Angle metrology – Bryon Faust, National Institute of Standards and Technology (NIST)
The virtual tutorial will introduce and cover high accuracy measurements using an autocollimator with a goal of disseminating knowledge through work experience gained at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. Many of the common angular artifacts sent into NIST for calibration will be covered in a case study format. Pictures of artifacts, calibration set-ups, tips and tricks and tools of the trade for angle measurement including closure and reversal measurement techniques employed, and the ever-popular uncertainty examples for each artifact. Interesting special angle artifacts that have also been measured at NIST but aren’t that common in use throughout industry will also be covered. A question and answer session is planned at the end.
Bryon Faust, National Institute of Standards and Technology (NIST)
Bryon Faust is a Mechanical Engineer at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. He began his NIST employment in 1988 as a summer student. He is a graduate of the University of Maryland Baltimore County (UMBC) with a BSE in 1993. He began working at the [then] National Bureau of Standards (NBS) measuring American Petroleum Institute (API) thread gauges. Bryon has experience in measuring gauge block length by mechanical comparison to master gauge blocks and primary length interferometry, sphere diameter and since 1996, angle artifacts. Beyond angle measurement, he is involved in developing a dilatometer for measurement of a material’s coefficient of thermal expansion (CTE) and upgrading the existing optical flat measurement process from a diameter line or crossed diameter lines to full surface measurement.