Compact Pitot-static-tube-based waterflow sensor for biologging of marine animals

Takuto Kishimoto, Ryosuke Saito, Hiroto Tanaka, Hidetoshi Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This study presents a waterflow sensor for biologging of marine animals. Although a biologging method of recording animal behavior with sensors is attracted attention for evaluating the swimming performance of marine animals, it is not easy to measure waterflow velocity for a long time. This is due to strict requirements such as compact size and high pressure resistance. In addition, marine animals move above the sea surface to breathe. Here, we proposed a compact Pitot-static-tube-based waterflow sensor for biologging of marine animals. Incompressible liquid is sealed inside the sensor housings to realize high-pressure resistance. A thin film is glued inlets of the sensor to prevent air bubbles invention. A membrane-type differential pressure sensor chip is built inside the sensor to measure differential pressure between each inlet. By downsizing the sensor shape and reducing sealed incompressible liquid, the sensor is compacter than a previous sensor. The developed sensor responded to waterflow velocity from 0.2 to1.6 m/s with sufficiently high sensitivity.

Original languageEnglish
Title of host publication2021 IEEE Sensors, SENSORS 2021 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728195018
Publication statusPublished - 2021
Event20th IEEE Sensors, SENSORS 2021 - Virtual, Online, Australia
Duration: 2021 Oct 312021 Nov 4

Publication series

NameProceedings of IEEE Sensors
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229


Conference20th IEEE Sensors, SENSORS 2021
CityVirtual, Online


  • Pitot-static tube
  • biologging
  • flow sensor
  • incompressible liquid
  • waterflow velocity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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