Les fibres optiques multimodes de la série VHM3000 de Verrillon® Graded-Index (GI) conviennent aux applications à haute température jusqu'à 300°C dans des environnements contenant de l'hydrogène. La grande largeur de bande de ces fibres permet aux systèmes de détection distribuée de la température (DTS) d'atteindre une résolution spatiale extrêmement courte dans des déploiements longs et profonds de plusieurs kilomètres.
adfa2a922fb9478cb55f3a318744bea3
1 Specialty Optical Fiber © 2014, AFL, all rights reserved. PP-6-00003, Revision 2, 4.27.2020 Specifications are subject to change without notice. AFLglobal.com | 800.235.3423 Features • 50/125 graded-index multimode fiber for harsh environments such as oil wells • Excellent resistance to hydrogen darkening at high temperatures and partial pressures of hydrogen • High bandwidth allows sensor systems to achieve extremely short spatial resolutions • Suitable for downhole temperature monitoring applications • Excellent for DTS systems operating in the 1064nm spectral region • Available in all Verrillon’s harsh environments coatings including carbon coating VHM3000 Series Harsh Environment Fibers Verrillon VHM3000 Series is a family of graded-index multimode fibers exhibiting exceptional resistance to hydrogen at high temperatures in hydrogen-rich applications. The true hydrogen resistance is a result of modified glass chemistry. Additionally, the graded-index design provides very high bandwidth for optimum DTS measurement in downhole applications. The VHM3000 Series is available with a variety of Verrillon coatings including Polyimide, Silicone/PFA and Mid-Temp acrylates. Typically, these fibers are used in down-hole monitoring, distributed sensing and imaging applications. Specifications PART NO. MMF-50-6-P-125-6 MMF-50-6-CP-125-6 Description 50/125/155 μm Polyimide coated, Graded Index, Multimode Fiber 50/125/155 μm Carbon/Polyimide coated, Graded Index, Multimode Fiber PARAMETER VALUE Material Hermetic Coating — Carbon Coating Polyimide Polyimide Geometry Core Diameter (μm) 50 ± 2.5 50 ± 2.5 Clad Diameter (μm) 125 ± 2 125 ± 2 Core Non-Circularity (%) < 5 < 5 Clad Non-Circularity (%) < 1 < 1 Core/Clad Offset (μm) < 1.5 < 1.5 Coating Diameter (μm) 155 ± 5 155 ± 5 Polyimide Coating Concentricity 1 (%) > 80 > 80 Optical NA (nominal) 0.20 0.20 Attenuation 2 @ 850 nm (dB/km) < 3.0 < 3.0 Attenuation 2 @ 1300 nm (dB/km) < 1.2 < 1.2 Bandwidth @ 850 nm (MHz-km) > 300 > 300 Bandwidth @ 1300 nm (MHz-km) > 300 > 300 Mechanical Proof Test (kpsi) > 100 > 100 Operating Temperature (°C) -65 to +300 -65 to +300 1 Measured as (Min. Wall/Max. Wall) x 100 2 Measured on loose coil
© 2014, AFL, all rights reserved. PP-6-00003, Revision 2, 4.27.2020 Specifications are subject to change without notice. AFLglobal.com | 800.235.3423 2 Specialty Optical Fiber VHM3000 Series Harsh Environment Fibers Specifications PART NO. MMF-50-6-CSPFA-125-3 MMF-50-6-CSPFA-125-5 Description 50/125/700 μm Carbon/Silicone/PFA coated, Graded Index Multimode Fiber 50/125/400 μm Carbon/Silicone/PFA coated, Graded Index Multimode Fiber PARAMETER VALUE Material Hermetic Coating Carbon Carbon Primary Coating Silicone Silicone Secondary Coating PFA PFA Geometry Core Diameter (μm) 50 ± 2.5 50 ± 2.5 Clad Diameter (μm) 125 ± 2 125 ± 2 Core Non-Circularity (%) ≤ 5 ≤ 5 Clad Non-Circularity (%) ≤ 1 ≤ 1 Core/Clad Offset (μm) ≤ 1.5 ≤ 1.5 Combined Coating Diameter (μm) 700 ± 50 400 ± 50 Optical NA (nominal) 0.20 0.20 Attenuation 1 @ 850 nm (dB/km) < 3.0 < 3.0 Attenuation 1 @ 1300 nm (dB/km) < 1.2 < 1.2 Bandwidth @ 850 nm (MHz-km) > 300 > 300 Bandwidth @ 1300 nm (MHz-km) > 300 > 300 Mechanical Proof Test (kpsi) > 100 > 100 Operating Temperature (°C) -40 to +200 -40 to +200 1 Measured on loose coil Specifications PART NO. MMF-50-6-CSMTA-125-6 Description 50/125/245 μm Carbon/Silicone/MTA coated, Graded Index, Multimode Fiber PARAMETER VALUE Material Hermetic Coating Carbon Primary Coating Silicone Secondary Coating Mid-Temp Acrylate Geometry Core Diameter (μm) 50 ± 2.5 Clad Diameter (μm) 125 ± 2 Core Non-Circularity (%) ≤ 5 Clad Non-Circularity (%) ≤ 1 Core/Clad Offset (μm) ≤ 1.5 Combined Coating Diameter (μm) 245 ± 20 Optical NA (nominal) 0.20 Attenuation @ 850 nm (dB/km) < 3.0 Attenuation @ 1300 nm (dB/km) < 1.2 Bandwidth @ 850 nm (MHz-km) > 300 Bandwidth @ 1300 nm (MHz-km) > 300 Mechanical Proof Test (kpsi) > 100 Operating Temperature (°C) -40 to +150
Caractéristiques :
- Fibre multimode à gradient d'indice 50/125 pour les environnements difficiles tels que les puits de pétrole.
- Excellente résistance au noircissement par l'hydrogène à des températures et des pressions partielles d'hydrogène élevées
- La bande passante élevée permet aux systèmes de capteurs d'atteindre des résolutions spatiales extrêmement courtes
- Convient aux applications de surveillance de la température en fond de puits
- Excellent pour les systèmes DTS fonctionnant dans la région spectrale de 1064 nm.
- Disponible dans tous les revêtements pour environnements difficiles de Verrillon’
, y compris le revêtement en carbone.
Fibres pour environnements difficiles de la srie VHM50 | AFL Global Canada,Fibres pour environnements difficiles de la srie VHM50 | AFL Global Canada,Fibre optique spéciale monomode série VHT500 | AFL Global Canada,Fibres de la srie VHM7000 | AFL Global Canada,Fibres pour environnements difficiles de la srie VHM40 | AFL Global Canada,Fibres pour environnements difficiles de la srie VHM20 | AFL Global Canada,Fibres pour environnements difficiles de la srie VHS70 | AFL Global Canada,Fibres pour environnements difficiles de la srie VHS50 | AFL Global Canada,Fibres pour environnements difficiles de la srie VHS10 | AFL Global Canada,Fibre optique spéciale multimode série VHT5000 | AFL Global Canada,Fibres de dtection mdicale | AFL Global Canada,Fibres d'mission de laser mdical proche infrarouge NIR | AFL Global Canada,UVVisible UVVis Laser mdical Fibres de livraison | AFL Global Canada,Fibres VPZ600 à polarisation unique | AFL Global Canada
1715