Manchester researchers create two-color molecule for wind tunnel pressure tests
Chemists and aerospace engineers at The University of Manchester have designed a new molecule that emits two colors to measure air pressure and temperature simultaneously in wind tunnels.
New molecule measures two properties
Most sensors can only measure one thing at a time, such as a thermometer for temperature or a gauge for pressure. The new molecule emits two distinct colors of light at once to address this limitation. One signal responds to both air pressure and temperature while the other responds only to temperature.
Corrected readings from single source
By comparing these two signals, engineers can get a corrected pressure reading from the molecule itself. This method removes the need for a separate temperature sensor alongside a pressure sensor. The result is less cost and complexity in the testing process.
Application in specialized paints
The molecule serves as an active ingredient in specialized paints used to measure pressure on aircraft models. These paints glow in proportion to the air pressure pushing against them during tests. This technology addresses a major challenge in the aerospace industry regarding accurate surface measurements.
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