Results 11 to 20 of about 8,818,903 (344)

An Optical Frequency Domain Angle Measurement Method Based on Second Harmonic Generation

open access: yesSensors, 2021
This paper proposes a new optical angle measurement method in the optical frequency domain based on second harmonic generation with a mode-locked femtosecond laser source by making use of the unique characteristic of the high peak power and wide spectral
Wijayanti Dwi Astuti   +5 more
doaj   +2 more sources

IMU-Based Joint Angle Measurement for Gait Analysis

open access: yesSensors, 2014
This contribution is concerned with joint angle calculation based on inertial measurement data in the context of human motion analysis. Unlike most robotic devices, the human body lacks even surfaces and right angles.
Thomas Seel   +2 more
doaj   +2 more sources

Angle Measurement Based on Second Harmonic Generation Using Artificial Neural Network

open access: yesNanomanufacturing and Metrology, 2023
This article proposed an angle measurement method based on second harmonic generation (SHG) using an artificial neural network (ANN). The method comprises three sequential parts: SHG spectrum collection, data preprocessing, and neural network training ...
Kuangyi Li   +5 more
semanticscholar   +1 more source

Automated Cobb Angle Measurement for Adolescent Idiopathic Scoliosis Using Convolutional Neural Network

open access: yesDiagnostics, 2022
The Cobb angle measurement of the scoliotic spine is prone to inter- and intra-observer variations in the clinical setting. This paper proposes a deep learning architecture for detecting spine vertebrae from X-ray images to evaluate the Cobb angle ...
W. Caesarendra   +3 more
semanticscholar   +1 more source

Contact angle measurement for hydrogen/brine/sandstone system using captive-bubble method relevant for underground hydrogen storage

open access: yesAdvances in Water Resources, 2021
Subsurface porous formations provide large capacities for underground hydrogen storage (UHS). Successful utilization of these porous reservoirs for UHS depends on accurate quantification of the hydrogen transport characteristics at continuum (macro ...
L. Hashemi   +3 more
semanticscholar   +1 more source

Measures on mixing angles [PDF]

open access: yesPhysical Review D, 2009
40 pages, 3 figures, corrected references, cited figures etc., no substantial changes in ...
Gibbons, G.W.   +3 more
openaire   +4 more sources

Investigation of Angle Measurement Based on Direct Third Harmonic Generation in Centrosymmetric Crystals

open access: yesApplied Sciences, 2023
This paper proposed angle measurement methods based on direct third harmonic generation (THG) in centrosymmetric crystals. The principles of the intensity-dependent and the wavelength-dependent angle measurement methods were illustrated.
Kuangyi Li   +6 more
doaj   +1 more source

High Accuracy Acquisition of 3-D Flight Trajectory of Individual Insect Based on Phase Measurement

open access: yesSensors, 2016
Accurate acquisition of 3-D flight trajectory of individual insect could be of benefit to the research of insect migration behaviors and the development of migratory entomology.
Cheng Hu   +4 more
doaj   +1 more source

A New Payload Swing Angle Sensing Device and Its Accuracy

open access: yesSensors, 2021
Measuring the swing angle of a crane load is a relatively well-known but unsatisfactorily solved problem in technical practice. This measurement is necessary for the automatic stabilization of load swing without human intervention. This article describes
Patrik Grosinger   +4 more
doaj   +1 more source

Integration of Error Compensation of Coordinate Measuring Machines into Feature Measurement: Part I—Model Development

open access: yesSensors, 2016
The development of an error compensation model for coordinate measuring machines (CMMs) and its integration into feature measurement is presented. CMMs are widespread and dependable instruments in industry and laboratories for dimensional measurement ...
Roque Calvo   +3 more
doaj   +1 more source

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