초록 ▼

A method and apparatus for optically determining the dimension of part surfaces. Particular embodiments describe optical triangulation based coordinate measurement machines capable of accurate measurement of complex surfaces, such as gear teeth and turbine blades. Other embodiments provide highly us

A method and apparatus for optically determining the dimension of part surfaces. Particular embodiments describe optical triangulation based coordinate measurement machines capable of accurate measurement of complex surfaces, such as gear teeth and turbine blades. Other embodiments provide highly useful sensors for robot guidance and related purposes. Up to 5 axis sensing capability is provided on surfaces of widely varying form.

대표청구항 ▼

A method for determining the dimension, location or attitude of an object surface, comprising projecting a zone of light onto the surface of said object, said zone comprising at least two bright portions with at least one dark portion therebetween, forming an image of said zone on said surface onto

A method for determining the dimension, location or attitude of an object surface, comprising projecting a zone of light onto the surface of said object, said zone comprising at least two bright portions with at least one dark portion therebetween, forming an image of said zone on said surface onto a photodiode array with lens means whose axis is angularly spaced from the axis of said projected light, said image comprising said two bright portions and said dark portion therebetween; determining from the position of the dark portion of said image on said array relative to said lens axis the location of said surface illuminated by said zone, and determining from said location of said surface the location, attitude or dimension of said object.