Conductivity measurement using 3D printed re-entrant cavity resonator

Ali Musa Mohammed; Yi Wang; Talal Skaik; Sheng Li; Moataz Attallah

doi:10.1088/1361-6501/ac5134

Conductivity measurement using 3D printed re-entrant cavity resonator

Ali Musa Mohammed^*, Yi Wang, Talal Skaik, Sheng Li, Moataz Attallah

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

A technique for measuring effective conductivity of conductor materials using 3D printed re-entrant cavity resonator is proposed. An analytical formula for the extraction of the effective conductivity has been derived in relation to energy stored in the volume of the cavity geometry. A method of resonant cavity characterisation of material based on microwave losses is utilised for the measurements. The approach offers a simplified analytical method and also supports the measurements of sample with arbitrary thickness. Samples produced from three different manufacturing processes of computer numerical control (CNC) and 3D printing, made of aluminium, copper and stainless steel were measured to demonstrate the method. The 3D printed and copper coated polymer sample is considered as reference material for the measurements. The measured results have shown that the copper coated polymer sample have similar conductivity with that CNC copper. This signifies the good finishing, low surface roughness and quality of copper coating used in 3D printed polymer device.

Original language	English
Article number	055017
Number of pages	7
Journal	Measurement Science and Technology
Volume	33
Issue number	5
Early online date	18 Feb 2022
DOIs	https://doi.org/10.1088/1361-6501/ac5134
Publication status	Published - May 2022

Bibliographical note

Funding Information:
A M M wishes to acknowledge Petroleum Technology Development Fund (PTDF) Nigeria for the PhD scholarship. The work is partially funded by UK EPSRC Grant EP/S013113/1.

Publisher Copyright:
© 2022 The Author(s). Published by IOP Publishing Ltd.

Keywords

3D printing
additive manufacturing
conductivity
re-entrant cavity
surface roughness

ASJC Scopus subject areas

Instrumentation
Engineering (miscellaneous)
Applied Mathematics

Access to Document

10.1088/1361-6501/ac5134Licence: Creative Commons: Attribution (CC BY)

MohammedA2022ConductivityFinal published version, 1.13 MBLicence: Creative Commons: Attribution (CC BY)

Towards a 3D Printed Terahertz Circuit Technology
Wang, Y. (Co-Investigator) & Lancaster, M. (Principal Investigator)
Engineering & Physical Science Research Council
1/07/19 → 30/04/23
Project: Research Councils

Cite this

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title = "Conductivity measurement using 3D printed re-entrant cavity resonator",

abstract = "A technique for measuring effective conductivity of conductor materials using 3D printed re-entrant cavity resonator is proposed. An analytical formula for the extraction of the effective conductivity has been derived in relation to energy stored in the volume of the cavity geometry. A method of resonant cavity characterisation of material based on microwave losses is utilised for the measurements. The approach offers a simplified analytical method and also supports the measurements of sample with arbitrary thickness. Samples produced from three different manufacturing processes of computer numerical control (CNC) and 3D printing, made of aluminium, copper and stainless steel were measured to demonstrate the method. The 3D printed and copper coated polymer sample is considered as reference material for the measurements. The measured results have shown that the copper coated polymer sample have similar conductivity with that CNC copper. This signifies the good finishing, low surface roughness and quality of copper coating used in 3D printed polymer device.",

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AU - Mohammed, Ali Musa

AU - Wang, Yi

AU - Skaik, Talal

AU - Li, Sheng

AU - Attallah, Moataz

N1 - Funding Information: A M M wishes to acknowledge Petroleum Technology Development Fund (PTDF) Nigeria for the PhD scholarship. The work is partially funded by UK EPSRC Grant EP/S013113/1. Publisher Copyright: © 2022 The Author(s). Published by IOP Publishing Ltd.

PY - 2022/5

Y1 - 2022/5

N2 - A technique for measuring effective conductivity of conductor materials using 3D printed re-entrant cavity resonator is proposed. An analytical formula for the extraction of the effective conductivity has been derived in relation to energy stored in the volume of the cavity geometry. A method of resonant cavity characterisation of material based on microwave losses is utilised for the measurements. The approach offers a simplified analytical method and also supports the measurements of sample with arbitrary thickness. Samples produced from three different manufacturing processes of computer numerical control (CNC) and 3D printing, made of aluminium, copper and stainless steel were measured to demonstrate the method. The 3D printed and copper coated polymer sample is considered as reference material for the measurements. The measured results have shown that the copper coated polymer sample have similar conductivity with that CNC copper. This signifies the good finishing, low surface roughness and quality of copper coating used in 3D printed polymer device.

AB - A technique for measuring effective conductivity of conductor materials using 3D printed re-entrant cavity resonator is proposed. An analytical formula for the extraction of the effective conductivity has been derived in relation to energy stored in the volume of the cavity geometry. A method of resonant cavity characterisation of material based on microwave losses is utilised for the measurements. The approach offers a simplified analytical method and also supports the measurements of sample with arbitrary thickness. Samples produced from three different manufacturing processes of computer numerical control (CNC) and 3D printing, made of aluminium, copper and stainless steel were measured to demonstrate the method. The 3D printed and copper coated polymer sample is considered as reference material for the measurements. The measured results have shown that the copper coated polymer sample have similar conductivity with that CNC copper. This signifies the good finishing, low surface roughness and quality of copper coating used in 3D printed polymer device.

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Conductivity measurement using 3D printed re-entrant cavity resonator

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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Projects

Towards a 3D Printed Terahertz Circuit Technology

Cite this