声敏光纤

声敏光纤

  • 产品描述

    声敏光纤是北京玻璃研究院开发的一款具有较高声灵敏度的光纤,在声灵敏度要求较高的场所具有较高的应用前景。该产品具有声灵敏度高、抗弯曲性能好的特点。主要应用于管道泄漏检测,提高设备传感灵敏度、精度和可靠性,满足工程化应用条件,如石油输送管道、市政管网的自来水管道、热力管道、舰船上的给排水管道。

    Acoustic sensitivity fiber is a kind of fiber with high acoustic sensitivity developed by BGRI. It has great application prospect in where it need high acoustic sensitivity. It has high acoustic sensitivity and good bending resistance performance. It is mainly used in pipeline leak detection .It improves the equipment sensitivity, precision and reliability and satisfies the engineering application ,for example ,the oil pipeline, the tap water pipeline, the Heat pipe and Water supply and drainage pipe of ships and warships.

    声敏光纤

    序号

    指标名称

    要求

    1

    工作波长(nm

    Operating wavelength

    1550

    几何特性

    2

    包层直径(μm

    Cladding diameter

    125.0±5.0

    3

    光纤直径(mm

    Fiber diameter

    1.0±0.2

    光学特性

    4

    截止波长(nm

    Cut-off wavelength

    1450

    5

    模场直径(μm

    Model Field Diameter

    8.0±1.0

    6

    衰减常数(dB/km

    Loss

    2

    7

    数值孔径

    N. A.

    0.14~0.18

    环境与机械性能

    8

    断裂伸长率(%

    Elongation at break

    1

    9

    光纤声灵敏度((dyn/cm2-1

    Acoustic sensitivity

    4×10-12

    10

    工作温度(℃)

    Operating temperature

    -40~75