Dr Charles (Chuck) Ehrlich is a Supervisory Physicist in the Office of Weights and Measures (OWM) of the Physical Measurement Laboratory (PML) at the National Institute of Standards and Technology (NIST).
During his 30+ year tenure at the National Bureau of Standards (NBS)/NIST, Dr Ehrlich has played a key role in developing the nation's first Leak Calibration Service, served for seven years as Group Leader of the NIST Pressure Group, served two years in the NIST Program Office, and for the past 16 years has been the U.S. Representative (on behalf of the U.S. State Department) to the International Organization of Legal Metrology (OIML).
Chuck is very active in the domestic and international metrology and legal metrology communities. He is a long-time member of both Working Groups of the Joint Committee for Guides in Metrology (JCGM): Working Group 1 on the Expression of Uncertainty in Measurement (GUM) and Working Group 2 on the International Vocabulary of Basic and General Terms in Metrology (VIM). He has served for the past eight years as Chairman of Working Group 2.
Prior to joining NBS/NIST, Chuck spent five years in the semiconductor capital equipment industry (Varian Associates) in both R&D and management, designing and testing ion implantation equipment.
Chuck holds a Ph.D. in Solid State Surface Physics (Field Ion and Field Emission Spectroscopy) from the University of Pennsylvania.