Results 261 to 270 of about 139,401 (323)

Composition and Structural Design of Magnetic Alloy/Composites for High-Performance Microwave Absorption: A Review. [PDF]

Nanomaterials (Basel)
Zhou M, Zhou Z, Cheng H.
europepmc   +1 more source

Electronics with switchable flexibility for 3D conforming neural interfaces. [PDF]

Sci Adv
He X, Chamberlin M, Chen Z, Li J, Gao Y, Guo F, Ma Y, Wei X, Luo X, Zhang W, Qu J, Wei D, Zhu G, Wang F, Zhang H, Yu X, Chen X, Yang Y, Shi P.   +18 more
europepmc   +1 more source

An acoustically transmissive electrochemical vector hydrophone with horn-driven velocity amplification. [PDF]

Microsyst Nanoeng
Hu L, Liu Q, Zhang H, Jiang H, Zhao W, Zheng C, Gou G, Lu Y, Wang J, Chen D.   +9 more
europepmc   +1 more source

A fully-integrated wearable ultrasonic device for continuous blood pressure monitoring

Beker L, Peker S, Altuntop YA, Neşer G, Toymus A, Yılgör E, Yılgör İ, Bardakçı E.   +7 more
europepmc   +1 more source

Electrical Impedance Matching of PZT NanoGenerators

Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems, 2017
PZT nanofibers are piezoelectric and can produce a relatively high electrical output under strain that is useful for self-powered nanogenerators. To obtain maximum power output from these devices, their internal impedance needs to be matched with their applicable load impedance. Electrical impedance measurements of PZT nanofibers were performed using a
Richard Galos, Yong Shi, Zhongjing Ren, Hao Sun   +3 more
core   +3 more sources

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Electrical Impedance Matching Between Piezoelectric Transducer and Power Amplifier

IEEE Sensors Journal, 2020
Electrical impedance matching network (EIMN) is important for the piezoelectric transducer to transmit high-power acoustic signal over a wide bandwidth. Different from the impedance matching between transducers and interface devices with a fixed impedance of $50\Omega $ , this paper presents a novel method of designing an EIMN between transducer ...
Hanyun Zhou, S H Huang
exaly   +3 more sources

Electrical impedance matching based on piezoelectric ceramics for energy harvesting application

Materials Technology, 2020
Piezoelectric energy harvesting is one of the promising energy sources for wireless sensor networks and integrated devices.
Qingping Wang, Jin An Sam Oh, Tian Wu
exaly   +3 more sources

Mechanical and electrical impedance matching in a piezoelectric beam for Energy Harvesting

The European Physical Journal Special Topics, 2015
A piezoelectric beam is one of transducers for energy harvesting. It provides easy implementation and good performance in changing mechanical stress into electric voltage. In order to maximize output power, it is important to provide mechanical and electrical impedance matching.
A. Koszewnik, P. Grześ, W. Walendziuk
core   +4 more sources

Broadband electrical impedance matching for piezoelectric ultrasound transducers

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2011
This paper presents a systematic method for designing broadband electrical impedance matching networks for piezoelectric ultrasound transducers. The design process involves three steps: 1) determine the equivalent circuit of the unmatched piezoelectric transducer based on its measured admittance; 2) design a set of impedance matching networks using a ...
Haiying Huang
exaly   +4 more sources