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Advantages
l Rugged package protection
l Stable and accurate detection signal
l Fast, simple, permanent installation
l Multiplexing and multiaccess capabilities reducing cabling configuration
l Ideal remote and long-term sensing ability
l Combinable with other WASAN-series sensors
l Supportable for both surface mounting and embedded package
Applications
l Suited for harsh environments such as structural health monitoring in civil engineering and heaven duty machinery
l Applicable for petroleum and petrochemical fields such as pipeline leakage detection
l To be used as a reference for temperature compensation of other sensor measurands
Description
The WASAN-OFS-T01 is a rugged temperature sensor based on optical Fiber Bragg Grating (FBG) sensing technology. It is qualified for reliable and accurate temperature measurement in harsh environments.
With a high-strength steel package this sensor possesses excellent mechanical properties to ensure enhanced fatigue resistance and absolute temperature measurement. The sensors can be embedded in the pouring concrete structure or installed on the surface of the measured object by strapping in just a few minutes. Armored cables make both installation and fiber protection fast and easy during concrete pouring and solidification.
The sensor can be used alone or in series as a part of an FBG array. Double ended design and low bending loss support multiplexing of many sensors on one single fiber even if kilometers apart. Installation of such arrays will be more economical and maintainable for large measurement networks.
The WASAN-OFS-T01 sensor is ideal for absolute temperature measurement after standard calibration, and it can also be used as reference for temperature compensation of other sensor measurands, e. g. WASAN-OFS-D01. For the second case, the installation of the temperature sensor should make it possible to locate close to the target sensor for precise compensation of the measurand of interest.
Rugged Temperature Sensor (WASAN-OFS-T01)
Specifications | OFS-T01 |
Performance Properties | |
Sensitivity | 11.6 pm/°C |
Resolution | 0.02 °C (Related to demodulator resolution) |
Measurement Range | -40 ~ 100 °C |
Accuracy | Generally ±1°C (Related to demodulator accuracy) |
Physical Properties | |
Dimensions | 86±2 × Φ9.5 mm |
Shell Material | Stainless steel, aluminum alloy |
Fiber Type | Single mode fiber |
Cable Type | Φ4 / Φ5 mm armored optical cable |
Connectorization | FC/APC or fusing |
Cable Bend Radius | 5 cm |
Fiber core and coating diameter | Concrete buried or surface mounted |
Optical Properties | |
Peak Reflectivity (Rmax) | > 90 % |
FWHM (-3 dB point) | 0.25 nm |
Notes:
1. The typical initial wavelength of the FBG sensor is from 1528.00nm to 1605.00nm.
2. To achieve measurement accuracy as presented in this datasheet, the sensor should be used with the high-speed interrogator WASAN-OSI-16.
3. For special coating FBG please contact wasan@wasan.mo
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