Next Article in Journal
An Accurate and Efficient Time Delay Estimation Method of Ultra-High Frequency Signals for Partial Discharge Localization in Substations
Next Article in Special Issue
Online Moisture Measurement of Bio Fuel at a Paper Mill Employing a Microwave Resonator
Previous Article in Journal
A High Accuracy Time-Reversal Based WiFi Indoor Localization Approach with a Single Antenna
Previous Article in Special Issue
Consumer Grade Weather Stations for Wooden Structure Fire Risk Assessment
Open AccessArticle

A Novel Method and an Equipment for Generating the Standard Moisture in Gas Flowing through a Pipe

Ball Wave Inc., T-Biz 503, 6-6-40, Aza Aoba, Aramaki, Aoba, Sendai, Miyagi 980-8579, Japan
*
Author to whom correspondence should be addressed.
Sensors 2018, 18(10), 3438; https://doi.org/10.3390/s18103438
Received: 3 September 2018 / Revised: 7 October 2018 / Accepted: 8 October 2018 / Published: 13 October 2018
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. View Full-Text
Keywords: Trace moisture; ball SAW sensor; surface acoustic wave; permeation tube Trace moisture; ball SAW sensor; surface acoustic wave; permeation tube
Show Figures

Figure 1

MDPI and ACS Style

Tsukahara, Y.; Hirayama, O.; Takeda, N.; Oizumi, T.; Fukushi, H.; Sato, N.; Tsuji, T.; Yamanaka, K.; Akao, S. A Novel Method and an Equipment for Generating the Standard Moisture in Gas Flowing through a Pipe. Sensors 2018, 18, 3438.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop