Hi there!
I’m building a quadcopter with APM 2.6 right now, just for fun. Today I asked myself, if it was possible, to use the copter to measure mid altitude winds, which I need for another project.
What I want in the end: I’d like to have the direction of the winds in different altitudes, let’s say in 50m steps. The direction needs do be accurate on about 10°, the speed isn’t that important on absolute numbers, but a relative value compared to the other altitudes would be interesting.
How I think it could be done: I mount a airspeed sensor to the copter, but do not connect it to the APM. I would design a seperate logger, which only loggs the winds.
So the drone climbs in auto mode, while staying on the same spot, to 50m. There, it turns to north (0°) and, via a camera shutter command, tells the logger to measure. The logger stores the first value. Then, it turns 10° to the right, same procedure, and so on, until it is finished. Then, it climbs another 50m, and so on.
My concerns: How will the accuracy of the measurement be? Will it be possible to program such a sequence in Mission Planner? (climb, turn, shoot, turn, shoot…)
Thanks for you thougths!