Perforated FIMT | NBG Fiber Optics



Perforated FIMT


An optical fiber these days can be built to measure different values from the environment such as concentration of hydrogen, immersed light, radioactivity, chemical sensing and much more even in the roughest conditions. As such a fiber is made of glass which is very fragile, it needs a surrounding protection with the advantage to bring the environment directly in contact with the measuring fiber. NBG came up with a special FIMT solution which brings all the requirements in such a product by adding holes through the metal surface. What sounds like a simple solution is demanding highest accuracy in manufacturing as well as good engineering in order to provide a product which is able to provide the best operational performance.

  • 32-Up to 114 fibers up to 8 fibers
  • 31-High Precision sensing ready
  • 33-Perforated Perforated


Product abbreviation PST
Outer diameter2.3 mm
Wall thickness0.200 mm
Approx. Cable weight11 kg per km
Hole to hole distance10 mm
Hole dimensions ~ 0.90 mm x 1.40 mm
Maximum fiber count 8 (250µm)
Steel material Anticorrosive Alloy

All values, product specifications and other given data are subject to change without notice to improve reliability, function, design or otherwise. Information contained in this data sheet are up-to-date as at the date of issue. As NBG cannot control or anticipate the conditions under which this product may be used, each user should review the information in specific context of the planned use. To the maximum extent permitted by law, NBG will not be responsible for damages of any nature resulting from the use or reliance upon the information contained in this data sheet.

Product overview created by Patrick Weissinger – 21.03.2019


Frank Hieden

Fiber Optics Solution Specialist.
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