Results 1 to 10 of about 249,649 (113)

Free-Surface Velocity Measurement Using Direct Sensor Orientation-Based STIV [PDF]

open access: yesMicromachines, 2022
Particle image velocimetry (PIV) is a quantitative flow visualization technique, which greatly improves the ability to characterize various complex flows in laboratory and field environments. However, the deployment of reference objects or ground control
Zhen Zhang   +4 more
doaj   +2 more sources

A New Adaptive GCC Method and Its Application to Slug Flow Velocity Measurement in Small Channels [PDF]

open access: yesSensors, 2022
In this work, an adaptive generalized cross-correlation (AGCC) method is proposed that focuses on the problem of the conventional cross-correlation method not effectively realizing the time delay estimation of signals with strong periodicity.
Hua Xia   +4 more
doaj   +2 more sources

A Velocity Measurement Method Based on Charge Induction [PDF]

open access: yesSensors, 2023
In this paper, based on the principle of charge induction, a new velocity measurement method is proposed. A moving target generates a low-frequency electric field, which can be induced with an electrode and detection frontend.
Yangbin Chi   +3 more
doaj   +2 more sources

Axonal Conduction Velocity Measurement [PDF]

open access: yesBio-Protocol, 2017
Action potential conduction velocity is the speed at which an action potential (AP) propagates along an axon. Measuring AP conduction velocity is instrumental in determining neuron health, function, and computational capability, as well as in determining
Margaret DeMaegd   +2 more
doaj   +2 more sources

Development of a Shock and Detonation Velocity Measurement System Using Chirped Fiber Bragg Gratings [PDF]

open access: yesSensors, 2020
Dynamic measurements of shock and detonation velocities are performed using long chirped fiber Bragg gratings (CFBGs). Such thin probes, with a diameter of typically 125 µm or even 80 µm can be directly inserted into high-explosive (HE) samples
Yohan Barbarin   +9 more
doaj   +2 more sources

Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor

open access: yesSensors, 2023
We have developed a new method for measuring temperature and velocity at a high spatial resolution (minimum 2.56 mm pitch along an optical fiber). The developed method uses the same principle as a hot wire anemometer, where the velocity perpendicular to ...
Masashi Sekine, Masahiro Furuya
doaj   +3 more sources

Algorithm for Determining Three Components of the Velocity Vector of Highly Maneuverable Aircraft

open access: yesComputation, 2023
We developed a signal processing algorithm to determine three components of the velocity vector of a highly maneuverable aircraft. We developed an equation of the distance from an aircraft to an underlying surface.
Volodymyr Pavlikov   +8 more
doaj   +1 more source

INFLUENCE OF THE MEASURING TOOLS ON THE FLOW CHARACTERISTICS IN VORTEX CHAMBER PUMP [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2021
Problem. Perturbation of the flow by measuring instruments forces researchers to choose optical research methods. But these methods significantly increase the cost of experimental research, due to the high cost of optical-type measuring equipment. On the
Rogovyi Andrii, Neskorozhenyi Artem
doaj   +1 more source

Measurement Method for the Flight Parameters of a Small Flying Object Using a Multi-Dimensional LED Detection Array

open access: yesPhotonics, 2023
This article proposes a measurement method using a multi-dimensional LED detection array, which can be used to obtain the flight parameters (i.e., impact coordinates, flight velocity, and incident angle) of a small flying object. Firstly, the composition
Tao Dong, Siqi Li, Ding Chen, Ziyu Yang
doaj   +1 more source

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