首页> 外文会议>Photonics, Devices, and Systems III >Liquid-level sensor based in laser feedback interferometry for oil tanks applications
【24h】

Liquid-level sensor based in laser feedback interferometry for oil tanks applications

机译:基于激光反馈干涉法的液位传感器,用于油箱应用

获取原文
获取原文并翻译 | 示例

摘要

Measurement of liquid level in tanks is an important function in many industrial processes. Optical-fiber sensors have high sensitivity and its non-electrical nature and immunity to electromagnetic interference make them safe for applications in explosive environments and oil tanks. In this work we present a liquid-level sensor system based on laser feedback interferometry. Considering that the index of refraction of liquid hydrocarbons is in the range from 1.45 to 1.55, and the air reflectivity varies between 3.37% and 4.65%, we could demonstrate that it is possible to measure displacements of even 8.00 meters with a resolution of a half of the wavelength of the signal emitted. Thus, we can obtain a sensor with a high resolution in a broad range of measurements based in this technique. The effects of undesired internal reflections or backscattering due to the oil vapor could be also taken into account.
机译:罐中液位的测量是许多工业过程中的重要功能。光纤传感器具有很高的灵敏度,其非电特性和抗电磁干扰能力使其在爆炸性环境和油箱中安全使用。在这项工作中,我们提出了一种基于激光反馈干涉法的液位传感器系统。考虑到液态碳氢化合物的折射率在1.45至1.55的范围内,并且空气反射率在3.37%至4.65%之间变化,我们可以证明即使是8.00米的位移也可以用一半的分辨率进行测量发射信号的波长。因此,基于该技术,我们可以在宽范围的测量中获得高分辨率的传感器。也可以考虑由于油蒸气引起的不希望的内部反射或反向散射的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号