Products
A-5000 series Distributed Fiber Optic Acoustic Sensing System (DAS)
Product introduction
This series of distributed optical fiber acoustic sensor (DAS) can obtain the location of vibration, and reconstruct the amplitude and frequency of external acoustic field with high fidelity, using highly coherent Rayleigh backscattering lights.
This product benefits from a single-terminal nondestructive monitoring structure, excellent accuracy, long dynamic range, and high repeatability. This device can be controlled remotely, and process data on a remote server, which makes it easy to integrate with third-party systems.
Features
Dynamic compensation of frequency drifts to improve the system performance for low-frequency disturbance identification.
Artful signal processing algorithm to suppress the effect of polarization-dependent noise.
Deep data-mining to find useful information in massive stored data, to enhance the data extraction efficiency.
High-quality feature database construction under limited samples with simple training process.
Typical applications
High-speed railway wheel-rail health monitoring based on existing optical cables.
Monitoring the galloping of ice-covered high-voltage transmission lines.
Perimeter security and intrusion detection.
Geological hazard prediction, alarming and monitoring.
Heat and leakage monitoring in oil and gas pipelines
Specification
Parameter | Mini. | Typical | Max. | Unit |
传感距离 Sensing Range | 1 | 50 | 120 | km |
空间分辨率 Spatial resolution | 5 | 10 | 50 | m |
空间定位精度 Location accuracy | - | ±3.5 | - | m |
测频范围 Frequency Range | 2 | 500 | 20k | Hz |
垂直响应距离 Vertical Response Range | - | 15 | - | M |
中心波长Central wavelength | - | 1550. 12 | - | nm |
预热时间Preheating time | - | 15 | - | min |
可选防护等级 Optional Ingress Protection Rating | IP20 | IP43 | IP65 | - |