Skip to main content
Skip to article control options
No Access

Development of a Simple Compact Photodiode Array for Use with Linear Array-FLDI

AIAA 2023-1563
Session: Vehicle and Sensor Simulations
Published Online:https://doi.org/10.2514/6.2023-1563
Abstract:

View Video Presentation: https://doi.org/10.2514/6.2023-1563.vid

This work presents a simplified and cost-effective modification for the signal sampling configuration used by previously described linear array focus laser differential interferometers (LA-FLDI). In this configuration, the photodiodes used previously are decoupled from their amplifier boards allowing for a compact sensor arrangement that eliminates the need for fiber optic transport of the individual signals. In this work, the frequency response of the updated photodiode configuration measured are compared against the previous configuration. LA-FLDI measurements will also be carried out with the new array on a flared cone model boundary layer of a Mach 6 blowdown tunnel. These results are compared with expected values and with data collected previously in the same facility.