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TitleDevelopment and validation of a pressure transducer and its electronics for esophageal manometry
Author(s)Ferreira, D. S.
Gonçalves, L. M.
Correia, J. H.
Minas, Graça
Esophageal motility disorders
Solid-state strain gauge
Issue date26-Jan-2011
Abstract(s)This paper reports the development and validation of strain gauge transducers and its readout electronics with the ultimate goal of integration in a commercial endoscopic capsule (EC). The deposition process of strain gauge transducers on a capsule surface, using microfabrication techniques, is described. An electronic circuit is designed, implemented and tested for the amplification of the transducer output signal. Electromechanical tests are performed on a cylindrical tube, which simulates the capsule weight and dimensions, and the obtained results allowed establishing a correlation between the output signal and the stress applied on an EC. These results represent an important step for the implementation of a more advanced capsule manometry system.
TypeConference paper
AccessRestricted access (UMinho)
Appears in Collections:CAlg - Artigos em livros de atas/Papers in proceedings
DEI - Artigos em atas de congressos internacionais

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