FBG - based temperature probe (model 313)
This page provides the main characteristics of the probe-type temperature sensors of the OSCT, OSMT and OSHT series for easy comparison.
Probe-type sensors are implemented in the form of a cylindrical tube with a standard installation connectors, which allows them to be used in industrial equipment as an alternative to electrical thermometers.
Design of probe-type sensors can be adapted to the Customer requirements while maintaining their functionality.
Advantages of the fiber temperature sensors:
- spectral multiplexing;
- possibility of remote measurements (no power supply requires at the measurement site);
- long-term stability of measurements;
- immunity to electromagnetic interference;
- fire safety;
- small dimensions and weight;
- wide temperature range of measurements;
- low error level within the entire measurement range.
FEATURES OF PROBE-TYPE SENSORS
- easy installation;
-
high temperature resistant light guides;
-
compatible with most FBG interrogators from various manufacturers.
APPLICATIONS
Local and quasi-distributed thermal monitoring of objects, structures and systems in various fields of science and technology:
- buildings, roads, bridges and other constructions;
- hydro, wind, nuclear power stations;
- cars, railway and sea transportation;
- airplanes and space systems;
- oil and gas industries, including pipeline monitoring.
DESIGN
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OSCT-313 | OSMT-313 | OSHT-313 |
TECHNICAL SPECIFICATIONS
Specification |
OSCT-313-200 |
OSMT-313-200 |
OSHT-313-200 |
---|---|---|---|
Thermal characteristics | |||
Operating temperature range, ºС | +150 | +300 | +500 |
Absolute accuracy, ºС | ± 0.5 | ± 1.5 | ± 1,5 |
Connector operation temperature range, ºС |
-40 ÷ +80 | ||
Temperature sensitivity, ppm/ºС | 6.5 ÷ 7.5 | 6.5 ÷ 8.0 | 6.5 ÷ 8.5 |
Sensor time constant, sec | 7 | ||
Optical characteristics | |||
Resonance wavelength, nm | 1510 ÷ 1590 | ||
Peak reflectivity, % | ≥ 60 | ||
FWHM, nm |
0.3 ÷ 0.4 | ||
Fiber type |
compatible with SMF-28 |
||
Connector type (on request) |
without connector, FC/APC, LC/APC, SC/APC |
||
Mechanical characteristics | |||
Probe diameter, mm |
Ø 4 | ||
Sensor connecting size |
М20x1.5 | ||
Probe length (on request), mm |
200* | ||
Attachment method |
threaded connection | ||
Sensor body material |
SS 316L |
*- at the request of the customer can be changed from 200 to 1000mm