Title :
Piezoelectret sensor made from an electro-spun fluoropolymer and its use in a wristband for detecting heart-beat signals
Author :
Tajitsu, Yoshiro
Author_Institution :
Dept. of Electr. Eng., Kansai Univ., Suita, Japan
Abstract :
We developed a new wearable wristband-type piezo-sensor for detecting the pressure signals from the heartbeat. A piezoelectric porous electret made from electro-spun poly(tetrafluoroethylene) (PTFE) was used as the piezo-sensor material. This lightweight and flexibile porous PTFE electret exhibited high and stable piezoelectricity, enabling the realization of a piezo-sensor in a new wearable wristband-type instrument. Using the instrument, we observed a signal with detection accuracy equal to that of an electrocardiogram.
Keywords :
biomedical equipment; electric sensing devices; electrocardiography; medical signal detection; medical signal processing; piezoelectric devices; piezoelectricity; polymers; electro-spun poly(tetrafluoroethylene); electrocardiogram; electrospun fluoropolymer; heart-beat signal detection; piezoelectret sensor; piezoelectric porous electret; piezosensor material; pressure signals; stable piezoelectricity; wearable wristband-type instrument; wearable wristband-type piezosensor; Electrets; Electrodes; Films; Heart beat; Piezoelectricity; Plastics; Positron emission tomography; Electrets; fluoropolymer; heartbeat; piezoelectricity; wearable sensor;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2015.7116322
