Results 51 to 60 of about 19,315 (212)

Semi-autonomous scheme for pushing micro-objects [PDF]

open access: yes, 2009
-In many microassembly applications, it is often desirable to position and orient polygonal micro-objects lying on a planar surface. Pushing micro-objects using point contact provides more flexibility and less complexity compared to pick and place ...
Khan, Shahzad   +2 more
core   +1 more source

Graphene based piezoresistive pressure sensor

open access: yesApplied Physics Letters, 2013
We present a pressure sensor based on the piezoresistive effect of graphene. The sensor is a 100 nm thick, 280 μm wide square silicon nitride membrane with graphene meander patterns located on the maximum strain area. The multilayer, polycrystalline graphene was obtained by chemical vapor deposition.
Zhu, S.E. (author)   +3 more
openaire   +4 more sources

Pressure transducer and system for cryogenic environments [PDF]

open access: yes, 1992
A silicon pressure die is bonded to a borosilicate substrate above the pneumatic port. A Wheatstone bridge circuit is formed on the silicon pressure die and has bridge elements of silicon doped with boron to a deposit density level of approximately 1 x ...
Chapman, John J.
core   +1 more source

Piezoresistive effect of p-type single crystalline 3C-SiC on (111) plane [PDF]

open access: yes, 2016
This paper presents for the first time the effect of strain on the electrical conductivity of p-type single crystalline 3C-SiC grown on a Si (111) substrate.
Dao, Dzung Viet   +3 more
core   +2 more sources

Exfoliated Graphite Nanoplatelet-Carbon Nanotube Hybrid Composites for Compression Sensing [PDF]

open access: yes, 2020
In this study, we investigated the gauge factor and compressive modulus of hybrid nanocomposites of exfoliated graphite nanoplatelets (xGnP) and multiwalled carbon nanotubes (MWCNTs) in a polydimethylsiloxane matrix under compressive strain.
Jeong, Changyoon, Park, Young-Bin
core   +1 more source

Resonant Varifocal Micromirror with Piezoresistive Focus Sensor [PDF]

open access: yesMicromachines, 2016
This paper reports a microelectromechanical systems (MEMS) resonant varifocal mirror integrated with piezoresistive focus sensor. The varifocal mirror is driven electrostatically at a resonant frequency of a mirror plate to obtain the wide scanning range of a focal length. A piezoresistor is used to monitor the focal length of the varifocal mirror. The
Kenta Nakazawa   +6 more
openaire   +3 more sources

Electrostatic MEMS Two-Dimensional Scanning Micromirrors Integrated with Piezoresistive Sensors

open access: yesMicromachines
The MEMS scanning micromirror requires angle sensors to provide real-time angle feedback during operation, ensuring a stable and accurate deflection of the micromirror.
Yameng Shan   +6 more
doaj   +1 more source

Fabrication and characterization of a piezoresistive humidity sensor with a stress-free package [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2014
A highly miniaturized piezoresistive humidity sensor has been developed. The starting point of the development was a 1 × 1 mm2 piezoresistive pressure sensor chip.
T. Waber   +6 more
doaj   +1 more source

Tactile on-chip pre-processing with techniques from artificial retinas [PDF]

open access: yes, 2005
The interest in tactile sensors is increasing as their use in complex unstructured environments is demanded, like in tele-presence, minimal invasive surgery, robotics etc.
Liñán Cembrano, Gustavo   +4 more
core   +1 more source

Piezoresistive foam sensor arrays for marine applications [PDF]

open access: yesSensors and Actuators A: Physical, 2016
Spatially-dense pressure measurements are needed on curved surfaces in marine environments to provide marine vehicles with the detailed, real-time measurements of the near-field flow necessary to improve performance through flow control. To address this challenge, a waterproof and conformal pressure sensor array comprising carbon black-doped-silicone ...
Jeff E. Dusek   +2 more
openaire   +4 more sources

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