TY  - JOUR
A1  - Fang, Peng
A1  - Ma, Xingchen
A1  - Li, Xiangxin
A1  - Qiu, Xunlin
A1  - Gerhard, Reimund
A1  - Zhang, Xiaoqing
A1  - Li, Guanglin
T1  - Fabrication, Structure Characterization, and Performance Testing of Piezoelectret-Film Sensors for Recording Body Motion
T2  - IEEE Sensors Journal
N2  - During muscle contractions, radial-force distributions are generated on muscle surfaces due to muscle-volume changes, from which the corresponding body motions can be recorded by means of so-called force myography (FMG). Piezo- or ferroelectrets are flexible piezoelectric materials with attractive materials and sensing properties. In addition to several other applications, they are suitable for detecting force variations by means of wearable devices. In this paper, we prepared piezoelectrets from cellular polypropylene films by optimizing the fabrication procedures, and developed an FMG-recording system based on piezoelectret sensors. Different hand and wrist movements were successfully detected on able-bodied subjects with the FMG system. The FMG patterns were evaluated and identified by means of linear discriminant analysis and artificial neural network algorithms, and average motion-classification accuracies of 96.1% and 94.8%, respectively, were obtained. This paper demonstrates the feasibility of using piezoelectret-film sensors for FMG and may thus lead to alternative methods for detecting body motion and to related applications, e.g., in biomedical engineering or structural-health monitoring.
KW  - Forcemyography
KW  - motion registration
KW  - piezoelectret
KW  - film sensor
KW  - wearable
Y1  - 2017
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/54703
SN  - 1530-437X
SN  - 1558-1748
VL  - 18
IS  - 1
SP  - 401
EP  - 412
PB  - Inst. of Electr. and Electronics Engineers
CY  - Piscataway
ER  -