Prof. Dr. Ir. Paul Regtien received the M.Sc. degree in 1970 and the Ph.D. degree in 1981, both from the Delft University of Technology, The Netherlands. From 1995 to 2010 he was full professor in Measurement and Instrumentation at the University of Twente, The Netherlands. In this function he has published numerous articles on sensors and instrumentation. In 2006 he established his company Measurement Science Technology, The Netherlands. He has served many years the international measurement community as, among others, Board Member of the IOP journal Measurement Science and Technology and Vice President for Publications of IMEKO (International Measurement Confederation) and member of the advisory board for the Dutch Metrology Institute. In 2011 he started with the online e-journal Acta IMEKO and acted till the end of 2017 as Chief Editor of this journal.