i-LDA - Micro Laser Doppler velocimeter with ultra low focal length

Product catalog summary

Overview: The document describes the ILDA ultra-low focal length micro-Laser Doppler velocimeter (µ-LDV) designed for measuring velocity and wall shear stress in liquids, gases, and micro-particles. It is an auto-calibrated, non-intrusive sensor requiring no optical adjustments, suitable for hydro-aerodynamic and micro-fluidic applications.

Technical Specifications:

Optical Source: Laser at 830 nm.
Measuring Volume: Focal length ranges from 0 to 500 μm, with fringe spacing between 1 and 3 μm. Dimensions vary with the X-axis at 20 μm, Y-axis between 40 and 120 μm, and Z-axis between 17 and 40 μm.
Number of Fringes: Between 7 and 20.
Velocity Measurement: Maximum measurable velocity ranges from 10 to 100 m/s.
Detection Mode: Backward scattering integrated into the probe.
Particle Detection: Minimum detectable particle diameter is 500 nm.
Packaging: Standard packaging in inoxidizable steel tube with a diameter of 10 mm and length of 60 mm.
Electronic System: Laser and detector interconnected by optical fibers.

Probe Mounting Options:

Mounted into the inner wall for a non-intrusive contact zone (recommended).
External mounting with measurements through a thin window.
Placement into the measurement environment for endoscopic applications.

Product Offerings:

Standard Products
Custom Products
Custom Designs & Services including product customization, environment-specific packaging, new product development, training, onsite data acquisition, and shared data analysis.

For more information, visit the A2 Photonic Sensors website at www.A2PhotonicSensors.com.

Catalog excerpts

i-LDA - Micro Laser Doppler velocimeter with ultra low focal length-1

ILDA Ultra-low focal length micro-Laser Doppler velocimeter (f: 0-500 μm). Velocity and wall shear stress measurements for liquids, gas and micro-particles. Auto-calibrated, non intrusive sensor, no optical adjustments needed. Sensor dedicated to hydro-aerodynamic and micro-fluidic applications.

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i-LDA - Micro Laser Doppler velocimeter with ultra low focal length-2

Working principle µ-LDV Laser + Photodetector Wall shear stress Technical specifications Technical specifications • Optical source: laser @ 830 nm • Measuring volume (ranges): • Focal length: 0 ≤ f ≤ 500 µm (other focal length: please contact us) • Fringe spacing: 1 ≤ If ≤ 3 µm • Measuring volume dimensions(*): • X-axis: dxtyp = 20 µm • Y-axis: 40 ≤ dy ≤ 120 µm Z-axis: 17 ≤ dz ≤ 40 µm • • Number of fringes: 7 ≤ Nb_f ≤ 20 • Maximum measurable velocity*: 10 ≤ U ≤ 100 m/s • Detection mode: Backward scattering, integrated to the probe • Minimum detectable particle diameter: 500 nm • Standard packaging:...

Open the catalog to page 2

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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.

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