Results 241 to 250 of about 15,704 (280)

Self-powered wearable sensing devices for digital health

Materials Horizons
This review focuses on self-powered wearable sensing devices that utilize human energy, introducing their power supply mechanism and efficiency improvement methods.
Yumeng Zhang, Engui Wang, Han Ouyang, Zhou Li   +3 more
openaire   +2 more sources

Self-powered Sensing for Chemical and Environmental Detection

2016
In this chapter, we present self-powered chemical/environmental sensors, the working principle of which relies on the changeof triboelectric charge density when the pretreated triboelectric surface has been assembled with certain chemical species, usually by immersing it in the aqueous solution of chemicals.
Wang, Zhong Lin, Lin, Long, Chen, Jun, Niu, Simiao, Zi, Yunlong   +4 more
openaire   +2 more sources

A self-powered, self-sensing magnetorheological damper

2010 IEEE International Conference on Mechatronics and Automation, 2010
Magnetorheological (MR) dampers are promising for semi-active vibration control of various dynamic systems. In the current MR damper system, separate power supply and dynamic sensor are required. This paper is aimed to propose and investigate a self-powered, self-sensing MR damper, which integrates energy harvesting, sensing and MR damping technologies
Chao Chen, Wei-Hsin Liao
openaire   +1 more source

Strain-Insensitive Supercapacitors for Self-Powered Sensing Textiles

ACS Nano
Yarn-based supercapacitors and sensors can be easily integrated into textiles to form flexible and lightweight self-powered wearable electronic devices, which enable stable and continuous signal detection without an external power source. However, most current supercapacitors for self-powered systems lack the stretchability to adapt to complex human ...
Shasha Wang, Yimeng Li, Leqian Wei, Jianhua Zhu, Qian Zhang, Lizhen Lan, Liqin Tang, Fujun Wang, Ze Zhang, Lu Wang, Jifu Mao   +10 more
openaire   +2 more sources

Ultrasensitive self-powered pressure sensing system

Extreme Mechanics Letters, 2015
Portable and flexible pressure sensors with highly sensitive and small size have great potential applications in areas such as wearable electronics, environmental monitoring, and medical equipment. Here, we demonstrate an integrated self-powered pressure sensing system made of a passive resistive pressure sensor and a triboelectric nanogenerator. Based
Jianjun Luo, Feng Ru Fan, Tao Zhou, Wei Tang, Fei Xue, Zhong Lin Wang   +5 more
openaire   +1 more source

Towards a Self-Powered ECG and PPG Sensing Wearable Device

2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2021
This paper presents a multifunctional sensor interface system-on-chip (SoC) for developing self-powered Electrocardiography (ECG) and Photoplethysmography (PPG) sensing wearable devices. The proposed SoC design consists of switch-capacitor-based LED driver and analog front-end (AFE) for PPG sensing, ECG sensing AFE, and power management unit for energy
Linran Zhao, Yaoyao Jia
openaire   +2 more sources

Self-powered Sensing for Vibration and Biomedical Monitoring

2016
Self-powered sensors can be generally realized by using the actively generated electrical signals in response to a stimulation/triggering from the ambient environment. Owing to the low-frequency sensitivity of TENG, it is ideally suited for sensing vibration and biological signals related to human health. The magnitude, frequency, number of periods and
Wang, Zhong Lin, Lin, Long, Chen, Jun, Niu, Simiao, Zi, Yunlong   +4 more
openaire   +2 more sources

Self-powered sensing for health monitoring and robotics

Soft Science
Self-powered sensing technology plays a key role in autonomous and portable systems, with applications in health monitoring and robotics. These sensors, which do not rely on external power sources, offer stable, continuous data acquisition for real-time monitoring and complex interactions.
Shu-Zheng Liu, Wen-Tao Guo, Xin-Hua Zhao, Xin-Gui Tang, Qi-Jun Sun   +4 more
openaire   +1 more source

Flexible Technologies for Self-Powered Wearable Health and Environmental Sensing

Proceedings of the IEEE, 2015
This article provides the latest advances from the NSF Advanced Self-powered Systems of Integrated sensors and Technologies (ASSIST) center. The work in the center addresses the key challenges in wearable health and environmental systems by exploring technologies that enable ultra-long battery lifetime, user comfort and wearability, robust medically ...
Veena Misra, Alper Bozkurt, Benton H. Calhoun, Thomas N. Jackson, Jesse Jur, John C. Lach, Bongmook Lee, John Muth, Ömer Oralkan, Mehmet Ozturk, Susan Trolier-McKinstry, Daryoosh Vashaee, David D. Wentzloff, Yong Zhu 0003   +13 more
openaire   +1 more source

Self-powered Sensing for Human-Machine Interface

2016
In this chapter, we discussed the first type of pressure/touch sensor based on TENG. In general, the pressure response contains a high sensitivity region at relatively low pressure, and a low sensitivity region at higher pressure. Possible explanations of this behavior include full closing of air gap or saturation of increasing contact area between the
Wang, Zhong Lin, Lin, Long, Chen, Jun, Niu, Simiao, Zi, Yunlong   +4 more
openaire   +2 more sources