METHOD AND APPARATUS FOR SELECTIVELY INJECTING POULTRY EGGS

摘要

A method for distinguishing live from dead poultry eggs comprises: (a) providing a light source (11) preferably an infrared light source, and a light detector (21) in opposite facing relation to one another (b) passing an egg between the light source (11) and light detector (21); (c) switching the light source (11) at a frequency greater than 100 cycles per second while passing the egg between the light source and the light detector; and (d) detecting light that passes through the egg from the light source with the light detector.