Measurement Science and Technology (Popularity: )
http://www.iop.org/EJ/MST Scientific research journal specialising in all aspects on measurement science and related technology in physics, chemistry, engineering and the life sciences. Published by Institute of Physics Publishing.
Metrologia (Popularity: )
http://www.bipm.fr/metrologia/ An international journal dealing with the scientific aspects of measurement. Published by Bureau International des Poids et Mesures.