Pitot-Static-Tube-Based Waterflow Sensor for Marine Biologging via Inside Sealing of an Incompressible Liquid
Pitot-Static-Tube-Based Waterflow Sensor for Marine Biologging via Inside Sealing of an Incompressible Liquid
复制标题
基于皮托静压管的水流传感器，通过不可压缩液体的内部密封进行海洋生物记录
DOI：
10.1109/jsen.2021.3094565
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发表时间：
2021
影响因子：
4.3
通讯作者：
Takahashi Hideotoshi
中科院分区：
文献类型：
--
作者：
Kishimoto Takuto;Saito Ryosuke;Tanaka Hiroto;Takahashi Hideotoshi
本文介绍了一种用于海洋生物测量的水流量传感器。虽然生物记录方法在评估海洋动物的游泳性能方面引起了人们的注意，但很难直接测量游泳动物的长期水流速度。这是因为传感器需要严格的规格，例如足够的灵敏度和精度，小尺寸和轻重量，能够在水和空气之间移动以进行呼吸，以及足够的水压阻力。在这里，我们提出了一种基于封闭入口皮托静压管结构的水流量传感器，满足这些要求。管子里充满了不可压缩的液体。硅树脂膜连接到入口以防止气泡渗透。差压传感器芯片作为皮托静压管的传感元件，内置于管壳中，用于测量入口之间的压差。由于流体的不可压缩性，实现了所需的耐压性。开发的传感器响应水流从0.2米/秒至1.6米/秒，具有足够高的灵敏度。因此，所提出的传感器可用于海洋动物的生物记录。
This article presents a waterflow sensor for marine biologging. Although biologging methods have attracted attention in evaluating marine animals’ swimming performance, it has been difficult to directly measure the long-term waterflow velocity against a swimming animal. This is because the sensors require strict specifications, such as sufficient sensitivity and accuracy, small size and light weight, ability to move between water and air for breathing, and sufficient water pressure resistance. Here, we propose a waterflow sensor based on a closed-inlet Pitot-static tube structure that satisfies these requirements. The tube is filled with incompressible liquid. Silicone membranes are attached to the inlets to prevent air bubble infiltration. A differential pressure sensor chip, which works as the Pitot-static tube’s sensing element, is built into the tube housing to measure the pressure difference between the inlets. Due to the fluid incompressibility, the required pressure resistance is realized. The developed sensor responded to waterflow from 0.2 m/s to 1.6 m/s with sufficiently high sensitivity. Therefore, the proposed sensor can be utilized for the biologging of marine animals.