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wind_sensor:meeting_minutes_jan_27_2017 [2017/02/01 22:20] mwu [Ultrasonic Wind Sensor] |
wind_sensor:meeting_minutes_jan_27_2017 [2021/09/19 21:59] (current) |
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| =====Acoustic Wind Sensor===== | =====Acoustic Wind Sensor===== | ||
| * Updates: | * Updates: | ||
| + | * Developed an algorithm for real time processing | ||
| + | * Algorithm will calculate the moving average of the filter | ||
| * To Do: | * To Do: | ||
| + | * Fix usb connection error | ||
| =====Ultrasonic Wind Sensor===== | =====Ultrasonic Wind Sensor===== | ||
| * Updates: | * Updates: | ||
| * Continued researching methods of determining propagation time | * Continued researching methods of determining propagation time | ||
| - | * One method is to keep track of the start time (signal sent) and the end time (signal received) via a combination of sampling and thresholding | + | * One method is to keep track of the start time (signal sent) and the end time (signal received) |
| * Because we don't have a transducer yet to keep track of the start, we will improvise with using two receivers and a source further away, the propagation time being the time between the receivers | * Because we don't have a transducer yet to keep track of the start, we will improvise with using two receivers and a source further away, the propagation time being the time between the receivers | ||
| * Started developing an algorithm and circuit to accomplish above | * Started developing an algorithm and circuit to accomplish above | ||
| + | * The algorithm will use a combination of thresholding and phase shift detection to determine precisely the time | ||
| * Need a Schmitt trigger for counting the wavelength number | * Need a Schmitt trigger for counting the wavelength number | ||
| * Found a Schmitt trigger on DigiKey | * Found a Schmitt trigger on DigiKey | ||