Results 11 to 20 of about 1,299,345 (347)
Verification of flow velocity measurements using micrometer-order thermometers [PDF]
Scientific Reports, 2021 In flow velocity measurements, resolution, miniaturization, and accuracy of measuring devices are important issues because the measuring devices significantly affect the flow in the micro-space, sonic flow, and turbulent flow.
Naoki Takegawa +4 more
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Detonation Velocity Measurements Using Rare-Earth Doped Fibres [PDF]
Sensors, 2019 In this paper, a simple detonation velocity measurement scheme is presented, which exploits the length-dependent amplified spontaneous emission (ASE) power emitted by off-the-shelf Er-doped fibres.
Josh Pooley +3 more
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Clog-Free Trilobite Filtration: Tunable Flow Setup and Velocity Measurements [PDF]
Micromachines, 2020 The ability to separate and filter out microscopic objects lies at the core of many biomedical applications. However, a persistent problem is clogging, as biomaterials stick to the internal chip surface and limit device efficiency and liability. Here, we
Endre Joachim Mossige, Atle Jensen
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Optimised Chirped Fibre Bragg Gratings for Detonation Velocity Measurements [PDF]
Sensors, 2019 Over the last decade, the use of chirped fibre Bragg gratings (CFBGs) in detonation velocity experiments has been steadily increasing. In this paper, we show how CFBG design parameters—chirp-rate, reflectivity and apodisation—affect linearity
Josh Pooley +3 more
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Frequency-comb-calibrated Laser Heterodyne Radiometry for Precision Radial Velocity Measurements [PDF]
The Astrophysical Journal Supplement SeriesDisk-integrated observations of the Sun provide a unique vantage point to explore stellar activity and its effect on measured radial velocities. Here we report a new approach for disk-integrated solar spectroscopy and evaluate its capabilities for solar ...
Ryan K. Cole +8 more
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SURFACE FLOW VELOCITY MEASUREMENTS FROM UAV-BASED VIDEOS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 Most measuring methods for determining the volumetric flow rate or surface flow velocity have in common that they cannot be safely used under extreme outflow conditions. Especially in catastrophic situations, it is of particular interest to determine the
J. Brauneck, T. Gattung, R. Jüpner
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Applied Sciences, 2017 We present a strategy for designing an α - β - η - θ filter, a fixed-gain moving-object tracking filter using position and velocity measurements.
Kenshi Saho, Masao Masugi
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Quantitative measurement of hopper flow using MRI [PDF]
EPJ Web of Conferences, 2021 To gain fundamental insight into granular flow behaviour, quantitative measurements of velocity and solid fraction are required. The aim of this study is to measure the solid fraction and velocity of 3D granular flows quantitively using a recently ...
Mehdizad Maral +3 more
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Aerospace, 2019 The current work experimentally investigates the flowfield characteristics of anunder-expanded turbulent jet impinging on a solid surface for various nozzle-to-plate distances2.46Dj, 1.64Dj, and 0.82Dj (Dj is the jet hydraulic diameter), and nozzle ...
Duy Thien Nguyen +2 more
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Single camera 3D planar Doppler velocity measurements, using two frequency planar Doppler velocimetry (2v-PDV) and imaging fibre bundles [PDF]
, 2006 A modified Planar Doppler Velocimetry (PDV) technique, two frequency PDV (2v-PDV), is described that allows measurements of the velocity field over a plane defined by a laser light sheet using sequential illumination of the flow with two closely ...
Charrett, Thomas O. H. +2 more
core +1 more source