EDITOR’S DESK PUBLISHER MICHAEL L. SCHWARTZ EDITOR SITA P. SCHWARTZ CAL LAB
PO Box 111113 Aurora, CO 80042 TEL 303-317-6670 • FAX 303-317-5295 office@callabmag.com www.callabmag.com EDITORIAL ADVISORS CHRISTOPHER L. GRACHANEN NATIONAL INSTRUMENTS MIKE SURACI SURACI CONSULTING SERVICES LEAD ASSESSOR, ANAB MARTIN DE GROOT MARTINDEGROOT CONSULTANCY JESSE MORSE MORSE METROLOGY JERRY ELDRED TESCOM Subscription fees for 1 year (4 issues) $50 for USA, $55 Mexico/Canada, $65 all other countries. Visit www.callabmag.com to subscribe. Printed in the USA. © Copyright 2022 CAL LAB. ISSN No. 1095-4791
Old Is New Well, what is new… NCSLI Technical Exchange started online this month. They had to scrap their original plan of in-person training in Houston, TX, amidst the latest wave of COVID-19. As usual, they have a quality line-up of tutorials on a variety of topics and disciplines: force, proficiency testing, instrumentation primer, internal auditing, temperature… the list goes on. So head over to https://ncsli.org/page/tep for details and registration! A2LA has their Tech Forum (TEFO22) in April at Westfields Marriott in Chantilly, VA. And, MSC Training Symposium is coming up in May at the Hilton in Anaheim, California. Check out the Calendar section for details and more events. There’s plenty of opportunity to learn something new! Speaking of new, we have a new contributor, Dan Wiswell, who will be sharing with us his knowledge of vintage and antique measurement instruments in each issue. Maybe you’ve seen Dan on LinkedIn and followed his unique postings of various wooden-cased Weston meters and other goodies. He can be found with #indaysofold. So, it is no coincidence this issue debuts a new Department called “In Days of Old” with a condensed history of measuring instruments. I think you’ll probably learn something new. For feature articles, we start with an introduction to understanding ISO/IEC 17025, “Overview of the ISO/IEC 17025 Revision Process,” by Diane Baldi and Heather Wade. This introduction is an excerpt from their downloadable e-book, details of which follow the article. Next, Andrew Dawson, of Vitrek, shows how noise is mathematically removed on digitized signals in “ENOB: The Best Digitizer Performance Metric.” These techniques can be applied to other digital measurement related issues. And finally, we found an interesting article by Peter de Groot with Zygo Corporation, on “Additive Manufacturing: New Frontiers for Production & Validation.” Metrology is present in every form of engineering, which often requires novel methods of measurement for the production of critical applications. I hope you enjoy this first issue of the New Year! Happy Measuring, Sita Schwartz
Jan • Feb • Mar 2022
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Cal Lab: The International Journal of Metrology
