Results 21 to 30 of about 213,006 (307)

Assessment of digital image correlation measurement errors: methodology and results [PDF]

open access: yes, 2009
Optical full-field measurement methods such as Digital Image Correlation (DIC) are increasingly used in the field of experimental mechanics, but they still suffer from a lack of information about their metrological performances. To assess the performance
Vacher, Pierre   +14 more
core   +1 more source

Force-displacement measurements in tableting

open access: yesJournal of Pharmacy and Pharmacology, 1985
Abstract The influence of particle interaction, i.e. friction and bonding, on the net work (NETW) during compaction and on Heckel plots was tested by varying the particle size, the lubrication or the moisture content. The NETW was found to be significantly affected by particle interaction. The yield pressure, calculated from Heckel plots,
G, Ragnarsson, J, Sjögren
openaire   +2 more sources

The Influence of Pillar Displacements on Geodetic Measurements [PDF]

open access: yesApplied Sciences, 2020
This paper deals with the effects that displacements of the measuring pillar have on precise geodetic measurements. The changes in the position of the control points on the object or its surroundings can only be determined with well stabilized and stable reference points.
Robert Močnik   +3 more
openaire   +2 more sources

Real-Time and Long-Distance Measurement of Displacement Based on Optoelectronic Oscillator

open access: yesIEEE Access, 2019
A frequency-encoded real-time and long-distance displacement measurement method based on two cross-referencing optoelectronic oscillators (OEOs) is proposed and experimentally demonstrated.
Zhiqiang Fan   +5 more
doaj   +1 more source

Experimental study on lateral displacement measurement using air-coupled ultrasound transducers

open access: yesMechanical Engineering Journal, 2014
We propose a novel measurement method for directly measuring the lateral displacement of structures by using air-coupled ultrasound transducers. The normally-distributed far field of an ultrasound transducer in a lateral direction is taken advantage of ...
Iwao MATSUYA   +2 more
doaj   +1 more source

Assessment of a Dual-Wavelength Compensation Technique for Displacement Sensors Using Plastic Optical Fibers [PDF]

open access: yes, 2012
The paper analyzes the performance of a dual-wavelength technique devised to compensate power fluctuations in intensity-modulated plastic optical fiber sensors, which were specifically conceived for the measurement of displacements in industrial and ...
Massimo Olivero   +7 more
core   +1 more source

Dynamic surface displacement measurement using carrier optical vortex interferometer: A numerical study

open access: yes, 2023
The measurement of dynamic surface displacement is crucial in understanding mechanical and thermophysical dynamics at nanometre to micrometre-scale. Interferometers using optical vortices are gaining attention due to their ability to demodulate fringe ...
Helia Hooshmand   +7 more
core   +1 more source

A newly conceived cylinder measuring machine and methods that eliminate the spindle errors [PDF]

open access: yes, 2012
Advanced manufacturing processes require improving dimensional metrology applications to reach a nanometric accuracy level. Such measurements may be carried out using conventional highly accurate roundness measuring machines.
David, Jean Marie   +6 more
core   +1 more source

Dynamic Displacement Estimation for Long-Span Bridges Using Acceleration and Heuristically Enhanced Displacement Measurements of Real-Time Kinematic Global Navigation System

open access: yesSensors, 2020
In this paper, we propose a dynamic displacement estimation method for large-scale civil infrastructures based on a two-stage Kalman filter and modified heuristic drift reduction method.
Kiyoung Kim, Hoon Sohn
doaj   +1 more source

Design and Testing of Inertial System for Landslide Displacement Distribution Measurement

open access: yesSensors, 2020
Landslide displacement monitoring plays a fundamental role in the study of landslide evolution mechanisms, forecasting, risk assessment, prevention, and control. To fill the deficiencies of traditional instrumentation for measuring landslide displacement
Yongquan Zhang   +7 more
doaj   +1 more source

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