TY - JOUR
T1 - Pitot-Static-Tube-Based Waterflow Sensor for Marine Biologging via Inside Sealing of an Incompressible Liquid
AU - Kishimoto, Takuto
AU - Saito, Ryosuke
AU - Tanaka, Hiroto
AU - Takahashi, Hideotoshi
N1 - Funding Information:
Manuscript received June 3, 2021; revised June 30, 2021; accepted June 30, 2021. Date of publication July 5, 2021; date of current version September 15, 2021. This work was supported by the JSPS KAKENHI under Grant 20H02102. The associate editor coordinating the review of this article and approving it for publication was Dr. Eui-Hyeok Yang. (Corresponding author: Hideotoshi Takahashi.) Takuto Kishimoto and Hideotoshi Takahashi are with the Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, Yokohama, Kanagawa 223-8522, Japan (e-mail: htakahashi@mech.keio.ac.jp).
Publisher Copyright:
© 2001-2012 IEEE.
PY - 2021/9/15
Y1 - 2021/9/15
N2 - 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.
AB - 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.
KW - Flow sensor
KW - biologging
KW - incompressible liquid
KW - pitot-static tube
KW - waterflow velocity
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U2 - 10.1109/JSEN.2021.3094565
DO - 10.1109/JSEN.2021.3094565
M3 - Article
AN - SCOPUS:85112592691
SN - 1530-437X
VL - 21
SP - 19806
EP - 19814
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 18
ER -
