Design and analysis of capacitive pressure sensor with L shaped electrode for enhanced sensitivity
Abstract Accurate pressure measurement is essential across a wide range of fields, including engineering, healthcare, and transportation. This paper presents the design and development of a novel capacitive pressure sensor featuring an extended measurement range and a large pressure application area...
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| Language: | English |
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Nature Portfolio
2025-08-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-14964-3 |
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| author | Bhagya R. Navada Nanditha Nair Santhosh Krishnan Venkata |
| author_facet | Bhagya R. Navada Nanditha Nair Santhosh Krishnan Venkata |
| author_sort | Bhagya R. Navada |
| collection | DOAJ |
| description | Abstract Accurate pressure measurement is essential across a wide range of fields, including engineering, healthcare, and transportation. This paper presents the design and development of a novel capacitive pressure sensor featuring an extended measurement range and a large pressure application area compared to the parallel plate capacitor configuration. The main innovation lies in the shape and structure of the L shaped electrode which enhances the operational range in terms of the displacement, increased surface area. The sensor exhibits enhanced sensitivity and operational efficiency, making it well suited for diverse applications. The sensor is modeled and simulated in COMSOL MULTIPHYSICS environment to validate its functionality under varying pressure. The electric field distribution, change in capacitance and change in displacement are measurable from the simulation. The sensor is capable of bidirectional making it suitable for the measurement of differential pressure. The proposed sensor simulation results achieve an 11% improvement in both sensitivity and range over conventional parallel plate designs. Furthermore, its ability to operate as a bidirectional device highlights its adaptability and potential for integration into advanced sensing systems. |
| format | Article |
| id | doaj-art-360486504cfc48bb85bea7b17a8a1baa |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-360486504cfc48bb85bea7b17a8a1baa2025-08-20T03:05:21ZengNature PortfolioScientific Reports2045-23222025-08-0115111610.1038/s41598-025-14964-3Design and analysis of capacitive pressure sensor with L shaped electrode for enhanced sensitivityBhagya R. Navada0Nanditha Nair1Santhosh Krishnan Venkata2Department of Instrumentation and Control Engineering, Manipal Institute of Technology, Manipal Academy of Higher EducationDepartment of Instrumentation and Control Engineering, Manipal Institute of Technology, Manipal Academy of Higher EducationDepartment of Instrumentation and Control Engineering, Manipal Institute of Technology, Manipal Academy of Higher EducationAbstract Accurate pressure measurement is essential across a wide range of fields, including engineering, healthcare, and transportation. This paper presents the design and development of a novel capacitive pressure sensor featuring an extended measurement range and a large pressure application area compared to the parallel plate capacitor configuration. The main innovation lies in the shape and structure of the L shaped electrode which enhances the operational range in terms of the displacement, increased surface area. The sensor exhibits enhanced sensitivity and operational efficiency, making it well suited for diverse applications. The sensor is modeled and simulated in COMSOL MULTIPHYSICS environment to validate its functionality under varying pressure. The electric field distribution, change in capacitance and change in displacement are measurable from the simulation. The sensor is capable of bidirectional making it suitable for the measurement of differential pressure. The proposed sensor simulation results achieve an 11% improvement in both sensitivity and range over conventional parallel plate designs. Furthermore, its ability to operate as a bidirectional device highlights its adaptability and potential for integration into advanced sensing systems.https://doi.org/10.1038/s41598-025-14964-3CapacitanceFabricationPressure sensorSensitivityRange |
| spellingShingle | Bhagya R. Navada Nanditha Nair Santhosh Krishnan Venkata Design and analysis of capacitive pressure sensor with L shaped electrode for enhanced sensitivity Scientific Reports Capacitance Fabrication Pressure sensor Sensitivity Range |
| title | Design and analysis of capacitive pressure sensor with L shaped electrode for enhanced sensitivity |
| title_full | Design and analysis of capacitive pressure sensor with L shaped electrode for enhanced sensitivity |
| title_fullStr | Design and analysis of capacitive pressure sensor with L shaped electrode for enhanced sensitivity |
| title_full_unstemmed | Design and analysis of capacitive pressure sensor with L shaped electrode for enhanced sensitivity |
| title_short | Design and analysis of capacitive pressure sensor with L shaped electrode for enhanced sensitivity |
| title_sort | design and analysis of capacitive pressure sensor with l shaped electrode for enhanced sensitivity |
| topic | Capacitance Fabrication Pressure sensor Sensitivity Range |
| url | https://doi.org/10.1038/s41598-025-14964-3 |
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