Application of a Modified First-Order Plate Theory to Structural Analysis of Sensitive Elements in a Pyroelectric Detector
Pyroelectric materials, with piezoelectricity and pyroelectricity, have been widely used in infrared thermal detectors. In this paper, a modified first-order plate theory is extended to analyze a pyroelectric sensitive element structure. The displacement, temperature, and electric potential expand a...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/95905 |
| _version_ | 1848766056221376512 |
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| author | Lian, M. Fan, C. Zhan, X. Zhao, M. Qin, G. Lu, Chunsheng |
| author_facet | Lian, M. Fan, C. Zhan, X. Zhao, M. Qin, G. Lu, Chunsheng |
| author_sort | Lian, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Pyroelectric materials, with piezoelectricity and pyroelectricity, have been widely used in infrared thermal detectors. In this paper, a modified first-order plate theory is extended to analyze a pyroelectric sensitive element structure. The displacement, temperature, and electric potential expand along the thickness direction. The governing equation of the pyroelectric plate is built up. The potential distributions with upper and lower electrodes are obtained under different supported boundary conditions. The corresponding numerical results of electric potential are consistent with those obtained by the three-dimensional finite element method. Meanwhile, the theoretical results of electric potential are close to that of experiments. The influence of supported boundary conditions, piezoelectric effect, and plate thickness are analyzed. Numerical results show that the piezoelectric effect reduces the electric potential. The thickness of the pyroelectric plate enhances the electric potential but reduces the response speed of the detector. It is anticipated that the pyroelectric plate theory can provide a theoretical approach for the structural design of pyroelectric sensitive elements. |
| first_indexed | 2025-11-14T11:45:04Z |
| format | Journal Article |
| id | curtin-20.500.11937-95905 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | eng |
| last_indexed | 2025-11-14T11:45:04Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-959052024-10-25T06:02:49Z Application of a Modified First-Order Plate Theory to Structural Analysis of Sensitive Elements in a Pyroelectric Detector Lian, M. Fan, C. Zhan, X. Zhao, M. Qin, G. Lu, Chunsheng electric potential first-order plate theory piezoelectricity pyroelectric detector pyroelectricity sensitive element Pyroelectric materials, with piezoelectricity and pyroelectricity, have been widely used in infrared thermal detectors. In this paper, a modified first-order plate theory is extended to analyze a pyroelectric sensitive element structure. The displacement, temperature, and electric potential expand along the thickness direction. The governing equation of the pyroelectric plate is built up. The potential distributions with upper and lower electrodes are obtained under different supported boundary conditions. The corresponding numerical results of electric potential are consistent with those obtained by the three-dimensional finite element method. Meanwhile, the theoretical results of electric potential are close to that of experiments. The influence of supported boundary conditions, piezoelectric effect, and plate thickness are analyzed. Numerical results show that the piezoelectric effect reduces the electric potential. The thickness of the pyroelectric plate enhances the electric potential but reduces the response speed of the detector. It is anticipated that the pyroelectric plate theory can provide a theoretical approach for the structural design of pyroelectric sensitive elements. 2024 Journal Article http://hdl.handle.net/20.500.11937/95905 10.3390/mi15081012 eng http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | electric potential first-order plate theory piezoelectricity pyroelectric detector pyroelectricity sensitive element Lian, M. Fan, C. Zhan, X. Zhao, M. Qin, G. Lu, Chunsheng Application of a Modified First-Order Plate Theory to Structural Analysis of Sensitive Elements in a Pyroelectric Detector |
| title | Application of a Modified First-Order Plate Theory to Structural Analysis of Sensitive Elements in a Pyroelectric Detector |
| title_full | Application of a Modified First-Order Plate Theory to Structural Analysis of Sensitive Elements in a Pyroelectric Detector |
| title_fullStr | Application of a Modified First-Order Plate Theory to Structural Analysis of Sensitive Elements in a Pyroelectric Detector |
| title_full_unstemmed | Application of a Modified First-Order Plate Theory to Structural Analysis of Sensitive Elements in a Pyroelectric Detector |
| title_short | Application of a Modified First-Order Plate Theory to Structural Analysis of Sensitive Elements in a Pyroelectric Detector |
| title_sort | application of a modified first-order plate theory to structural analysis of sensitive elements in a pyroelectric detector |
| topic | electric potential first-order plate theory piezoelectricity pyroelectric detector pyroelectricity sensitive element |
| url | http://hdl.handle.net/20.500.11937/95905 |