Comput Math Methods Med - EIT-based fabric pressure sensing.

Tópicos

{ monitor(1329) mobil(1314) devic(1160) }
{ activ(1138) subject(705) human(624) }
{ method(984) reconstruct(947) comput(926) }
{ blood(1257) pressur(1144) flow(957) }
{ system(1050) medic(1026) inform(1018) }
{ time(1939) patient(1703) rate(768) }
{ use(976) code(926) identifi(902) }
{ take(945) account(800) differ(722) }
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{ detect(2391) sensit(1101) algorithm(908) }
{ data(1714) softwar(1251) tool(1186) }
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{ model(2341) predict(2261) use(1141) }
{ spatial(1525) area(1432) region(1030) }
{ group(2977) signific(1463) compar(1072) }
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Resumo

This paper presents EIT-based fabric sensors that aim to provide a pressure mapping using the current carrying and voltage sensing electrodes attached to the boundary of the fabric patch. Pressure-induced shape change over the sensor area makes a change in the conductivity distribution which can be conveyed to the change of boundary current-voltage data. This boundary data is obtained through electrode measurements in EIT system. The corresponding inverse problem is to reconstruct the pressure and deformation map from the relationship between the applied current and the measured voltage on the fabric boundary. Taking advantage of EIT in providing dynamical images of conductivity changes due to pressure induced shape change, the pressure map can be estimated. In this paper, the EIT-based fabric sensor was presented for circular and rectangular sensor geometry. A stretch sensitive fabric was used in circular sensor with 16 electrodes and a pressure sensitive fabric was used in a rectangular sensor with 32 electrodes. A preliminary human test was carried out with the rectangular sensor for foot pressure mapping showing promising results.

Resumo Limpo

paper present eitbas fabric sensor aim provid pressur map use current carri voltag sens electrod attach boundari fabric patch pressureinduc shape chang sensor area make chang conduct distribut can convey chang boundari currentvoltag data boundari data obtain electrod measur eit system correspond invers problem reconstruct pressur deform map relationship appli current measur voltag fabric boundari take advantag eit provid dynam imag conduct chang due pressur induc shape chang pressur map can estim paper eitbas fabric sensor present circular rectangular sensor geometri stretch sensit fabric use circular sensor electrod pressur sensit fabric use rectangular sensor electrod preliminari human test carri rectangular sensor foot pressur map show promis result

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