BLY-FT100 · 厘米级分布式光纤测温系统
厘米级定位，适合电缆接头、母线连接点及小尺度热点观察。
厘米级(0.05m级定位精度)分布式光纤测温系统
Centimeter-Level Distributed Temperature Sensing System
型号 / Model: BLY-FT100
采用皮秒级脉冲编码与FPGA + ARM架构，实现沿线温度测量与±0.05 m事件定位。2.5 km光纤按0.05 m间隔约形成50,000个采样点，16通道约800,000个采样点。采样点数量不等于独立空间分辨单元数量。
Picosecond pulse coding and FPGA + ARM processing provide distributed temperature measurement and ±0.05 m event location. A 2.5 km fiber sampled at 0.05 m yields approximately 50,000 points, or 800,000 across 16 channels. Sample count is not the number of independently resolved spatial elements.
典型应用 Typical applications
石油井下地层分析；地热及地下水分析；储能锂电池内部局部温升定位；氢能源产氢池温度均匀性；管道液体/气体微小泄漏；电力母线与管廊小热点预警；动力电缆热烧蚀预警；皮带机托辊轴承小热点监测等。
Downhole formation analysis in oil wells; geothermal and groundwater analysis; local temperature-rise localization inside lithium battery storage systems; temperature uniformity monitoring for hydrogen production cells; minor liquid/gas leakage detection in pipelines; small hotspot warning for power busbars and utility tunnels; thermal ablation warning for power cables; and small hotspot monitoring for idler bearings of belt conveyors.
测量核心不依赖外部PC操作系统，内部电路采用三防涂覆；可选内置Windows工控机用于本地显示。
The measurement core is independent of the external PC operating system; internal circuits are conformal-coated. An internal Windows industrial PC is optional for local display.
空间分辨率、采样间隔与定位精度为不同指标。温度精度随光纤长度、采集时间、温区及光缆配置变化；各项最优指标不代表在同一配置下同时达到。
Spatial resolution, sampling interval and location accuracy are distinct quantities. Temperature accuracy depends on fiber length, acquisition time, temperature range and cable configuration; optimum values are not necessarily simultaneous.
技术参数 Technical specifications
| 参数项目 / Parameter | 参数值 / Specification |
|---|---|
| 光纤类型 / Fiber Type | 62.5/125 μm多模光纤 62.5/125 μm multimode fiber |
| 测量距离 / Measurement Range | 2.5 km |
| 空间分辨率 / Spatial resolution | 0.15 m（10%–90%阶跃响应） 0.15 m (10%–90% step response) |
| 定位精度 / Positioning Accuracy | ±0.05 m |
| 采样间隔 / Spatial sampling interval | 0.05 m（硬件空间采样间隔） 0.05 m (hardware spatial sampling interval) |
| 测量时间 / Measurement Time | ≤3 s/km，可配置；温度精度表对应30 s测量时间 ≤3 s/km, configurable; stated temperature accuracy uses 30 s measurements |
| 温度测量范围 / Temperature Range | -40°C to 200°C （取决于光缆类型） Depending on cable type |
| 温度测量精度 / Temperature Accuracy | ±0.3 °C @ 1 km；±0.5 °C @ 2.5 km（测量时间30 s） ±0.3 °C at 1 km; ±0.5 °C at 2.5 km (30 s measurement time) |
| 温度分辨率 / Temperature Resolution | 0.01 °C（软件显示分辨率） 0.01 °C (software display resolution) |
| 测量通道 / Channels | ≤ 16 |
| 光纤接头 / Optical Connector | FC/APC |
| 工作电源 / Power Supply | DC 9–36 V宽电压输入，标配DC 24 V；平均功耗≤10 W DC 9–36 V input; standard DC 24 V; average power consumption ≤10 W |
| 操作温度 / Operating Temperature | -10°C to 60°C |
| 存储温度 / Storage Temperature | -20°C to 70°C |
| 通信接口 / Communication Interfaces | 1路RJ45以太网、2路RS485、8路继电器输出 1 × RJ45 Ethernet, 2 × RS485, 8 relay outputs |
| 尺寸（宽×深×高） / Dimensions (W × D × H) | 482.6 × 458.4 × 89 mm |
| 重量 / Weight | 8 kg |
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