Question

How many detector elements are present in a matrix array solid state camera?

(a) 156 x 156 per array

(b) 216 x 216 per array

(c) 116 x 116 per array

(d) 256 x 256 per array

The question was asked during an interview.

My question is from Principle of Working in section Machine Vision Systems of Engineering Metrology

Answer 1

Correct choice is (d) 256 x 256 per array

To explain I would say: A typical matrix array solid state cameras have 256 x 256 detector elements per array. Solid state cameras are small and rugged. Sensors of solid state cameras are do not wear out with use. There is very less image distortion in solid state cameras because of placement of photo detectors accurately.