Results 81 to 90 of about 6,984 (242)
Miniaturized Thermal Acoustic Gas Sensor Based on a CMOS Microhotplate and MEMS Microphone
Proceedings, 2020 In this work, we present a novel thermal acoustic gas sensor, fabricated using a CMOS microhotplate and MEMS microphone. The sensing mechanism is based on the detection of changes in the thermal acoustic conversion efficiency which is dependent on the ...
Richard Hopper +4 more
doaj +1 more source
Design and analysis of piezoelectric MEMS micro‐speaker based on scandium‐doped AlN thin film
Micro & Nano Letters, 2021 Piezoelectric MEMS microspeakers are promising candidates for miniaturized speakers, such as for in‐ear applications. Using lead‐free scandium doped aluminium nitride (ScAlN) thin film instead of lead zirconium titanate helps these speakers to be ...
Ahmed Fawzy, Yiming Lang, Menglun Zhang
doaj +1 more source
Noise and thermal stability of vibrating micro-gyrometers preamplifiers [PDF]
, 2007 The preamplifier is a critical component of gyrometer's electronics. Indeed the resolution of the sensor is limited by its signal to noise ratio, and the gyrometer's thermal stability is limited by its gain drift.
Dupret, A. +6 more
core +1 more source
Manufacture of Radio Frequency Micromachined Switches with Annealing [PDF]
, 2014 The fabrication and characterization of a radio frequency (RF) micromachined switch with annealing were presented. The structure of the RF switch consists of a membrane, coplanar waveguide (CPW) lines, and eight springs.
Dai, Ching-Liang, Lin, Cheng-Yang
core +2 more sources
All‐PEG‐Like Block Copolymers Self‐Assemble into Stealth Nanocarriers for Drug Delivery
Advanced Science, EarlyView.Self‐assembling nanoparticles composed entirely of POEGMA are engineered by exploiting side‐chain–dependent amphiphilicity and tunable thermoresponsive behavior. These single‐material nanocarriers encapsulate diverse hydrophobic drugs with high efficiency, retain therapeutic activity, improve in vivo efficacy, and evade anti‐PEG antibodies.
Parul Sirohi +15 more
wiley +1 more source
High‐Resolution Multispectral Photovoltaic Imagers from Visible to Short‐Wave Infrared
Advanced Science, EarlyView.We demonstrate a monolithic quad‐spectral imager that seamlessly integrates visible and short‐wave infrared detection on a single chip. Through direct photopatterning of an all‐polymer bulk heterojunction and colloidal quantum dots, the device achieves high‐resolution (640 × 512) imaging across 350–2400 nm, enabling multispectral capture for ...
Wanqing Li +12 more
wiley +1 more source
Titanium Dioxide Nanoparticle Humidity Microsensors Integrated with Circuitry on-a-Chip [PDF]
, 2014 A humidity microsensor integrated with a readout circuit on-a-chip fabricated using the commercial 0.18 μm CMOS (complementary metal oxide semiconductor) process was presented.
Dai, Ching-Liang +2 more
core +2 more sources
Development of a compact, IoT-enabled electronic nose for breath analysis [PDF]
, 2020 In this paper, we report on an in-house developed electronic nose (E-nose) for use with breath analysis. The unit consists of an array of 10 micro-electro-mechanical systems (MEMS) metal oxide (MOX) gas sensors produced by seven manufacturers.
Ayyala, Sai Kiran +3 more
core +1 more source
Advanced Energy and Sustainability Research, EarlyView.Triboelectric nanogenerators are vital for sustainable energy in future technologies such as wearables, implants, AI, ML, sensors and medical systems. This review highlights improved TENG neuromorphic devices with higher energy output, better stability, reduced power demands, scalable designs and lower costs.
Ruthran Rameshkumar +2 more
wiley +1 more source
Usage of Porous Al2O3 Layers for RH Sensing [PDF]
, 2007 At the Department of Electron Devices a cheap, more or less CMOS process compatible capacitive type RH sensor has been developed. Capacitive sensors are based on dielectric property changes of thin films upon water vapour uptake which depends on the ...
Juhász, László +3 more
core +2 more sources