Hello all and thanks for any help and direction.
I have a cannon that shoots bowling balls. We have either paced out, used a range finder or satellite imagery to estimate average shot distances of 500-1000 yards depending on powder load. Most shots are made from a fourty-five degree angle. I would like to be able to have a recorded altitude of the ball. There is a forward directional rotation of the ball. As the ball spins the finger holes cut the air to make a whistling sound. Since the ball is spinning you can notice a volume difference in the whistle depending on which direction the finger holes are pointing at any given point in the spin. Using this as a very rough estimate I would say that the ball rotates at around 300/RPM. Surprisingly slower than I would assume, only a few revolutions per second.
I have made quite a few arduino based projects. It recently dawned on me to use arduino based sensors to measure data from the cannon.
My plan is to drill a hole in the ball to receive the arduino/sensors.
I figure Rocketeers are the authorities on this subject.
So my questions:
-Does anyone know of a fast/reliable altimeter that is arduino compatable?
-Will the rotation of the cannon ball affect the altimeter?
-How sealed/unsealed can the altimeter be to be accurate? Does it need ~airflow to detect changes in altitude?
-What are some some other questions I should be asking?
Thanks again all, I really do appreciate any direction, insight and ideas.
I have a cannon that shoots bowling balls. We have either paced out, used a range finder or satellite imagery to estimate average shot distances of 500-1000 yards depending on powder load. Most shots are made from a fourty-five degree angle. I would like to be able to have a recorded altitude of the ball. There is a forward directional rotation of the ball. As the ball spins the finger holes cut the air to make a whistling sound. Since the ball is spinning you can notice a volume difference in the whistle depending on which direction the finger holes are pointing at any given point in the spin. Using this as a very rough estimate I would say that the ball rotates at around 300/RPM. Surprisingly slower than I would assume, only a few revolutions per second.
I have made quite a few arduino based projects. It recently dawned on me to use arduino based sensors to measure data from the cannon.
My plan is to drill a hole in the ball to receive the arduino/sensors.
I figure Rocketeers are the authorities on this subject.
So my questions:
-Does anyone know of a fast/reliable altimeter that is arduino compatable?
-Will the rotation of the cannon ball affect the altimeter?
-How sealed/unsealed can the altimeter be to be accurate? Does it need ~airflow to detect changes in altitude?
-What are some some other questions I should be asking?
Thanks again all, I really do appreciate any direction, insight and ideas.