A novel method and an equipment for generating the standard moisture in gas flowing through a pipe

Yusuke Tsukahara, Osamu Hirayama, Nobuo Takeda, Toru Oizumi, Hideyuki Fukushi, Nagisa Sato, Toshihiro Tsuji, Kazushi Yamanaka, Shingo Akao

Research output: Contribution to journalArticle

Abstract

When inert gas containing water molecules flows into a metal pipe, the water molecules cannot exit instantaneously from the outlet of the pipe but are captured at adsorption sites on the inner surface of the pipe until most of the sites are occupied. A theoretical model and a subsequent experiment in this article show that the delay time depends on the amount of moisture level; the higher the moisture-level, the shorter the delay time. Based on the result, we propose a new method and its implementation to the validation of a standard moisture generation to be used in the field measurement such as in factories and pipe lines.

Original languageEnglish
Article number3438
JournalSensors (Switzerland)
Volume18
Issue number10
DOIs
Publication statusPublished - 2018 Oct 13
Externally publishedYes

Keywords

  • Ball saw sensor
  • Permeation tube
  • Surface acoustic wave
  • Trace moisture

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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  • Cite this

    Tsukahara, Y., Hirayama, O., Takeda, N., Oizumi, T., Fukushi, H., Sato, N., Tsuji, T., Yamanaka, K., & Akao, S. (2018). A novel method and an equipment for generating the standard moisture in gas flowing through a pipe. Sensors (Switzerland), 18(10), [3438]. https://doi.org/10.3390/s18103438