Modeling and simulation of infrared sensors using cantilever and bridge structures

A. Martínez-Torteya, G. Dieck-Assad, S. O. Martínez-Chapa

Resultado de la investigación

Resumen

Thermopiles have several advantages for working as infrared sensors and have already been used for applications in environmental monitoring and biomedical diagnostics. When designing thermopiles, it is of great importance to acknowledge the changes in the output voltage that the varying of each design variable may generate. In this work, the model of a thermopile with a bridge or cantilever structure that includes the thermocouples thickness, width and thermal conductivity, parameters not taken into account before, is developed. Choosing the thermocouples length for a thermopile with a fixed length membrane is not trivial. For the simulated structure with a membrane length of 900 nm, when varying the length of the thermocouples from 28 to 72% the length of the membrane, a difference in the output voltage of 81 μV was observed. A comparison between bridge and cantilever structures shows that the former achieves sensitivities up to 1.8 times the ones obtained with cantilever structures. © 2010 IEEE.
Idioma originalEnglish
Páginas717-720
Número de páginas4
DOI
EstadoPublished - 1 dic 2010
Publicado de forma externa
EventoProceedings - 2010 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2010 -
Duración: 1 dic 2010 → …

Conference

ConferenceProceedings - 2010 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2010
Período1/12/10 → …

Huella dactilar

Thermopiles
Thermocouples
Infrared radiation
Sensors
Membranes
Electric potential
Thermal conductivity
Monitoring

Citar esto

Martínez-Torteya, A., Dieck-Assad, G., & Martínez-Chapa, S. O. (2010). Modeling and simulation of infrared sensors using cantilever and bridge structures. 717-720. Papel presentado en Proceedings - 2010 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2010, . https://doi.org/10.1109/CERMA.2010.82
Martínez-Torteya, A. ; Dieck-Assad, G. ; Martínez-Chapa, S. O. / Modeling and simulation of infrared sensors using cantilever and bridge structures. Papel presentado en Proceedings - 2010 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2010, .4 p.
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Modeling and simulation of infrared sensors using cantilever and bridge structures. / Martínez-Torteya, A.; Dieck-Assad, G.; Martínez-Chapa, S. O.

2010. 717-720 Papel presentado en Proceedings - 2010 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2010, .

Resultado de la investigación

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AB - Thermopiles have several advantages for working as infrared sensors and have already been used for applications in environmental monitoring and biomedical diagnostics. When designing thermopiles, it is of great importance to acknowledge the changes in the output voltage that the varying of each design variable may generate. In this work, the model of a thermopile with a bridge or cantilever structure that includes the thermocouples thickness, width and thermal conductivity, parameters not taken into account before, is developed. Choosing the thermocouples length for a thermopile with a fixed length membrane is not trivial. For the simulated structure with a membrane length of 900 nm, when varying the length of the thermocouples from 28 to 72% the length of the membrane, a difference in the output voltage of 81 μV was observed. A comparison between bridge and cantilever structures shows that the former achieves sensitivities up to 1.8 times the ones obtained with cantilever structures. © 2010 IEEE.

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Martínez-Torteya A, Dieck-Assad G, Martínez-Chapa SO. Modeling and simulation of infrared sensors using cantilever and bridge structures. 2010. Papel presentado en Proceedings - 2010 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2010, . https://doi.org/10.1109/CERMA.2010.82