Automotive Development and Progress in HORIBA's Emission Measurement Technologies

The progress in HORIBA's emissions measurement systems has been closely connected to trends in vehicle
development. Innovations in automotive technology, stemming from emission regulations and implementation
of computer control systems, have especially had great infl uence on analytical technologies. With the advent
of emission regulations, HORIBA developed its first automotive emission analyzer, MEXA-1 and constant
volume sampler (CVS), in 1964. Ever since, HORIBA has constantly enhanced its devices to accommodate
the most recent requirements, such as increased precision to match stricter emission regulations and
advanced automation for improved effi ciency of increasingly complex testing. The current model, MEXA-7000
Version 3, built on over forty years of emission analyzer development enables emission analysis of the latest

Super Ultra Low Emission Vehicles (SULEV).