Fully Integrated Mechanoluminescent Devices with Nanometer-Thick Perovskite Film as Self-Powered Flexible Sensor for Dynamic Pressure Sensing

2020 ◽  
Vol 3 (7) ◽  
pp. 6749-6756 ◽  
Author(s):  
Md Abu S. Shohag ◽  
Vincent O. Eze ◽  
Lucas Braga Carani ◽  
Okenwa I. Okoli
Keyword(s):  
Dynamic Pressure ◽  
Pressure Sensing ◽  
Fully Integrated ◽  
Flexible Sensor ◽  
Self Powered

scholarly journals Flexible Multiscale Pore Hybrid Self-Powered Sensor for Heart Sound Detection

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4508
Author(s):  
Boyan Liu ◽  
Liuyang Han ◽  
Lyuming Pan ◽  
Hongzheng Li ◽  
Jingjing Zhao ◽  
...  
Keyword(s):  
Piezoelectric Coefficient ◽  
Heart Sound ◽  
Piezoelectric Materials ◽  
Ferroelectric Material ◽  
Flexible Sensor ◽  
Β Phase ◽  
Short Processing Time ◽  
Sound Detection ◽  
Corona Poling ◽  
Self Powered

This research introduces an idea of producing both nanoscale and microscale pores in piezoelectric material, and combining the properties of the molecular β-phase dipoles in ferroelectric material and the space charge dipoles in order to increase the sensitivity of the sensor and modulate the response frequency bandwidth of the material. Based on this idea, a bi-nano-micro porous dual ferro-electret hybrid self-powered flexible heart sound detection sensor is proposed. Acid etching and electrospinning were the fabrication processes used to produce a piezoelectric film with nanoscale and microscale pores, and corona poling was used for air ionization to produce an electret effect. In this paper, the manufacturing process of the sensor is introduced, and the effect of the porous structure and corona poling on improving the performance of the sensor is discussed. The proposed flexible sensor has an equivalent piezoelectric coefficient d33 of 3312 pC/N, which is much larger than the piezoelectric coefficient of the common piezoelectric materials. Experiments were carried out to verify the function of the flexible sensor together with the SS17L heart sound sensor (BIOPAC, Goleta, CA, USA) as a reference. The test results demonstrated its practical application for wearable heart sound detection and the potential for heart disease detection. The proposed flexible sensor in this paper could realize batch production, and has the advantages of flexibility, low production cost and a short processing time compared with the existing heart sound detection sensors.

Dynamic pressure sensing with a side-hole birefringent optical fiber

1991 ◽  
Vol 16 (13) ◽  
pp. 1043 ◽  
Author(s):  
M. N. Charasse ◽  
M. Turpin ◽  
J. P. Le Pesant
Keyword(s):  
Optical Fiber ◽  
Dynamic Pressure ◽  
Pressure Sensing ◽  
Side Hole ◽  
Birefringent Optical Fiber

Self‐Powered Flexible Sensor Based on the Graphene Modified P(VDF‐TrFE) Electrospun Fibers for Pressure Detection

2019 ◽  
Vol 304 (12) ◽  
pp. 1900504 ◽  
Author(s):  
Ping Li ◽  
Libo Zhao ◽  
Zhuangde Jiang ◽  
Mingzhi Yu ◽  
Zhen Li ◽  
...  
Keyword(s):  
Electrospun Fibers ◽  
Flexible Sensor ◽  
Self Powered

Studies of temperature-insensitive dynamic pressure sensing using elliptical-core side-hole fibers

2003 ◽  
Author(s):  
Wojtek J. Bock ◽  
Magdalena S. Nawrocka ◽  
Waclaw Urbanczyk ◽  
Jan Wojcik
Keyword(s):  
Dynamic Pressure ◽  
Pressure Sensing ◽  
Side Hole ◽  
Elliptical Core

Dynamic pressure sensing with a fiber-optic polarimetric pressure transducer with two-wavelength passive quadrature readout

1998 ◽  
Vol 37 (4) ◽  
pp. 663 ◽  
Author(s):  
Norbert Fürstenau ◽  
Markus Schmidt ◽  
Wojtek J. Bock ◽  
Waclaw Urbanczyk
Keyword(s):  
Pressure Transducer ◽  
Fiber Optic ◽  
Dynamic Pressure ◽  
Pressure Sensing

Self-powered artificial electronic skin for high-resolution pressure sensing

Nano Energy ◽  
2017 ◽  
Vol 32 ◽  
pp. 389-396 ◽  
Author(s):  
Mingyuan Ma ◽  
Zheng Zhang ◽  
Qingliang Liao ◽  
Fang Yi ◽  
Linhong Han ◽  
...  
Keyword(s):  
High Resolution ◽  
Pressure Sensing ◽  
Electronic Skin ◽  
Self Powered
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