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wind_sensor:meeting_minutes_mar_24_2017 [2017/03/25 02:05] mwu created |
wind_sensor:meeting_minutes_mar_24_2017 [2021/09/19 21:59] |
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- | =====Wind Sensor Team Meeting-March 24, 2017===== | + | |
- | **Attended: Mengyuan, Creighton, Scott** | + | |
- | =====Acoustic Wind Sensor===== | + | |
- | * Updates: | + | |
- | * | + | |
- | * To Do: | + | |
- | * | + | |
- | =====Ultrasonic Wind Sensor===== | + | |
- | * Updates: | + | |
- | * Transferred the filtering algorithm onboard the Teensy, so the results display immediately, without me having to copy the values and run the numbers through Python. | + | |
- | * Using 1k samples, the results were pretty consistent (varies by around 1 microsecond). However, I noticed that the experiment was **very** sensitive to its surroundings. Even moving my hand around (about 2 feet away) was still enough to cause fluctuations in the results. | + | |
- | * The good news is that if I keep my hands still, the results are pretty consistent. | + | |
- | * Constructed a 40kHz square wave using a 555 timer and plan to use that to drive the transducer emitter. | + | |
- | * To Do: | + | |
- | * Gather some data using our current experimental setup. | + | |
- | * Start implementing amplifier with the transducers so the Teensy can control the emitter. | + | |
- | * Look into using high speed ADC found here: https://forum.pjrc.com/threads/25532-ADC-library-update-now-with-support-for-Teensy-3-1. Only use a limited bit precision to try and get the highest speed. | + | |
- | * Look into using thresholding to detect a wave, and then run some ADCs to determine the phase shift afterwards. | + |