A novel capacitive pressure sensor structure with high sensitivity and quasi-linear responseUne nouvelle structure de capteur de pression capacitif avec haute sensibilitée et réponse quasi-linéaire |
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Authors: | Aziz Ettouhami Noureddine Zahid Mourad Elbelkacemi |
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Affiliation: | Laboratoire conception et systèmes, faculté des sciences, Université Mohammed V, avenue Ibn Battouta, BP 1014, Rabat, Morocco |
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Abstract: | This paper describes a new capacitive structure of pressure sensor to increase simultaneously the sensitivity and the linearity of the transducer. This structure contains two capacitors which change in response to pressure, but in opposite senses. To increase even more the sensitivity of each capacitor, the pressure sensitive diaphragm carries a central boss. The optimal position and the length of the boss are also calculated. To cite this article: A. Ettouhami et al., C. R. Mecanique 332 (2004). |
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Keywords: | Control Capacitive pressure sensor Linearity Sensitivity Automatique Capteur de pression capacitif Linéarité Sensibilité |
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