Patent ID: 6049386
Filing Date: 2000-04-11
Classification: G01B

Abstract:
An apparatus for measuring a length and a width of a linearly-moving cuboidal object traveling at a determinable rate along a path, comprising:beam emitters for projecting first, second, third, fourth, fifth and sixth light beams across said path of said object so as to be interrupted by passage of said object therethrough, at least one of said first, second, third, fourth, fifth, and sixth beam emitters being oriented to project a light beam in a non-perpendicular relationship to said path of said object;at least one timing device for determining first, second, third, fourth, fifth and sixth times during which each of said respective first, second, third, fourth, fifth and sixth light beams is interrupted by the passage of said object therethrough;a speed sensing mechanism for determining a magnitude of said rate; anda processor for calculating said length and said width of said object using determined first, second, third, fourth, fifth and sixth times and a determined magnitude of said rate.