Author | Comment | Last activity | Moderation | ||
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cfastie | "Hi tahnok, Those inexpensive anemometers seems to be missing an important feature of the expensive Kestrel and other fancy anemometers. They do no..." | Read more » | over 5 years ago | |||
cfastie | "Thanks Zengirl. I don't think you can buy a NASA Aeropod. You can license the technology from NASA and manufacture them, but I don't know if anyone..." | Read more » | about 7 years ago | |||
cfastie | "A goat is way better than brown M&Ms. But that is not exactly my motivation here because I'm sure everybody reads my research notes extremely ..." | Read more » | about 7 years ago | |||
cfastie | "It would be fun to try an Aeropod. I couldn't find any details about the instruments, but it looks like an awesome contraption to fly. " | Read more » | over 7 years ago | |||
cfastie | "A pitot tube measures air pressure and uses fancy math to relate that to wind speed. I assume the ones on airplanes work better than the Rev P. " | Read more » | over 7 years ago | |||
cfastie | "I decided not to drop into the rabbit hole of applying time series analysis to these data. There does appear to be some periodicity present, but I ..." | Read more » | over 7 years ago | |||
cfastie | "I have a hypothesis about the different results obtained with two BME280 sensors on the flying rig. A difference of 3° to 4°C is more than should b..." | Read more » | over 7 years ago | |||
cfastie | "Yes, the newer Rev. P sensor works better in high wind because it has a strong heater so the wind can't cool it off too fast. But the older Rev C s..." | Read more » | over 7 years ago | |||
cfastie | "A running mean of the aerial wind speed looks like a very reasonable result. The red line is a running mean of 10 observations (which were six seco..." | Read more » | over 7 years ago | |||
cfastie | "Thanks guys. I started the SkyPod wiki. I'm never sure what constitutes an Activity, but maybe there will be some obvious ones eventually. " | Read more » | over 7 years ago | |||
cfastie | "Update: The u-blox NEO-7M board can be powered with either 3.3 or 5 volts. The GPS module itself is not tolerant of more than 3.6 v, but the board ..." | Read more » | over 7 years ago | |||
cfastie | "I guess I demonstrated that the u-blox is protected someway or another from voltage over the stated 3.6v max. I was using four eneloop AAA (4 x 1.2..." | Read more » | over 7 years ago |