Results 61 to 70 of about 93,403 (291)

Unlocking Photodetection Mode Switching from a Simple Lateral Design

open access: yesAdvanced Functional Materials, EarlyView.
A simple lateral 2D perovskite photodetector capable of switching among transient, continuous, and dual transient/continuous photoresponse modes is achieved by integrating photoconductive effects with capacitive coupling from the SiO2/Si substrate. Such light‐programmable photodetection mode switching enables triple‐channel information transmission and
Zijun (June) Yong   +10 more
wiley   +1 more source

Research on Loosening Identification of High-Strength Bolts Based on Relaxor Piezoelectric Sensor

open access: yesBuildings
Bridges play a key and controlling role in transportation systems. Steel bridges are favored for their high strength, good seismic performance, and convenient construction.
Ruisheng Feng   +4 more
doaj   +1 more source

Improved gas ring laser [PDF]

open access: yes, 1968
Minimizing mode coupling improves sensing resolution of a gas ring laser in a gimballess gyroscope system or inertial rotation sensor. The piezoelectric-driven corner mirrors of the ring laser are oscillated in a direction parallel to their surfaces and ...
Coccoli, J. D., Lawson, J. R.
core   +1 more source

Fundamental study on a thin-film ae sensor for measurement of behavior of a multi-pad contact slider [PDF]

open access: yes, 1996
To study the fundamental dynamic characteristics of a multi-pad slider for contact recording, we developed a thin-film piezoelectric acoustic emission array sensor on an Si-suspension with an array pattern similar to that of contact pads.
Burger, G.J.   +3 more
core   +3 more sources

Tracing Sub‐Monolayer Contamination on Wafer‐Scale 2D Materials

open access: yesAdvanced Functional Materials, EarlyView.
Sub‐monolayer adventitious carbon contamination limits the performance and reproducibility of 2D material‐based devices. This study demonstrates scanning helium microscopy (SHeM) as a non‐destructive, ultra‐sensitive tool for wafer‐scale imaging of surface cleanliness.
Chenyang Zhao   +7 more
wiley   +1 more source

An Energy Supply System for Wireless Sensor Network Nodes

open access: yesInternational Journal of Distributed Sensor Networks, 2012
The power source is a critical obstacle for wireless sensor network nodes. In order to prolong the lifetime of wireless sensor networks, this paper presents an energy supply system that uses a specially designed broadband piezoelectric energy harvesting ...
Guoqiang Zheng, Liwei Zhang, Jishun Li
doaj   +1 more source

Piezoelectric strain sensor with high sensitivity and high stretchability based on kirigami design cutting

open access: yesnpj Flexible Electronics, 2022
Wearable technology requires high-performance sensors with properties such as small size, flexibility, and wireless communication. Stretchability, sensitivity, and tunability are crucial sensor properties; stretchability and sensitivity ensure user ...
Young-Gyun Kim   +3 more
doaj   +1 more source

Performance testing of a low power consumption wireless sensor communication system integrated with an energy harvesting power source [PDF]

open access: yes, 2012
This paper presents the performance testing results of a wireless sensor communication system with low power consumption integrated with a vibration energy harvesting power source.
Giuliano, Alessandro   +4 more
core  

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

open access: yesAdvanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo   +2 more
wiley   +1 more source

Impact Monitoring for Aircraft Smart Composite Skins Based on a Lightweight Sensor Network and Characteristic Digital Sequences

open access: yesSensors, 2018
Due to the growing use of composite materials in aircraft structures, Aircraft Smart Composite Skins (ASCSs) which have the capability of impact monitoring for large-scale composite structures need to be developed.
Lei Qiu   +4 more
doaj   +1 more source

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