High‐speed cameras and laser Doppler vibrometers

Purpose – To present two non‐contact methods of measuring vibrations and impact events.Design/methodology/approach – The paper concentrates on the practical capabilities and underlying technology of commercial high‐speed CMOS cameras and laser Doppler vibrometers.Findings – The instruments are used to analyse modes of failure and to test quality in a very wide range of products. They are also used to develop safety and protective devices, and to study natural phenomena.Originality/value – A practical guide to the tools available, with some example applications of interest to production engineers.