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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials
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Sensors and Materials, Volume 31, Number 10(2) (2019)
Copyright(C) MYU K.K.
pp. 3189-3196
S&M2004 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2019.2370
Published: October 25, 2019

Pursuing a Possibility of Fabricating Moisture Measurement Devices Using Microwaves Passing through Materials —Proposition of Measuring Quantity of Water Level Using Microwaves Passing through the Water Tank as the First Step of Development— [PDF]

Toshinari Akimoto, Keisuke Maruyama, Toyomi Miyagawa, Yuichi Nakazato, and Yasuhiro Kushihashi

(Received March 13, 2019; Accepted September 10, 2019)

Keywords: microwaves, moisture measurement, received signal strength, propagation delay time

In recent years, an increasing number of sensors are being required in various industrial or automated production techniques. In particular, the need for moisture measurement is high, but a noncontact high-precision moisture sensor has not been put to practical use. Therefore, in this research, we focused on a moisture sensor that transmits microwaves and tested two methods for evaluation and verification. In the experiment, the water in the water tank was measured using radio waves of 2.4 GHz. As a result, although measurement could not be performed with high accuracy using the received signal strength, measurement using the propagation delay time was highly accurate. This result will provide an index for the application of moisture sensors using microwaves in the future.

Corresponding author: Toshinari Akimoto


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Cite this article
Toshinari Akimoto, Keisuke Maruyama, Toyomi Miyagawa, Yuichi Nakazato, and Yasuhiro Kushihashi, Pursuing a Possibility of Fabricating Moisture Measurement Devices Using Microwaves Passing through Materials —Proposition of Measuring Quantity of Water Level Using Microwaves Passing through the Water Tank as the First Step of Development—, Sens. Mater., Vol. 31, No. 10, 2019, p. 3189-3196.



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