The FSI MX optical sensing instruments are economic commercial-grade interrogators, featuring 2-16 monitoring channels. Enclosed in a field-deployable enclosure, the instrument can be operated in full-spectrum and in sensor peak detection modes.

The MX series are optimized for both static and dynamic measurements of up to 30 Fiber Bragg Gratings (FBG) based sensors per channels.
Our family of rugged MX interrogators is used extensively in civil engineering, marine, railways, roads, energy, geotechnical, industrial, security, medical, and many other commercial applications. This economy model is specifically useful for security, civil engineering, energy, process control, material qualification labs, and R&D programs. The industrial-grade design scales well for volume production.

Wavelengths Range 40nm 1528nm to 1568nm
Number of channels 2, 4, 8, 16, 24, 32 Synchronous Scan, No switches
Number of Sensors per Channel (see Note 1) 1 to 30 4ch * 30 = 120 sensors (assuming    1.2nm spacing of FBG sensors)
Wavelength Accuracy +/- 10pm With Internal FP Etalon and TEC control to guarantee long-term performance
Wavelength Repetability +/- 2pm Defined over long-term
Laser Line-Width 20MHz Self-heterodyne measured line-width at static wavelength
Laser Output Power per Channel (see Note 2) < 4dBm Performance is maintained even with 20dB optical power loss
Gain Stages 6 Controlled automatically. Can also be controlled manually and independently for each channel
Dynamic Range 25dB Applies for all available scan rates
Scan Frequency (FBG Peaks Processing) 1kHz Displays and provides FBG Sensors Peaks vs Wavelength (Also available at 100kHz and 2kHz)
Scan Frequency (Full Spectrum) 8Hz Full Spectrum display at 8Hz and Full Spectrum data recording at 8Hz, in parallel
Fiber Lead-in and Sensor Range (Distance) 10km Lead-in lengths up to 5km and FBG1 to FBGn in each array to be within 5 km from each other
Input Voltage and Power Consumption 5V and 15W Auto-detect 100V to 240V AC with 5V supply block included
Operating Temperature -15 to +55¼ Designed for commercial field use (Also avail-able with   -40 to + 85¼ operating range)
Dimensions (WxDxH) 180x126x40mm Applies to 1,2, and 4 channels units only (Dimensions for the 8,16,24, and 32ch units are larger)
Weight 0.64kg Applies to 1,2, and 4 channels units only (Weights for the 8,16,24, and 32ch units are larger)
Color Black Other Colors and graphics available for OEM purchases of 10 or more units per PO
Optical Connection to Sensors LC/APC with internal Shutters The internal Shutters are independent for each channel and open and close automatically when LC/APC connectors are inserted or removed from the interrogator, for protection
Compliance to standards YES REACH and ROHS Compliant
Communications and Interface YES 100Mbps Ethernet RJ45 for Data Transfer and Settings, and UART Port for IP Address Settings
Supplied Software YES User friendly PICOSENSE Software in .NET environment, API support

Key Features

  • Repeatability, accuracy, and dynamic range
  • Top reliability
  • Adaptive to more types of sensors
  • Systems and network-ready
  • Lowest cost and high quality



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