
Product Overview
The FSS-S3000 fiber optic strain sensing system is based on Brillouin scattering technology, obtaining strain and temperature information by measuring Brillouin frequency shift in optical fibers. The system features long measurement distance, high precision, and strong reliability, making it the preferred product for large-scale structural health monitoring.
The system adopts advanced optical design and signal processing technology, capable of stable operation in complex environments, providing reliable monitoring services for important infrastructure such as bridges, dams, and tunnels.
Core Technical Advantages
Brillouin Scattering Technology
Based on Brillouin scattering principle with extremely high measurement accuracy.
Ultra-long Distance Measurement
Measurement distance up to 100 kilometers.
High Precision Measurement
Strain accuracy can reach 1 microstrain.
Temperature Compensation
Automatic temperature compensation improves measurement accuracy.
Multi-point Simultaneous Measurement
Can simultaneously monitor thousands of measurement points.
Real-time Monitoring
Support continuous real-time monitoring and data analysis.
Technical Specifications
| Measurement Distance | 1-100km |
| Spatial Resolution | 0.5m |
| Strain Accuracy | ±2με |
| Strain Range | ±10000με |
| Temperature Accuracy | ±1°C |
| Measurement Time | 1-60 minutes |
| Repeatability | ±1με |
| Fiber Type | Single-mode fiber |
| Laser Type | DFB Laser |
| Communication Interface | Ethernet/RS485 |
| Data Format | ASCII/Binary |
| Working Temperature | -40°C to +70°C |
| Storage Temperature | -50°C to +80°C |
| Power Requirement | AC 220V±10% |
| Power Consumption | ≤50W |
| Chassis Specification | 19-inch standard rack |
Application Areas
Bridge Health Monitoring
Real-time monitoring of bridge structural strain changes, assessing bridge safety status, preventing structural damage, and ensuring traffic safety.
Building Structure Monitoring
Monitoring strain status of high-rise buildings, large venues and other structures, timely detecting structural anomalies, and ensuring building safety.
Geological Disaster Warning
Monitoring strain changes in geological structures such as slopes and tunnels, providing early warning for geological disasters, and protecting personnel and property safety.
FVS-V4000 Fiber Optic Vibration Sensing System
The FVS-V4000 fiber optic vibration sensing system adopts interferometric measurement technology, capable of detecting minute vibration signals. The system features high sensitivity, wide frequency response, and strong anti-interference capability, widely used in security monitoring and equipment condition monitoring.
Product Overview
The FVS-V4000 fiber optic vibration sensing system is based on fiber optic interferometric measurement technology, measuring vibration signals by detecting phase changes in optical signals within the fiber. The system has extremely high sensitivity and wide frequency response characteristics, capable of detecting nanometer-level displacement changes.
The system employs advanced signal processing algorithms and pattern recognition technology to accurately identify different types of vibration events, widely applied in perimeter security, equipment monitoring, traffic monitoring, and other fields.
Core Technical Advantages
Interferometry Technology
Based on fiber optic interference principle with extremely high sensitivity.
Wide Frequency Response
Frequency response range from 1Hz to 10kHz.
High Sensitivity
Can detect nanometer-level displacement.
Multi-Channel Design
Support simultaneous monitoring of multiple vibration channels.
Intelligent Algorithm
Built-in pattern recognition and event classification algorithms.
Remote Monitoring
Support remote monitoring and data transmission.
Technical Specifications
| Monitoring Distance | 50km |
| Spatial Resolution | 10m |
| Frequency Range | 1Hz to 10kHz |
| Sensitivity | 1nm displacement |
| Dynamic Range | 120dB |
| Channel Count | 1 to 16 channels |
| Sampling Rate | 25kHz |
| Light Source Type | DFB Laser |
| Detector | High-speed photodetector |
| Data Interface | Ethernet/USB |
| Storage Capacity | 1TB local storage |
| Working Temperature | -10°C to 60°C |
| Humidity Range | 10% to 90% |
| Power Requirement | 220V AC |
| Power Consumption | Less than 80W |
| Enclosure Protection | IP54 |
Application Areas
Perimeter Security
Perimeter intrusion detection for airports, prisons and other important facilities.
Equipment Monitoring
Vibration monitoring of rotating machinery, pumping stations and other equipment.
Traffic Monitoring
Vibration monitoring of railway, highway and other transportation facilities.
FPS-P5000 Fiber Optic Pressure Sensing System
The FPS-P5000 fiber optic pressure sensing system uses fiber Bragg grating technology to achieve high-precision pressure measurement. The system has advantages of corrosion resistance, electromagnetic interference resistance, and long-term stability, suitable for pressure monitoring in harsh environments.
Product Overview
The FPS-P5000 fiber optic pressure sensing system is based on Fiber Bragg Grating (FBG) technology, obtaining pressure information by measuring changes in grating reflection wavelength. The system features high precision, high stability, and corrosion resistance, particularly suitable for pressure monitoring in harsh environments.
The system adopts modular design, supporting simultaneous monitoring of multiple pressure points, with characteristics of fast response and long-term stability, widely applied in pressure measurement in petrochemical, hydraulic engineering, aerospace and other fields.
Core Technical Advantages
FBG Technology
Based on Fiber Bragg Grating with high measurement accuracy.
Corrosion Resistance
Fiber optic sensors are corrosion-resistant, suitable for chemical environments.
High Temperature Adaptation
Can operate stably in high temperature environments.
Multi-point Measurement
Multiple sensors can be connected in series on a single fiber.
Long-term Stability
Low sensor drift with excellent long-term stability.
Fast Response
Response time less than 1 millisecond.
Technical Specifications
| Pressure Range | 0 to 100MPa |
| Accuracy Level | 0.1%FS |
| Resolution | 0.01%FS |
| Working Temperature | -40°C to 200°C |
| Response Time | Less than 1ms |
| Long-term Stability | ±0.1%FS/year |
| Overload Capacity | 150%FS |
| Sensor Quantity | Up to 64 units |
| Light Source Type | Broadband light source |
| Demodulator Type | High-speed demodulator |
| Sampling Frequency | 1kHz |
| Communication Interface | Ethernet/RS485 |
| Power Supply | 24V DC |
| Power Consumption | Less than 30W |
| Protection Level | IP67 |
| Installation Method | Thread/Flange connection |
Application Areas
Petrochemical
Pressure monitoring of reactors, pipelines and other equipment.
Water Conservancy
Water pressure monitoring of dams, reservoirs and other hydraulic structures.
Aerospace
Pressure measurement of aircraft, rockets and other aerospace vehicles.