Home >

news Help

Publication Information


Title
Japanese: 
English:Pitot-static-tube-based waterflow sensor for marine biologging via inside sealing of an incompressible liquid 
Author
Japanese: Takuto Kishimoto, 齋藤 遼輔, 田中 博人, Hidetoshi Takahashi.  
English: Takuto Kishimoto, Ryosuke Saito, Hiroto Tanaka, Hidetoshi Takahashi.  
Language English 
Journal/Book name
Japanese: 
English:IEEE Sensors Journal 
Volume, Number, Page        
Published date July 5, 2021 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://ieeexplore.ieee.org/abstract/document/9474432
 
DOI https://doi.org/10.1109/JSEN.2021.3094565
Abstract This paper 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.

©2007 Tokyo Institute of Technology All rights reserved.