FAQs

Sensuron’s distributed sensing technology uses 200-micron diameter glass fibers that have been continuously inscribed with Fiber Bragg Gratings (FBG). FBGs are the unique optical sensing element that turns ordinary telecom grade optical fiber into a powerful and robust sensing tool. These sensors act as embedded mirrors inside the fiber that reflect a specific wavelength. When an FBG fiber is bonded to a material and interrogated with light, the FBGs will reflect different wavelengths as the fiber is strained. This enables real-time monitoring of applications for precise measurement and unparalleled performance.

• • Our technology makes the task of measuring multiple sensing points over large intricate surfaces easier by combining thousands of sensors on a single fiber. Beyond aerospace, medical, automotive, civil, and energy applications, Sensuron’s distributed strain and temperature sensing technology has the ability to:

Increase public safety: Sensuron’s technology monitors the structural health of aircrafts, buildings, nuclear equipment, dams, automobiles, trains, etc.

Save resources: Sensuron’s compact distributed sensing solutions lead to improved efficiency of wind turbines

Detect structural instabilities: Sensuron’s RTS125+ system monitors components and structures within tunnels, chemicals, or nuclear power plants

Enhance sensitivities: Sensuron’s technology improves the precision of medical instruments and industrial tools

Improve accuracy: Sensuron’s distributed sensing systems precisely measure liquid levels in vats of chemicals, cryogenic liquids, fuel, water, oil, etc.

• • • • There are many differences between our platforms and other FOS technologies; however, our technology is industry leading when considering the combination of spatial resolution, refresh rate, and sensing length. For more details, please visit our page on

      fiber sensing basics.

    Sensuron’s distributed sensing technology combines the functions of a number of technologies, offering one solution that helps engineers solve problems across the aerospace, energy, automotive, civil, and medical industries. By improving the effectiveness of operations, our solution enables engineers to enhance their problem-solving capabilities.

    By analyzing changes in real-time, Sensuron’s technology increases the reliability of measurement and improves the safety of applications in demanding environments. This enables engineers to focus their energy on innovating beyond the problems of today and focus on the future. To see how Sensuron can enhance your applications, visit our Applications page.

While Sensuron’s distributed sensing solutions are lightweight, embeddable and can be used in applications as delicate as minimally invasive surgery, they are among the most robust technologies on the market. Immune to EMI and chemically inert, Sensuron’s systems can operate effectively in hazardous and difficult physical environments. Impervious to temperatures ranging from -200 to 200°C, Sensuron’s technology will function effectively when legacy technologies would fail.

• Summit:
  330 x 305 x 115 mm (13 x 12 x 4.53 in), 6.6 Kg (14.6 lbs)
  • RTS125+:
    330 x 181 x 162 mm (13 x 7.13 x 6.38 in), 6.2 Kg (13.7 lbs)

• • • Summit: 16 VDC, 65 W (laptop 110V AC adapter suffices, provided along with the instrument)
      • RTS125+: 16 VDC, 80 W (laptop 110V AC adapter suffices, provided along with the instrument)

All Sensuron devices contain an onboard Windows 7 PC.Users may interface with the device by connecting USB peripherals and using it as a standalone PC, or they may connect to and control it with an external Windows PC using an Ethernet connection. Software is included for control, data acquisition, data recording, and data visualization.Data visualization and real time post processing in third party software is possible using TCP/IP – contact Sensuron for more details.

The acquisition rate on the Summit ranges from 10 Hz to 60 Hz, and 10 Hz to 100 Hz on the RTS125+.The acquisition rate is an inverse function of the dynamic range.The larger the strain or change in temperature the user wants to sense, the slower the acquisition rate will be.The maximum rates for each device yield a range of approximately ±800 με, or a temperature range of -60 to +100 °C. The slowest acquisition rates for each device yield a range of approximately ±17,500 με, or a temperature range of -273 to 1600 °C.Standard sensor fiber will not operate above 200 °C. Please contact Sensuron for high temperature options.

Yes, temperature compensated strain measurements are possible.This generally requires measuring the temperature or the thermal apparent strain directly.This is accomplished using either an unbonded portion of fiber, a second fiber, or a compensation tab.Please contact Sensuron for more details.

The user has the option to add an arbitrary amount of standoff length between the data acquisition device and the sensor fiber up to a maximum length.The maximum lengths are 30 m and 50 m for the RTS125+ and Summit, respectively.Each channel may have a different standoff length.Lengths up to 2 km may be possible, contact Sensuron for more details.

Fiber is installed using the same methods as traditional foil strain gauges.One must clean, abrade, and reclean the surface to which the fiber will be bonded along the entire intended path of the sensor.Then, the sensor is held in place along the path by “spot” gluing it in place.Finally, a thin layer of adhesive is applied continuously along the entire fiber length. The same adhesives used for installing foil strain gauges may be used for fiber sensors.

Sensuron’s distributed sensing systems utilize similar installation tools used with strain gages, including: abrasive (sandpaper), glue for tacking the fiber down along the route and optionally for the whole installation, epoxy as the alternative for the primary installation adhesive (cyanoacrylate glue for the tacking down), mixing tools, gloves, eye protection, fume protection, alcohol or other cleaning solvents, preferred installation tool for “smearing” the epoxy (a brush, a q-tip, your finger and a sheet of lint-free wipe), pencil, and measuring tools for marking the route.

Sensuron’s sensing fiber comes in three configurations:

Sensuron fiber is coated with a hybrid polymer material called ORMOCER. There are two types of ORMOCER coating available for use with Sensuron devices, which are optimized for certain application types. ORMOCER coated fiber is used for sensing strain, and ORMOCER-T fiber is used for sensing temperature.

Sensuron’s compact FOS systems have a diverse array of applications. The technology can be used to test, monitor and control:

For installation, recommended materials include lint-free wipes, non-residue-leaving tapes (such as flash breaker tape), rulers, protractors, and any other helpful route-marking tools.

Yes, the Sensuron technology allows users to have multiple connection points along a single fiber line.This is accomplished by using multiple FC/APC patch cords (lead fibers) connected in series using FC/APC couplers, thus enabling modular installations and connections across bulkheads.

All eight channels are monitored simultaneously, in real time.

Yes, Sensuron’s fibers can be protected by a variety of sealants and tapes.

To learn more contact a Sensuron services engineer.

Sensuron’s distributed sensing systems adhere using the same materials as traditional foil strain gage applications – typically a cyanoacrylate-based glue or a two-part epoxy for more critical and long-term installations. The substrate material is prepped by thoroughly cleaning the surface, abrading it, re-cleaning, tacking the fiber down to hold it along the desired route, and then applying the glue or epoxy. It is not unusual to install 2048 sensors in a single day.

Sensuron fiber may be bent to a radius of 1 inch during operation. Fibers will survive but not operate when subjected to bends as low as 1/8 inch.

Sensuron technology can function independently or as an integrated component.

Sensuron provides all the necessary training on handling, installing, and maintaining our systems and fibers so that our customers will be successful. Most people find applying fiber comparable to the installation of strain gauges, however one fiber can act as thousands of strain gauges so the technology is much easier to install.

• The unit has been ruggedized for general operation outside of a laboratory environment (full temperature range and vibration/shock profile subject to test).Sensuron invites customers to contact us so that we may investigate options for meeting specific environmental requirements.