Dimensional Measurement Enters New Era.

The article presents information on technology which integrates computer tomography (CT) with multisensor coordinate metrology for accurate and complete nondestructive part measurement. The promising new technology also will expand industrial tomography applications from material inspection to accurate dimensional metrology, according to Ralf Christoph, president of Werth Messtechnik GmbH which has developed the technology. Industrial CT involves the capture, processing and reconstruction of a 3-D workpiece from multiple views to create an image of internal and external geometry. Applications include visualization of the quality of internal elements of electronic devices and the quantified 3-D measurement of porosity in advanced castings.