Optical measurement refers to noncontact measurement using various light sources. It usually requires at least one lens, a light source and a detector. It differs from other forms of inspection in that instead of using a tactile measurement method like a touch probe, it uses either a point of reference (e.g. a crosshair) or a computer to calculate edge detection. Two of its greatest benefits are its capability to measure features too small or fragile to measure by touch, and the fact that it is faster in comparison to other forms of measurement.
The medical, plastics, aerospace and automotive industries are where optical measurement has, and will continue to have, significant impact. But, in reality, this form of noncontact detection applies to applications across most verticals and sectors. Adopters of modern optical measurement devices are looking for easy-to-use technology that supports the acquisition of more accurate data in less time. As a result, there’s a rising demand for in-line measurement and faster processing of acquired images as well as image stitching capability and larger fields of view. There’s also a growing demand for innovative components like liquid lenses. But when deciding which—if any—optical measurement devices are right for you, all factors must be considered.