A fast method to measure the volume of a large cavity

Xu, Qian and Huang, Yi and Xing, Lei and Tian, Zhihao and Fei, Zhouxiang and Zheng, Liuji (2015) A fast method to measure the volume of a large cavity. IEEE Access, 3. pp. 1555-1561. ISSN 2169-3536 (https://doi.org/10.1109/ACCESS.2015.2476661)

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Abstract

How to quickly and accurately measure the volume of a large cavity is challenging. This paper presents an efficient method to measure the volume of a large conducting cavity. The proposed method is based on statistical wave theory. By measuring the Q factor in the time and frequency domains, the volume of the cavity can be extracted. In the time domain, the Q factor can be extracted directly from the time domain response, while in the frequency domain, the Q factor depends on the volume of the cavity and the transferred power; the transferred power can be measured directly. By correcting the frequency domain Q with the radiation efficiency of antennas, the Q factors obtained from both the time and frequency domains are equal in a well-stirred chamber; this provides an opportunity to measure the volume of the cavity. Measurements are conducted to verify the proposed method. Although the measurement is conducted using electromagnetic waves, acoustic waves can also be used; in this case, the approach can be applied to any cavity, not limited to a conducting cavity. The advantages and the limitations of the proposed method are also discussed.

  • Item type:Article
    ID code:71961
    Dates:
    Date
    Event
    11 September 2015
    Published
    8 August 2015
    Accepted
    Notes:© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Science > Mathematics
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:02 Apr 2020 09:19
    Last modified:16 Apr 2024 00:27
    URI:https://strathprints.strath.ac.uk/id/eprint/71961
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