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BRAGG Series Fiber Optic Temperature Probes

BRAGG FBG-based fiber optic temperature probes

BRAGG series FBG-based Temperature Probes

Micronor Sensors now offers a range of off-the-shelf single and multipoint fiber optic temperature probes  based on Fiber Bragg Grating technology.  There are two classes of sensors:

  • Standard SM800P-5.6 (P) fiber-based probes with temperature range of -250°C to +300°C
  • Ultra High Temperature (UHT) fiber-based probes with range of -250°C to +600°C
  • Ultra High Temperature (UHT) fiber-based probes with deeper written FBGs with measuring range of -250°C to +800°C, Maximum 10 FBG points per probe.
  • Typical measurement accuracy is ±1-3°C for the range of -50°C to +300°. Referencing techniques and temperature model selection can be used for higher accuracy.

The last FBG is located within 10mm of the tip of the capillary.  For turn-key BRAGG Temperature Probes, the Capillary options are:

  • Silica, 0.44m OD, fused closed end
  • Stainless Steel, 1mm OD, welded closed end
  • Alumina Ceramic, 3.3m OD, closed end

IMPORTANT NOTE: If you require high precision (±0.2°K to ±1°K) in the range of -200°C to +300°C and/or traditional instrumentation, then go to our FOTEMP TS Series Temperature Probes and Signal Conditioners

These probes require the connection to either a 1-channel FBGX100 or 4-channel FBGX400 interrogator. General purpose, multi-channel FBG-Interrogator software is provided for free with the interrogators. Custom probes can incorporate up to 30 FBG measuring points (min spacing is 2mm) in a single fiber probe. These interrogators offer sampling rate of 1-100 Hz with data logging to an Excel compatible file. FBGX100 interfaces are microUSB  and UART; FBGX400 features USB-C and UART.

Typical fiber optic temperature monitoring applications include:

  • Industrial process monitoring
  • Power transformers
  • Medical and catheter instrumentation
  • Food process monitoring
  • Harsh environment conditions

BRAGG Temperature Probes: FBG Principle of Operation

How Fiber Bragg Gratings Work

Download BRAGG Temperature Probe™ Quick Guide:

10/11/2024:  Standard product list is Under Construction. Contact Micronor Sensors sales to discuss your needs.

FOTEMP TS sensor quick guide
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