192 Simultaneous Channels Track Windtunnel Data

Most wind tunnels use moderate numbers of instrumentation channels together with video camera monitoring, but for the specific case of measuring turbulence, the users deploy a model with an array of pressure sensors and in order to track the evolution of the turbulence across a surface it's necessary to sample the sensors all at the same time (aka simultaneously) at high kHz rates to get an accurate snapshot of the state of the airflow over the surface at each point in time.

Glasgow University operates two wind tunnels for aerodynamic testing. For their GoAhead project D-TACQ supplied digitizers with 192 simultaneous channels in a 1U box. Together with Glasgow University staff they developed custom signal conditioning to match their sensor array to the digitizers.

The combined system is an easy hand-carry, fits in 4U shelf space, replacing 2 x 40U fork lift truck loads. The system also has 4x higher resolution, 10x higher sample rate, supports 10x longer captures and allows faster upload by Ethernet. The D-TACQ ACQ196 digitizer provides the maximum number of simultaneous channels with a system-on-a-card architecture and in a CAD model of the GoAhead helicopter, Glasgow University staff developed a user interface to show changing pressure points on the model.

D-TACQ's solutions delivered

- Higher performance

- Much smaller size - portable

- Faster upload

- Easy integration via Ethernet and standard networking protocols.

Put D-TACQ's expertise to work on your data acquisition challenges .

To learn more about simultaneous channel system on a card architecture contact D-TACQ via the links here