UAV inlet Model ACC-UAV-Inlet


An easy-to-install isokinetic inlet system for medium-sized and large UAV’s that automatically adjusts the main inlet flow for changes in platform speed. Sampling particles from moving platforms can be tough – especially larger coarse-mode aerosol that are easily lost inside inlets due to turbulent deposition. The UAV Inlet System has been designed using our wind tunnel facility to minimize particle losses in sampling applications where compact size and performance are required. A built-in water trap system prevents water from entering the instrument sample lines. Multiple instrument sample flow pick-offs are possible using flow splitters to adapt to your sampling needs. Easy-to-use particle sample flow dryers are also available. Brechtel has decades of aircraft sampling and isokinetic inlet development expertise to help with your application.

Learn About Product

All Features
  • Fully automated, hands-off operation
  • Transmission efficiency > 90% for particle aerodynamic diameters < 3 microns
  • Custom inlet manifold design for each application including sample pickoffs and drying (optional)
  • Custom mounting solutions that account for UAV angle of attack (optional)
  • Single diffuser prevents turbulent boundary layer separation
  • Passive pumping reduces power needs
  • Anti-water ingress chamber
  • 20 lpm sample flow for 34 mph (15 m/sec) airspeeds
  • Scarf tube vacuum assembly for main inlet flow and instrument exhausts
  • Interconnect tubing and fittings
  • Passive pumping via scarf tube reduces necessary pumping power
  • Small, light and easy to integrate
  • Easily adaptable to different UAV’s and mobile platforms
  • Automatically maintains isokinetic flow using passive scarf tube pumping
Technical Specs

Copyright ©2024 All specifications are subject to change without notice. BMI assumes no responsibility for inaccuracies in this document or for any obligation to update information in this document. BMI reserves the right to change, modify, transfer or otherwise revise this publication without prior notice.

*Some products may be shown with optional accessories, which are sold separately. Items shown may not be to scale.

Applications and Solutions
  • Plume studies of power plants
  • Megacity plume studies
  • Volcanic ash studies
  • Below cloud aerosol studies for cloud condensation nucleus research
  • Visibility reduction studies
  • Climate change research
  • Vertical profiling of aerosols
  • Air quality research
  • Mobile laboratories

No software is required

What's Included
  • UAV external sampling probe inlet assembly with standard mounting plate
  • Water rejection chamber
  • Scarf tube vacuum assembly with mounting flange
  • Interconnect tubing

Note: It is the customer’s responsibility to physically mount the inlet to their UAV or other platform.


The following optional accessories are available:

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