Description
The SOFO VII/MuST Portable Reading Unit is a universal reading unit able to measure both SOFO (Interferometric) and MuST (Fiber Bragg Grating) sensors.
The SOFO VII/MuST Portable Reading Unit is a universal reading unit able to measure both SOFO (Interferometric) and MuST (Fiber Bragg Grating) sensors. The Portable measurement units employ proven con-tinuous swept laser scanning technology. They include a NIST traceable wavelength reference that provides continuous calibration to ensure system accuracy over long term operation. The high dynamic range and output power allow high resolution to be attained even for long fiber leads and lossy connections. The SOFO VII MuST Portable Reading Unit allows measuring 4 channels. On each channel it is possible to connect up to 5 SOFO sensors (external 1×5 splitter needed) and from 7 to 25 MuST FBG sensors (depending on sensor type, see sensor datasheets for details). The unit contains a PC that provides data logging and remote interfacing functionalities. The main features are:
Robustness & portability: 24/7 operation ensured by clever design, careful selection of components (electronic, optical, mechanical), compact assembling and rugged carrying case optimized for field use.
High interrogation capacity: broadband tuning range and 4 parallel optical channels allowing the simultaneous measurement of a large number of sensors.
Options: SOFO sensor 1×5 splitters
SPECIFICATIONS
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 | Max 7 MuST (FBG) Deformation sensors Up to 12 Strain FBG sensors Up to 25 Temperature FBG sensors |
| Calibration: | None, not required | NIST traceable wavelength reference |
| Optical Connectors: | E-2000 PC (8°), patch cord or splitter needed | E-2000 AC (8°) |
| Dynamic range: | N.A. | >50 dB |
| Measurement time: | < 2 s (incl. SDB writing) per channel | < 2 s (incl. SDB writing) per channel |
| Autonomy: | Up to 3 hours, with 1 battery pack; extra battery available upon request | |
| Available channel count: | 4 channels total, software configurable between SOFO and MuST FBG | |
Specifications
| AC power supply: | 230 V 50 Hz / 110 V 60 Hz Auto detect |
| Nominal consumption: | 45 Watt (Peak 90W) |
| Communication: | RJ45 Ethernet; USB |
| Control interface: | 12” touchscreen GUI; Ethernet TCP / IP; USB |
| Data logging functions: | Sampling; archiving |
| Data logging format: | mySQL database; Excel™ compatible files |
| Dimensions: | ~ 360 mm x 275 mm x 100 mm |
| Weight: | ~ 7,3 kg – Aluminum enclosure |
| Operating temperature: | +10°C to 40°C |
| Relative humidity: | <90%, non-condensed |
| Operating temperature: | +10°C to 40°C |
