FlowExplorer

FlowExplorer is a range of factory-aligned and calibrated optical probes. A complete FlowExplorer-based LDA system includes an accurate BSA signal processor, an advanced BSA Flow software package, and typically a traversing mechanism.

The FlowExplorer family consists of a range of optical heads with either diode lasers or powerful Diode Pumped Solid State (DPSS) lasers with up to 500 mW laser power per wavelength.

Configurations for measuring all three velocity components are possible.

Key features:

• Calibrated to traceable standards and delivered with a calibration certificate
• Pre-configured for instant results: software is ready to use, and the laser and optics are integrated in one compact unit for point-and-measure capability
• PC/LAN interface for enhanced flexibility and control

A wide range of applications

• Aero- and hydrodynamic optimisation
• Calibration of flow sensors and flow meters
• Undergraduate fluid mechanics experiments
• Determining boundary conditions for CFD codes
• In-situ measurements in airplanes, cars, ships etc.

FlowExplorer Accessories

FlowExplorer optics can be adapted to a variety of applications with a range of accessories

• Center Beam Module for measurements close to solid surfaces
• Step ring for 112 mm diameter front lenses and for 41X2xx series beam expanders for  working distances from 800 mm to 2.5 m
• Motorized Beam Spacer for software-controlled beam spacing
• Adapter for FiberFlow probe, to use FlowExplorer DPSS as the light source for a fiber-optical system

Center Beam Module for boundary layer measurements

For 2D measurements near a horizontal surface, a Center Beam Module brings the lower beam of the vertical beam pair to the center of the front lens, avoiding the need to tilt the FlowExplorer optics.

Step ring for 112 mm diameter optics

The Step Ring opens the possibility to use a wide range of front lenses and beam expanders from the FiberFlow series of optics.

Lenses with focal lengths from 240 mm to 1000 mm are available.

Beam Expanders with expansion ratio 1.5 and focal lengths from 800 mm to 2500 mm give access to measurements with long stand-off distances.

Motorized Beam Spacer

Beam spacing directly determines fringe spacing, which in turn affects the phase–diameter and the Doppler frequency-velocity relationship. Software control allows optimization for small droplets (large beam spacing gives small fringe spacing) or large droplets (small beam spacing gives large fringe spacing). It makes it possible to switch size (and velocity) range from software without any realignment.

Adapter for FiberFlow probe

Turn your FlowExplorer LDA optics into a fiber-optical solution by adding an adapter and get the benefits of FiberFlow probes, from 14 mm to 112 mm diameter.