thezaxis writes: I am looking for a technology or some ideas on how to go about determining (electronically) where a weighted tennis ball hits a 2 dimensional target (wall for arguments sake). The position would need to be determined within a diameter of about 50 to 100mm. This should ideally be via optical, laser or similar method rather than electromechanical sensors to eliminate wear or damage from continuous impact of the balls. The entire target area would typically be in the order of 5m x 5m.
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