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

Volume

22

Issue

3

fYear

2015

fDate

Jun-15

Firstpage

1355

Lastpage

1359

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;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2015.7116322

Filename

7116322