BRAGG Series Fiber Optic 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