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wind_sensor:meeting_minutes_apr_28_2017 [2017/04/30 11:33] mwu [Ultrasonic Wind Sensor] |
wind_sensor:meeting_minutes_apr_28_2017 [2017/04/30 11:50] mwu [Ultrasonic Wind Sensor] |
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| * To Do: | * To Do: | ||
| * Instead of just using the first set of times to calculate the difference, try use all ten sets to see if the overall average becomes more stable. | * Instead of just using the first set of times to calculate the difference, try use all ten sets to see if the overall average becomes more stable. | ||
| - | * Add in calculation of wind speed into program so it can print out the calculated wind speed directly, and conduct tests with more wind speeds and the other fan | + | * Add in calculation of wind speed into program so it can print out the calculated wind speed directly, and conduct tests with more wind speeds and the other fan. |
| * Experiment with amplifiers to see if we can increase the SNR (signal-to-noise ratio). This should give us better results. Also, see if we can utilize use the Schmitt trigger's two threshold levels to have one act as a "qualification" and the other as the actual zero-crossing detector. | * Experiment with amplifiers to see if we can increase the SNR (signal-to-noise ratio). This should give us better results. Also, see if we can utilize use the Schmitt trigger's two threshold levels to have one act as a "qualification" and the other as the actual zero-crossing detector. | ||
| - | * See if we can reduce the ringing of the emitter by sending 180-degree phase shifted pulses after we send our actual pulses (destructive interference) | + | * See if we can reduce the ringing of the emitter by sending 180-degree phase shifted pulses after we send our actual pulses (destructive interference). |