OSi’s Optical Wind and Vortex sensor (OWV) is a breakthrough in measuring turbulence, large body air / wind movement over a long path (50 to 300 meters or more) – all in a single, low cost sensor. The sensor operates on atmosphere turbulence induced optical scintillation. All the electronics are housed in the OWV with a folded path being established by placing a corner cube reflector down-range at the desired distance.

The OWV uses our long-proven Digital Signal Processor (DSP) engine, which is at the core of every OSi optical sensor. The technology behind it was derived from our renowned Long- baseline
Optical Anemometer (LOA-005TM) which was developed to measure cross-wind and turbulence over paths up to 10km or longer.

The OWV uses a corner cube reflector to “fold” the path, this has significant advantages over a double ended technology: it offers more than twice the signal to noise ratio, reduces siting to a single installation, and eliminates pointing and alignment issues.

As a further benefit, the OWV can also be configured for use at airports as a wake vortex detection system. This has been extensively field tested in this application as part of NASA’s Airspace Systems Program. This makes the OWV an incredibly versatile sensor that can be applied to many different applications in environments as diverse as airports, petrochemical plants (for fence-line monitoring) and across rivers and inlets.

Communications are simple. The user can choose between two basic serial communications protocols: RS-232 or RS-485. The user can connect directly or through network via Ethernet.

No other sensor can provide so much capability for a fraction of the cost. The OWV delivers much more, with adaptability to a very wide range of applications.

Contact our sales office to learn more about the OWV and possible applications. We can provide anything from a single sensor for integration into your own system – to a complete system with multiple sensors, analysis software, and graphical display stations. A host of applications await your imagination and our capabilities!



  • Provides 1D / 2D or 3D wind movement data as well as turbulence (Cₙ²) strength, option for CT²
  • Can be used in Wake Vortex detection systems
  • Long-term reliability: operates unattended 24/7/365
  • Low maintenance
  • Rugged, all-weather design: designed for harsh conditions
  • Easy installation
  • Self diagnostics & Testing: continuously monitors performance & informs user of trouble

Performance Specification

Path Averaged Cross Winds

N/A 0.1 m/s to 60 m/s

Principle of operation

N/A Optical scintillation (dual channel for wind)

Heat flux / CT² Option

N/A With optional Temperature / Pressure sensors

Cₙ² Turbulence Range

N/A 1.0 x10-18 to 9.99 x10-10 m-2/3

Electronic Specification

Power Requirements

N/A Factory selectable, 100/115/220/230 VAC, 50/60 Hz @ 50 VA 10-24 VDC optional, 50 VA nominal

Signal Output

N/A RS-232 / RS 485 ASCII, Ethernet option

Transient Protection

N/A All power & signal cables protected

Environmental Specification


N/A -40° to 122° F (-40° to 50° C)


N/A Humidity 0-100%

Precipitation / Dust

N/A NEMA 4 type protection

Physical Specification

Optical Transceiver Head Size

N/A 20 x 7 x 10 inches

Optical Transceiver Head Weight

N/A 10 lbs.

Retro-reflector Housing Size

N/A 8 x 8 x 10 inches

Retro-reflector Housing Weight

N/A 5 lbs.

Optical Path Length

N/A Single cube reflector: 50-150m; multi-cube reflector: to 300m