Coming soon: Track Sonic ball tracking
How it works
The track sonic system consists of 4 or more digitally interfaced microphones placed behind the impact screen.
The mics are used to measure the sound level of a ball striking the screen, these sound levels are then compared to determine the impact point on the screen.
e.g. if 4 mics are placed in the four corners of the screen and the ball hits the exact center of the screen, then all impact sound levels will be the same.
If the ball impacts the screen higher or lower than the center, then there will be a measurable difference in sound intensity between the two mics at the top of the screen and the two at the bottom.
Likewise, if the ball is hit either left or right of the center of the screen, then there will be a measurable difference in sound intensity between the two mics on the left of the screen and the two on the right.
The software calculates an average sound level of each mic and then compares them to determine the impact point on the screen.
This impact point together with the known launch position of the ball is then used to calculate the ball launch angle and the ball path.
Ball speed is determined by a fifth mic that captures the club / ball impact sound which is either embedded in the hitting mat or placed near the ball on the tee.
The time difference between the club / ball impact and the ball striking the screen is then used with the distance the ball traveled to determine the speed of the ball (i.e. speed = distance/time).
The above image shows the output of the GSA Golf's 16 channel ADC (Analog Digital Converter) in the Control Panel's ADC window after a shot.
Each mic is connected to this ADC which allows up to 16 mics to be simultaneously monitored.
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