Friday, July 11, 2014

Sharp App Note Discusses Triangulation Distance Sensor Issues

Sharp publishes an application note on its active triangulation-based depth sensors series GP2Y0D8x. The principle of the sensor is shown on the figure:

It works fine in most of the cases, and allows even a simplistic movement detection. However, in some use cases the distance is determined incorrectly (sensor thinks that the object located at position C):

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