基于塑料光纤的液位计

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基于塑料光纤的液位计(中文4300字,英文3100字)
摘要    本文介绍了一种低成本塑料光纤液位传感器的研制与试验。在高度易燃或其他危险环境中,如油管或油箱。该传感器包括一个垂直的刻度槽,当液体上升时,刻痕凹槽将连续地充满,从而增加了透射光功率。每个测量点获得透射光功率强度的2.60%的变化。此外,传感器的灵敏度和分辨率可以根据应用来定制。
1、引言
    在大型工业容器中,准确的液位测量是一项艰巨的任务,特别是对于高度敏感的环境,由于电火花的危险,电子传感器的使用可能是有问题的,甚至被法律所禁止。

外文文献及翻译
Liquid level gauge based in plastic optical fiber
1.Introduction
The accurate liquid level measurement in large indus- trial containers is a difficult task, especially for highly flam- mable environments, where the use of electronic sensors can be problematical, or even banned by law, due to the risk of electric sparkle.
Nowadays, the petroleum and other petrochemical industries have specific and tight requirements related with the production quantification. Such as the require- ment to quantify the production volume, by inferring the liquid level in the container (typically with some meters height). This requirement is not only an individual compa- ny requirement, to control the company production effi- ciency and gains, but also a legal imposition to estimate fiscal taxes [1]. Usually, the liquid level in the container is measured by traditional technologies, such as differen-tial pressure level meters, radar, magnetostrictive, or mag- netic float technologies [2,3]. However, some limitation may apply, since such methods are electronic and the sens- ing system is often exposed to combustible liquids or accu- mulated flammable vaporous environments.