FieldSens Multi-Channel Signal Conditioner

Multi-channel multi-purpose signal conditioner for field applications.

The FieldSens is a multi-channel, multi-purpose signal conditioner to be used with any of Opsens Solutions’ interferometric fiber optic sensors, i.e. the WLPI fiber optic sensors, for temperature, pressure, strain, and displacement measurements.

At the heart of the FieldSens is the Opsens Solutions’ White Light Polarization Interferometry (WLPI) technology (Patent #7,259,862) which provides a means for making accurate and absolute measurements of the path length difference of any type of interferometric fiber optic sensors.

The FieldSens is offered in a tabletop version or a wall mounted version and comes standard with LCD screen display, RS-232 and RS-485 serial interface outputs. It provides sequential readings up to 12 measurement channels with a ±0.01% full scale precision.


  • Up to 12 measurement channels
  • High linearity and precision
  • RS-232 and RS-485 serial output
  • Tabletop and wall mount versions
  • LCD screen display


  • Multi-point long-term monitoring
  • In-situ process monitoring
  • Civil engineering and geotechnical applications
  • High voltage environments
  • EMI, RFI and microwave environments
  • Nuclear and hazardous environments
Number of channels

4, 8 or 12


All Opsens Solutions’ WLPI fiber optic sensors

Full scale

30 000 nm (Path length difference)


±0.003 % of F.S. (No averaging)


±0.01 % of F.S. @ ±3.3 sigma limit (99.9 % confidence level)

Sampling rate

20 Hz standard (Rate given for a fixed channel)

Channel scanning rate

6.67 Hz maximum (Channel-to-channel scan period = 150 ms)

Output interface

RS-232 and RS-485 serial output (SCPI protocol)


LCD screen display standard can be ordered without display

Input power

9 to 24 VDC (AD/DC wall-transformer adapter included)


2.5 Watt typical

Storage temperature

– 40 °C to 70 °C

Operating temperature

0 °C to 45°C


95 % non condensing

Light source life span

40 000 hours MTBF

Opsens Solutions Inc. reserves the right to make any changes to the above specifications without prior notice.

Do you need help to find your signal conditioner ?