Particulate Matter Monitoring System for Wildfires - #3: Circuitry and Assembly

RE: Particulate Matter Monitoring System for Wildfires - #3: Circuitry and Assembly

scottiebabe — Sun, 23 Jan 2022 15:10:21 GMT

Congrats on putting together such a comprehensive sensor package. Excited to see your campfire science! [emoticon:d3f592d49e434d7fb67e973881d4c367]

RE: Particulate Matter Monitoring System for Wildfires - #3: Circuitry and Assembly

beacon_dave — Sun, 23 Jan 2022 14:34:32 GMT

Spotted this which may be of interest given the hot topic of prop wash on your sensor readings.

Wildfire Meteorology: Drones Provide a Better, Cheaper Way to Understand Fire Risk
https://dronelife.com/2020/11/11/wildfire-meteorology-drones-provide-a-better-cheaper-way-to-understand-fire-risk/

"...The solution was to install a carbon-fiber boom, which positioned the sensor at a distance of about two times the propeller width away from the body of the UAV, to eliminate some of the influences of the prop wash..."

Also mentioned is the issue of extreme updraft from the fire front on small drones, but I guess you weren't planning on getting that close.

RE: Particulate Matter Monitoring System for Wildfires - #3: Circuitry and Assembly

DAB — Sat, 22 Jan 2022 19:06:12 GMT

Nice update, I think you will have to make a suspension system to drop the sampling box below the prop wash. The air mixing will distort the particulates and temperature.

RE: Particulate Matter Monitoring System for Wildfires - #3: Circuitry and Assembly

ralphjy — Sat, 22 Jan 2022 17:46:58 GMT

It will be interesting to see how much the prop wash from the drone interferes with the PM sensor and temp sensor.