All Features
Megan Wallin-Kerth
As the July 22–25, 2024, Coordinate Metrology Society Conference (CMSC) rapidly approaches, quality professionals anticipate opportunities to explore and showcase various products and ideas from some of the biggest names and organizations. InnovMetric, Hexagon, Renishaw, Nikon, and many others will…
Adam Zewe
(MIT: Cambridge, MA) -- Before a robot can grab dishes off a shelf to set the table, it must ensure its gripper and arm won’t crash into anything and potentially shatter the fine china. As part of its motion planning process, a robot typically runs “safety check” algorithms that verify its…
Etienne Nichols
In a highly regulated industry like medical technology, manufacturing processes must undergo either process verification or process validation to ensure they’re consistently producing the correct result. The question is, which one should you use?
Verification and validation are two different…
Atul Minocha
Do you ever feel like you’re spending money like crazy on marketing and getting little or nothing in return? If so, you might be tempted to pull the plug on marketing altogether. That would be a big mistake.
An effective marketing strategy can mean the difference between your organization’s success…
David H. Parker
It is well known that the speed of light depends on the index of refraction of the medium in which the light is propagating. It is also well known that in a dispersive medium, the speed of an amplitude modulated wavefront depends on the group refractive index, i.e., slightly slower than the carrier…
The Daniel K. Inouye Solar Telescope (DKIST) is strategically constructed on the summit of Haleakala, 10,023 ft above sea level, which is an ideal vantage point for solar observations. Site construction started in 2012 and moved into the integration, testing, and commissioning (IT&C) phase…
Fringe projection techniques offer fast, noncontact measurements of the surface form of manufactured parts. Fringe projection has seen successful implementation in the automotive, aerospace, and medical industries. Recently, advances in fringe projection have reduced the sensitivity of the…
Calibrating an absolute distance meter (ADM) laser tracker requires long linear distances. For such distances, the room temperature is a significant factor. Even though the calibration room’s temperature is controlled within ± 2° C, actual temperature and temperature variation in one end of the…
David H. Parker
A 154-page report by Moreu and LaFave in 2012 explains unique problems railroad bridge engineers must contend with. The gross weight of cars went from 200,000 pounds to 263,000 pounds in the 1970s, and to 286,000 pounds in 1991. The ratio of live to dead loads are much greater for railroads than…
Mike Richman
An industry, and even more so any individual company, is only as strong as its pipeline of incoming talent. This week on QDL we looked at this topic from a few different angles. Here’s what we covered at greater length:
“Ripped From the Headlines: Worker Shortage” A recent article on the Bloomberg…
Modern super-precision turning centers must provide accuracy in the lower range of diamond-turning machines (cylindricity of less than 1–2 μm) and high productivity. Traditionally, diamond-turning machines have not been able to provide this because of their design limitations. However, high…
NIST
A convocation of delegates representing 60 countries voted last month in Versailles, France, to implement the most significant change to the International System of Units (SI) in more than 130 years. For the first time, all measurement units will be defined by natural phenomena rather than by…
Megan Ray Nichols
There is rising enthusiasm all over the country and the world when it comes to apprenticeships. According to the Bureau of Labor Statistics, from 2013 to 2017, the number of those participating in apprenticeship programs grew from 375,000 to almost 534,000, an increase of about 42 percent. In 2017…
The National Institute of Standards and Technology (NIST*) is a nonregulatory federal agency of the Department of Commerce and is the national metrology institute of the United States. NIST’s role in the development of voluntary consensus standards (VCS) is rooted in many policy decisions and…
Scott Sandwith
The Coordinate Metrology Society (CMS) continues its support and coverage of advancements in the precision dimensional metrology industry, as it has done for more than three decades. One of our key strengths has been the professional women in our membership ranks. They have been and continue to be…
CMSC
The Coordinate Metrology Society (CMS) has launched a new digital library of original technical papers delivered by metrology experts over the past 12 years at its annual conference—the Coordinate Metrology Society Conference (CMSC). The library is an online archival of more than 100 technical…
Belinda Jones
The PrecisionPath Consortium (PPC) for Large-Scale Manufacturing has completed and released their Technology Road Map for Large-Scale Manufacturing. The consortium is a collaboration of commercial-industry partners, the Coordinate Metrology Society, and the UNC Charlotte working to determine and…
Laser trackers are widely used for metrology and precision surveys. Depending on the approach, range, and instrument itself, the measurement accuracy can vary from millimeter to micron. Several applications of laser trackers used in the National Synchrotron Light Source II (NSLS-II) project will be…
Mark H. Stone
Historical dimensions for the cubit are provided by scripture and pyramid documentation. Additional dimensions from the Middle East are found in other early documents. Two major dimensions emerge from a history of the cubit. The first is the anthropological or short cubit, and the second is the…
Walter Copan
Being from Colorado, I’m a big fan of winter sports: skiing, skating, snowboarding, hockey, bobsledding, and even curling. Like many people, I look forward to the Winter Olympics every four years.
The Olympics are a test of the world’s greatest athletes’ skills—skills they have spent their entire…
Belinda Jones
In 2013, the Coordinate Metrology Society (CMS) launched the first level-one certification for 3D portable measurement professionals. Since that time, the organization has consistently rolled out additional assessments to support the industry. This year is no different. The CMS has announced plans…
Lucas M. Valdez, Mario O. Valdez, Joshua D. Montano, Ivan S. Trujillo
Tight-tolerance part inspection, whether for industrial applications or national laboratory requirements, is generally performed using cartesian coordinate measuring machines (CMMs). High-data density measurement sets to characterize part geometries are achieved using tactile probing or dynamic…
Keith Bevan
As the world heads into the fourth industrial revolution, we are still struggling with skills gaps and workforce shortages in the metrology industry. These skills are critical not only to manufacturers and scientists, but to virtually all growth sectors around the world. Taking a fresh look at how…
The light-controlled factory (LCF) is a UK development project running for five years, from July 2013 to July 2018. It is directed by the University of Bath and supported by University College London (UCL) and Loughborough University. This ambitious project aims to demonstrate a “ubiquitous” seven…
Ben P. Stein
Paving the way for transforming the world’s measurement system, an international task force has determined updated values for four fundamental constants of nature. The updated values comprise the last scientific piece of the puzzle for redefining the modern metric system, known as the…
