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Volumetric Velocimetry Solutions

Volumetric Velocimetry Solutions

Volumetric Velocimetry Solutions

Product catalog summary
Introduction
Volumetric Velocimetry Solutions offer advanced instrumentation for volumetric and time-resolved measurements in fluid dynamics. These solutions support the entire process from setup to data processing, utilizing multicore and GPU technology for efficient data handling.

Key Features
  • Time-Resolved Measurements: Enables Lagrangian history tracking of individual particles, providing access to acceleration parameters in the Navier-Stokes equation.
  • Telecentric Lenses: Simplifies calibration and ensures consistent magnification and voxel size.
  • Scanning Illumination System: Increases seeding density and reduces ghost particle issues.
  • Velocity Analysis Methods: Offers multiple methods, including Least Squares Matching (LSM), for optimal analysis based on hardware and flow conditions.

Volumetric and Tomographic Particle Tracking
This method provides comprehensive Lagrangian particle history and works with moderate seeding density using two cameras. Adding a third camera allows for tomographic reconstruction and handling higher seeding densities.

Innovative Features
  • Sharp Illumination: Provides even particle illumination with sharp edges.
  • Telecentric Imaging: Offers a wide depth of field and superior volumetric imaging quality.
  • Advanced Particle Detection: Utilizes cutting-edge techniques for particle detection and tracking.
  • 3D Display: Supports stereoscopic vision systems for interactive result visualization.

Least Squares Matching (LSM)
LSM provides direct velocity gradient tensor calculations without noise-inducing difference schemes. It offers comprehensive fluid mechanics information, operates in the spatial domain for fast processing, and enhances data accuracy with sub-voxel precision.

About Dantec Dynamics
Dantec Dynamics is a leading provider of laser optical measurement systems, offering solutions for optimizing component testing and product development. With offices worldwide, they provide tailored solutions to improve efficiency, safety, and quality of life.
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Catalog excerpts

Volumetric Velocimetry Solutions-1

VOLUMETRIC VELOCIMETRY SOLUTIONS

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Volumetric Velocimetry Solutions-2

Cut through the middle plane of a travelling ring vortex The visualization is the result of a time resolved Volumetric Particle Tracking experiment. Courtesy of Prof. Christoph Brücker, TU Freiberg.

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Volumetric Velocimetry Solutions-3

Our unique Volumetric Velocimetry instrumentation provides the solution you have been waiting for - Truly volumetric and time resolved velocity and velocity gradient tensor measurements. Volumetric Velocimetry Solutions Our Volumetric Velocimetry instrumentation provides the solution you've been waiting for. Its many unique and powerful features enable you to make truly volumetric and time resolved measurements simultaneously. We offer the most advanced solutions on the market that support you throughout the entire process of volumetric velocimetry measurements. Starting with the set-up of a...

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Volumetric Velocimetry Solutions-4

Volumetric and Tomographic Particle Tracking As a fluid dynamicist, your interest extends beyond velocity fields. You want the complete time resolved Lagrangian particle history of your flow - Volumetric and Tomographic Particle Tracking provides this for you. Volumetric and Tomographic Particle Tracking When the acquisition of Lagrangian information is of relevance to your research, our Particle Tracking methods provide the solution. Volumetric Particle Tracking is the entry point into the world of Volumetric Velocimetry. With moderate seeding density, this tracking works with only two cameras...

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Volumetric Velocimetry Solutions-5

A few of the many innovative and unique features are: Illumination - as sharp as a razor Conventional light sheet optics provide a Gaussian intensity distribution with fading intensity toward the edges; thus the measurement volume is not well defined and the particles are unevenly illuminated. Our unique optics provide illumination with sharp edges and an intensity that does not drop off towards the edges. This is accomplished without sacrificing the total energy output by knives or apertures. Telecentric imaging - focal depth as deep as the ocean Particle detection and tracking techniques Volumetric...

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Volumetric Velocimetry Solutions-6

Least Squares Matching Have you ever been disappointed with the large errors in velocity gradients derived from PIV data? Least Squares Matching offers the solution by directly providing the velocity gradient tensor without the need for derivation from the velocity field. Least Squares Matching The limitations of two and three-dimensional cross correlation based PIV are well known. Cross correlation is only sensitive to translational displacement, and velocity gradients must be derived using difference schemes that introduce additional noise. LSM on the other hand, is the next generation method...

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Volumetric Velocimetry Solutions-7

Close-up of velocity field calculated using the the LSM method. No outlier replacement or smoothing was applied. Contours show velocity magnitude. Courtesy of Prof. Christoph Brücker, TU Freiberg.

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Volumetric Velocimetry Solutions-8

About Dantec Dynamics Dantec Dynamics is the leading provider of laser optical measurement systems and sensors. Since 1947 we have provided solutions for customers to optimize their component testing and products. Our large number of customers benefit from our quality solutions within: Fluid Mechanics Thermal Comfort Strain, Stress & Vibration Particle Characterization Non-destructive Testing Combustion Diagnostics Process Control Disatac Tachometers Worldwide representation From our six offices and more than 30 representatives worldwide we approach our customers individually. We examine the...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.