Results 81 to 90 of about 4,980,334 (237)

Feedback Enhanced Sensitivity in Optomechanics: Surpassing the Parametric Instability Barrier [PDF]

open access: yes, 2011
The intracavity power, and hence sensitivity, of optomechanical sensors is commonly limited by parametric instability. Here we characterize the parametric instability induced sensitivity degradation in a micron scale cavity optomechanical system ...
Andersen, Ulrik L.   +3 more
core   +3 more sources

Calibration of force sensor

open access: yesActa Mechatronica, 2023
The paper deals with the issue of calibration of an analogue force sensor with a voltage output. For measurement, the force sensor uses a deformation member with a tensometric bridge and a measuring amplifier. This measuring chain must be used for force measurement, but the measurement uncertainty of this measuring chain is not known. Force sensors are
Tatiana Kelemenova, Michal Kelemen
openaire   +1 more source

Biocompatible Soft Fluidic Strain and Force Sensors for Wearable Devices

open access: yesAdvanced Functional Materials, 2018
Fluidic soft sensors have been widely used in wearable devices for human motion capturing. However, thus far, the biocompatibility of the conductive liquid, the linearity of the sensing signal, and the hysteresis between the loading and release processes
Siyi Xu   +10 more
semanticscholar   +1 more source

Uncertainty in Visual Generative AI

open access: yesAlgorithms
Recently, generative artificial intelligence (GAI) has impressed the world with its ability to create text, images, and videos. However, there are still areas in which GAI produces undesirable or unintended results due to being “uncertain”.
Kara Combs, Adam Moyer, Trevor J. Bihl
doaj   +1 more source

Induced conductivity in sol-gel ZnO films by passivation or elimination of Zn vacancies

open access: yesAIP Advances, 2016
Undoped and Ga- and Al- doped ZnO films were synthesized using sol-gel and spin coating methods and characterized by X-ray diffraction, high-resolution scanning electron microscopy (SEM), optical spectroscopy and Hall-effect measurements.
D. J. Winarski   +10 more
doaj   +1 more source

Quantization error for weak RF simultaneous signal estimation

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
In a congested signal environment, it is difficult to obtain estimates of weak RF signal parameters. Determining signal parameter estimates in real time is a challenge for electronic warfare receivers that aim to receive multiple simultaneous signals ...
Mary Y. Lanzerotti   +2 more
doaj   +1 more source

Flexible force sensors for e-textiles [PDF]

open access: yes, 2017
This paper presents the development of inexpensive, lightweight, flexible polymer-based piezoresistive sensors appropriate for integration in e-textiles.
H Carvalho   +3 more
core   +1 more source

Hybrid Position and Force Control Without Force Sensor

open access: yesJournal of Robotics and Mechatronics, 1993
Generally, hybrid control is realized by sensor signal feedback of position and force. However, some robot manipulators do not have a force sensor due to the environment. Moreover, a precise force sensor is very expensive. In order to overcome these problems, we propose the estimation system of reaction force without using a force sensor.
Kiyoshi OHISHI   +2 more
openaire   +2 more sources

GeSn Nanobeam Light-Emitting Diode as a GHz-Modulated Light Source

open access: yesIEEE Photonics Journal, 2017
Designs and theoretical analysis are presented for a room temperature resonant-cavity-enhanced GeSn LED whose emission peaks at the 2 $\mu$m wavelength. The Ge/GeSn/Ge PIN hetero-diode of length 1 $\mu$m is embedded in a rib-type Ge-on-Si nanobeam having
Ricky Gibson   +2 more
doaj   +1 more source

Zero-shot visual reasoning through probabilistic analogical mapping

open access: yesNature Communications, 2023
Human reasoning is grounded in an ability to identify highly abstract commonalities governing superficially dissimilar visual inputs. Recent efforts to develop algorithms with this capacity have largely focused on approaches that require extensive direct
Taylor Webb   +4 more
doaj   +1 more source

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