适用于现场应用、可靠多用途的光纤数据采集器。坚固自包含的外壳和集成工业 PC。
SOFO VII 读数单元是一款通用读数单元,能够测量 SOFO(干涉式)和 MuST FBG(光纤布拉格光栅)两种传感器。该系统专为静态、长期测量设计。每个通道可通过软件配置为两种技术之一。SOFO VII 集成在紧凑的钢制外壳中,专为需要连续监测的任何结构中的永久安装而设计。SOFO VII 读数单元允许测量 4 或 8 通道。在每个通道上,可连接多达 5 个 SOFO 传感器(需要外部 1×5 分路器)和多达 25 个 MuST FBG 传感器(取决于传感器类型,详见传感器数据表)。单元包含一台现场 PC,提供数据记录和远程接口功能。SOFO VII 的主要特点是:选项选择灵活,允许客户配置针对其需求的系统,涵盖传感技术、数据记录能力、通信和温度范围。
主要特性
与 SOFO 传感器兼容
与 MuST FBG 传感器兼容
4 或 8 通道
结合 SOFO 和 FBG 技术
高分辨率和精度
无需校准
集成 PC,带 SDB 软件
自动和远程控制
以太网接口,便于组网
应用领域
桥梁结构健康监测 SHM
建筑监测
大坝仪器监测
隧道变形监测
管道局部变形分析
Performances
| SOFO Sensors Measurement | MuST FBG Sensor Measurement | |
| Measurement resolution: | 2 μm RMS | 1 pm |
| Linearity / Accuracy: | < 2 ‰ | ±2 pm |
| Sample rate: | 1 S/s (1Hz) | 1 S/s (1Hz) |
| Measurement range: | Max. 50 mm | 100 nm (1500 to 1600 nm) |
| Sensors per channel: | Max 5 SOFO Deformation sensors using optional 1×5 splitter | Max 7 MuST (FBG) Deformation sensors Up to 12 Strain FBG sensors Up to 25 Temperature FBG sensors |
| Calibration: | Not required | NIST traceable wavelength reference |
| Optical Connectors: | E-2000 APC (8°), patch cord or splitter required | E-2000 APC (8°) |
| Dynamic range: | N.A. | >50 dB |
| Measurement time: | < 2 s (incl. SDB writing) per channel | < 2 s (incl. SDB writing) per channel |
| Available channel count: | 4 or 8* channels total, software configurable between SOFO and MuST FBG |
Specifications
| AC power supply: | 230 V 50 Hz / 110 V 60 Hz Auto detect |
| External connections: | Ethernet connection, display and screen (optional) |
| Data logger capacity: | Typical 5 year of data with measurements every 1h. |
| Dimensions: | ~ 500 mm x 500 mm x 210 mm |
| Weight: | ~ 25 kg |
| Operating temperature: | 10°C to + 50°C | -40°C to + 50°C with heating option |
| Humidity: | 90% non-condensed |
10.2011 SOFO VII MuST Reading Unit
Options:
- 4 or 8 Channels
- Number of 1×5 splitters
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