I’m working on a project where I need to measure the distance of a ball that passes past a sensor.
The problem is that the ball is small (3 cm in diameter) and it moves at a relative high speed (lets say 5 m/s).
So I need a measurement rate of at least 150Hz.
The sensor needs a range of 60 cm.
I already thought of the following:
- Ultrasonic sensors are not possible, because they are too slow.
- Most IR distance sensors (the cheap ones) have only a measurement rate of about 20Hz.
- For example this IR sensor: http://www.seeedstudio.com/wiki/index.php?title=Twig_-_80cm_Infrared_Proximity_Sensor_v0.9 claims to be ‘continuous’.
Is this true? And if so, can I connect it to the Arduino Uno R3 and get my readings at 150Hz?
I really hope you can help me with this.