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Fiber Optic Temperature Sensor/

Fluorescent Fiber Optic Temperature Sensor Probes

Temperature range:-40ºC~+240ºC(Customizable for higher temperature range)




Temperature measurement accuracy: ±1℃  (Can be customized for higher accuracy)


Number of channels:1-64(Number of channels can be customized)


Lengths:3M(Customizable length)


Fiber Type:Quartz fiber optic


Communication Method:RS485/Modbus-RTU


Power Dissipation:≤6W


Working Voltage :AC/DC220V


High voltage resistance:100KV

  • Product Details

Product Features

1、Fiber optic probe without any metal substances
2、Immune to electromagnetic and microwave interference
3、Withstand high voltage
4、’No calibration required
5、Measures hot spot temperatures with direct contact

Fiber optic
Fluorescent fiber optic temperature probe has good electrical insulation, anti-electromagnetic interference, chemical corrosion resistance, no pollution and many other traditional temperature sensors can not be compared with the advantages.
Fluorescent fiber optic temperature sensor probe will monitor the part of the temperature information is converted into light signals and transmitted to the fiber optic temperature transmitter, fiber optic sensor probe can be installed directly on the measured point, accurate temperature measurement, rapid response: its pigtail selection of soft, strong, specially designed optical fiber, with anti-electromagnetic interference, bending resistance, impact resistance and high strength; fiber optic sheath using PTFE, high temperature, aging resistance, corrosion-resistant, with high temperature resistance, aging resistance, corrosion resistance, high insulation, non-adhesion and other characteristics, can be adapted to high pressure, high temperature, strong electromagnetic and other harsh environments. Not only in the electric power industry, such as: high-voltage electrical equipment instrumentation temperature measurement, generator diagnostic system and transformer winding temperature measurement, high-voltage circuit breaker contact temperature measurement, cable joint temperature measurement, etc., widely used, but also in biology, medicine and other areas that require high-precision temperature measurement should also be suitable.

Fiber optic temperature sensor

Introduction of fluorescent fiber optic sensing probe


Fiber optic probe consists of three parts: ST connector, fiber optic cable, and end temperature sensing end; ST connector is the connection part with the photoelectric module; fiber optic cable is the light transmission part, internal quartz fiber, quartz fiber external coating and cladding, the most external Teflon protective sleeve; end temperature sensing end contains temperature-sensitive rare earth materials, used to generate optical signals containing temperature information; fiber optic is resistant to high temperature of 200 ℃ as a whole, with the diameter of 3mm; long-term bending radius is 13.2cm; short-term bending radius is 4.4cm. Long-term bending radius is 13.2cm, short-term bending radius is 4.4cm, and the fiber optic lead wire is 0.4m from the ground, it can withstand the industrial frequency voltage of 100KV for 5min.

The scope of application includes but is not limited to

Measurement of hotspots in high-voltage power switchgear, including copper busbars, moving contacts, static contacts, incoming and outgoing lines, etc;
Temperature monitoring of GIS cabinets, medium voltage cabinets, and low-voltage cabinet drawer cabinets;
Cable joints for ring main cabinets and temperature monitoring for box type substations;
Hot spot monitoring of dry-type transformer coils and oil immersed transformer windings;
Measurement of stator pressure index and collector ring temperature for water turbines/thermal/wind turbines;
Temperature measurement of enclosed busbars and cables;
Temperature monitoring in oil;
IGBT or chip surface temperature measurement;
Temperature measurement of fan blades; Temperature measurement at the connector connection point;
Medical hyperthermia human contact temperature measurement;
Nuclear magnetic resonance, ERFI, EMI, NMR, RF, microwave;
Etching machines, deposition equipment, small gaps, chemical liquids, vacuum environments;
Ring network cabinet head, hot spot temperature online monitoring;
Temperature monitoring for other harsh special environments.

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Application scenarios

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