MICROWAVE MEASUREMENTS OF MOISTURE-CONTENT OF AGGREGATE

被引：9
作者：
NAKAYAMA, S
机构：
[1] Electrical Science Laboratory, Hyogo University of Teacher Education, Yashirocho, Katogun, Hyogo, 673-14
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1994年 / 33卷 / 5A期
关键词：
MICROWAVE SENSOR; MOISTURE; AGGREGATE; SAND; COAXIAL CAVITY RESONATOR; MICROWAVE MEASUREMENT;
D O I：
10.1143/JJAP.33.2809
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An instantaneous method for measuring the moisture content in aggregate such as sand is developed using a microwave open-ended coaxial cavity resonator. We measure the attenuation and frequency shift of resonant peaks of the cavity resonator, which are related to the moisture content of the sand. The standard deviations in the attenuation and frequency shift are 0.30% and 0.14% in the percentage of moisture, respectively. The frequency shift measurement is better than the attenuation measurement to calculate the moisture content.
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页码：2809 / 2810
页数：2
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