基于图像光纤的高精度、大动态范围微型悬浮固体传感器。

Image Fiber-Based Miniature Suspended Solid Sensor with High Accuracy and a Large Dynamic Range.

作者信息

Qi Pengfei, Lin Lie, Huang Rui, Zhao Sicong, Tian Haolin, Li Shuai, Zhang Qinghe, Liu Weiwei

机构信息

Institute of Modern Optics, Nankai University, Key Laboratory of Optical Information Science and Technology, Ministry of Education, Tianjin, 300350, China.

State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300072, China.

出版信息

Sci Rep. 2017 Dec 1;7(1):16798. doi: 10.1038/s41598-017-17003-y.

DOI:10.1038/s41598-017-17003-y

PMID:29196640

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5711881/

Abstract

An image fiber-based miniature suspended solid sensor has been demonstrated. The diameter of the sensor is only a few millimeters. A superhydrophobic material is coated on the end of the image fiber to avoid the adsorption of suspended solids and bubbles. Multiple parameters, including mass concentration, morphology and particle sizes of suspended solids, can be visually measured in real time. Dynamic ranges of 0 ~100 kg/m, full range accuracies of ±2‰ and a response time of 0.05 s were experimentally realized for the mass concentration measurements. Determinations of particle sizes of the suspended solids are also presented by means of digital image processing. This new technique will significantly advance ultralow-intrusion measurements in studies on the dynamics of suspended solids.

摘要

一种基于图像光纤的微型悬浮固体传感器已得到验证。该传感器的直径仅几毫米。在图像光纤末端涂覆了超疏水材料，以避免悬浮固体和气泡的吸附。可以实时直观地测量包括悬浮固体的质量浓度、形态和粒径在内的多个参数。对于质量浓度测量，实验实现了0~100 kg/m的动态范围、±2‰的全量程精度和0.05 s的响应时间。还通过数字图像处理给出了悬浮固体粒径的测定结果。这项新技术将显著推动悬浮固体动力学研究中的超低侵入测量。