A Rapid Method for Measuring the Volume of a Large Cavity Using Averaged Absorption Cross Section

Tian, Zhihao ORCID: 0000-0001-8378-9884, Huang, Yi ORCID: 0000-0001-7774-1024, Xu, Qian and Li, Gaosheng (2017) A Rapid Method for Measuring the Volume of a Large Cavity Using Averaged Absorption Cross Section. IEEE ACCESS, 5. pp. 18211-18218.

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Abstract

The rapid and accurate measurement of the volume of a large cavity is much in demand in practice, especially for a cavity of irregular shape. In this paper, a new method is proposed to measure the volume of a large cavity. This method is based on the measurement of the decay time constant of the cavity. A lossy object with a known averaged absorption cross section is used to aid the measurement. By measuring decay time constants of the cavity with and without the lossy object, the cavity volume can be extracted. It is found that only one antenna is required for the measurement and the whole measurement can be completed simply and rapidly. The method could be applied to both metallic and non-metallic cavities which makes the proposed method a very attractive alternative to existing methods.

Item Type:	Article
Uncontrolled Keywords:	Absorption cross section, cavity volume, decay time constant
Depositing User:	Symplectic Admin
Date Deposited:	21 Sep 2017 08:46
Last Modified:	16 Mar 2024 18:13
DOI:	10.1109/ACCESS.2017.2745698
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3009545