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DAS-UL10(N30) / (N70) · 第5代低频DAS

第5代N30/N70，面向低频响应与多频带相干解调。

第5代DAS-UL10（N系列）分布式光纤声波振动传感系统

5th Generation DAS-UL10 (N Series) Distributed Acoustic & Vibration Sensing System

DAS-UL10(N30) / DAS-UL10(N70) | 产品规格书 / Product Datasheet

产品概述 Product overview

用于长距离沿线振动与声学监测，通过相干解调获得相位与声振数据。根据工程距离、物理通道与抗衰落需求选择相应型号。
Designed for long-range distributed vibration and acoustic monitoring using coherent phase interrogation. Select the model according to distance, physical channels and fading-suppression requirements.

技术架构 Technology architecture

每个物理通道由3频带与X/Y双偏振构成6个内部解调分支，经相位对齐及加权复矢量融合输出；6个分支不等于6个外部光纤通道。
Each physical channel combines three bands and two orthogonal polarizations into six internal demodulation branches. Phase alignment and weighted complex-vector fusion produce the output; these branches are not six external fiber channels.

支持相位输出与声音还原；配合独立AI平台实现GIS展示、事件分类、模型训练、趋势分析和分级预警。
Phase output and audio reconstruction integrate with an external AI platform for GIS, event classification, model training, trend analysis and graded alarms.

型号选型 Model selection

型号 / Model	最大距离 Maximum range	物理通道 Physical channels	扫描频率 Scan rate	应用定位 Application focus
DAS-UL10(N30)	30 km	默认1通道，可选2通道 Default 1; optional 2 channels	30 km @ 2 kHz	高保真/超低频 / High fidelity
DAS-UL10(N70)	70-100 km	默认1通道，可选2通道 Default 1; optional 2 channels	70-100 km @ 1 kHz	旗舰长距离 / Flagship long-range

技术参数 / Parameter	DAS-UL10(N30)	DAS-UL10(N70)
最大探测距离 / Max. Sensing Range	30 km	70-100 km
产品定位 / Product Positioning	高端型 High-end	旗舰长距离型 Flagship long-range
供电与功耗 / Power	DC 24 V；约 20 W* DC 24 V; approx. 20 W*	DC 24 V；约 30 W* DC 24 V; approx. 30 W*
扫描频率 / Scan Rate	30 km @ 2 kHz（可调） 30 km @ 2 kHz adjustable	70 -100km @ 1 kHz（可调） 70-100 km @ 1 kHz adjustable

项目 / Item	规格 / Specification
核心架构 / Core Architecture	3频带 × 2偏振（X/Y）＝6路内部解调 3 bands × 2 polarizations (X/Y) = 6 internal demodulation branches
融合算法 / Fusion Algorithm	自适应旋转矢量和 Adaptive phase-aligned complex-vector fusion
传感光纤 / Sensing Fiber	9 μm/125 μm 单模光纤 9 μm/125 μm single-mode fiber
测量通道数 / Physical Channels	默认 1；可选并行 2 Default 1; optional 2 parallel
采样间隔 / Point Spacing	0.4 / 1 / 2 / 5 m 可设 Configurable
标距 / Gauge Length	0.4–25 m 可设 0.4–25 m configurable
报警响应 / Alarm Response	≤3 s（最小1 s，需满足采集及触发设置） ≤3 s (minimum 1 s; acquisition and trigger settings apply)
相位解调精度 / Phase Accuracy	0.1 rad（典型） 0.1 rad typical
声音还原 / Audio Reconstruction	支持 / Supported
振动解调频率 / Vibration Range	0.01 Hz–100 kHz*
频率指示精度 / Frequency Indication	±1 Hz（常规频段典型） ±1 Hz typical in conventional band
AI运算平台 / AI Platform	外置独立平台 External standalone
通信接口 / Data Interface	1×RJ45 千兆以太网 1×Gigabit Ethernet
协议 / Protocol	自定义相位数据协议 Custom phase-data protocol
光纤接头 / Optical Connector	E2000；可选 FC/APC E2000; FC/APC optional
激光安全 / Laser Safety	Class 1
工作温度 / Operating Temp.	-10 °C to 50 °C
存储温度 / Storage Temp.	-20 °C to 70 °C
尺寸 / Dimensions	482.6 × 326 × 132.8 mm
重量 / Weight	约 13 kg Approx. 13 kg

频率范围与光纤长度、扫描频率、标距及信噪比共同关联。100 kHz上限仅适用于满足高速采样条件的短距离配置，不表示30–100 km全长同时具有100 kHz有效带宽。常规逐点时间采样须满足奈奎斯特条件，并预留抗混叠滤波裕量。
Frequency range depends on fiber length, scan rate, gauge length and SNR. The 100 kHz upper limit applies only to short-range configurations with adequate high-speed sampling, not simultaneously across a 30–100 km fiber. Conventional per-point temporal sampling must satisfy the Nyquist criterion with anti-aliasing margin.

≤3 s报警响应需满足采集与触发设置；低频能力验证需覆盖足够长的观测时间，不能将0.01 Hz低频分析与1–3 s完整事件判别时间等同。
An alarm response ≤3 s requires compatible acquisition and trigger settings. Low-frequency validation needs a sufficiently long observation window; 0.01 Hz analysis does not imply complete event classification within 1–3 s.

AI平台与应用 AI platform and applications

AI平台项目 / AI Platform Item	建议配置 / Recommended Configuration
CPU处理器 / CPU	Core Ultra 5 225，10核10线程 Core Ultra 5 225, 10 cores / 10 threads
内存 / Memory	DDR5-5600，16 GB
存储 / Storage	1 TB，建议持续读写速度 ≥300 MB/s 1 TB; recommended sustained read/write ≥300 MB/s
平台架构与操作系统 / Platform & OS	Golang + Vue3；支持 Windows 10/11、Linux（如 Ubuntu 24.04）及国产操作系统 Golang + Vue3; supports Windows 10/11, Linux (e.g., Ubuntu 24.04) and domestic operating systems
AI算法平台 / AI Algorithm Platform	Web服务、FFT处理、相位解缠/信号分离、GIS、AI场景训练、分类识别、趋势分析、分级预警及多协议第三方对接 Web services, FFT, phase unwrapping/signal separation, GIS, AI training, classification, trend analysis, graded alarms and multi-protocol integration

上述为选配AI计算平台配置，主机功耗不包含该外置计算机。操作系统、浏览器及驱动兼容性按交付软件版本确认。
The AI computer is optional and excluded from the interrogator power rating. Confirm OS, browser and driver compatibility for the supplied software version.

典型应用 Typical applications

油气与长输管道 / Oil & Gas Pipelines
泄漏、异常振动、第三方施工、开挖、钻孔、敲击及盗采预警。
Leakage, abnormal vibration, excavation, drilling, impact and illegal tapping warning.

工业输送设备 / Industrial Conveyors
托辊、轴承、皮带撕裂、跑偏、摩擦、堵料和异物故障定位。
Roller, bearing, belt tear, misalignment, friction, blockage and foreign-object fault localization.

井下与能源 / Downhole & Energy
井下泄漏、流体活动、套管异常、作业过程及能源设施实时监测。
Downhole leakage, fluid activity, casing anomalies and process monitoring.

高端周界安防 / High-End Perimeter Security
机场、边境、监狱、军工设施、油库、变电站及工业园区。
Airports, borders, prisons, defense facilities, tank farms, substations and industrial parks.

交通与基础设施 / Transportation & Infrastructure
隧道、轨道交通、桥梁、矿山、海缆/陆缆等长距离振动监测。
Tunnels, rail transit, bridges, mines, submarine/land cables and long-range vibration monitoring.

科研与地球物理 / Research & Geophysics
地震、地球物理勘探、结构声学、声波传播、声音还原及算法验证。
Seismology, geophysical exploration, structural acoustics, wave propagation, audio reconstruction and algorithm validation.

设备接口 Equipment interfaces

接口布局、功耗与通道数按型号和出厂配置确定；光纤采样间隔、标距与事件定位误差分别定义，不能互相替代。
Interface layout, power and channel count depend on model and supplied configuration. Fiber sample spacing, gauge length and event-location error are distinct specifications.