适用于表面安装或埋入混凝土和砂浆中。非常适合长期结构变形监测。在现场应用中有 20 年业绩记录。
SOFO 变形传感器是一种换能器，将距离变化转换为两根光纤之间路径不平衡的变化，可用 SOFO VII 读数单元测量。
传感器由两个主要部分组成：主动部分和无源部分。主动部分包含参考光纤和测量光纤，测量其两端之间的变形。无源部分对变形不敏感，用于将传感器连接到读数单元。输出端接 E-2000 连接器，带内置保护盖。传感器可快速轻松地表面安装或直接埋入混凝土和砂浆中。
主要特性
高分辨率
可埋入或表面安装
对温度不敏感
对腐蚀和振动不敏感
无需校准
易于安装
长期可靠性
防水
静态测量
应用领域
桥梁结构健康监测
建筑监测
大坝仪器监测
隧道变形监测
管道局部变形分析
| Length of active zone (LA, measurement basis): | 25 cm to 10 m, standard lengths 10 m to 20 m, customized lengths upon request |
| Length of passive zone (connecting cable): | 1 m to 100 m Customized lengths up to 2000 m upon request |
| Measurement range: | 0.5% of LA in shortening, 1% of LA in elongation |
| Measurement precision: | 0.2% of the measured deformation or better |
| Measurement resolution: | 2 μm RMS |
| Connecting cable protection options (see specific datasheet for details): | Standard (recommended for embedding or surface mounting in normal conditions)Stainless steel protecting tube (recommended in harsh conditions) Simple cable without protecting tube (recommended for laboratory conditions) |
| Operating temperature: | Standard active zone: -50 °C to +110 °C Special active zone (upon request): -50 °C to +170 °C Passive zone: -40 °C to +80 °C |
| Waterproof: | 5 bars (15 bars with extra protection on anchoring points) |
| Calibration: | Not required |
- Length of active zone
- Length of passive zone
- Connecting cable type
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