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Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

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Published on: February 27, 2016

In-flight detection of small hypervelocity particles.

D M Robinson, W P Chu, J H Goad

|February 4, 2010

Summary

This summary is machine-generated.

This study presents a new method for detecting tiny, high-speed particles amid significant noise. The technique uses spatial filtering to improve accuracy in particle detection systems.

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Last Updated: Jun 16, 2026

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High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

Area of Science:

Physics
Engineering

Background:

Detecting small, high-velocity particles in noisy environments is challenging.
Existing methods may struggle with high background interference.

Purpose of the Study:

To develop and demonstrate a novel technique for detecting 25-micrometer hypervelocity (10 km/sec) in-flight particles.
To reduce spurious noise effects in particle detection systems.

Main Methods:

Utilized a spatial filtering principle for noise reduction.
Incorporated a beam stop in the entrance aperture.
Employed a bandpass filter in the transform plane.

Main Results:

Successfully detected in-flight hypervelocity particles.
Demonstrated noise reduction capabilities of the spatial filtering system.
Experimental validation using particles from an exploding lithium wire electrothermal accelerator.

Conclusions:

The described spatial filtering technique is effective for detecting small, hypervelocity particles.
The system shows promise for applications requiring high-sensitivity particle detection in noisy conditions.