David H. Parker’s picture

By: 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 highways.

George Orji’s picture

By: George Orji

What are you looking to measure? This is one of the central questions for a metrologist (a measurement scientist) and is usually answered before measurements can proceed. It is impossible to make sense of the results without knowing the measurand—the actual physical dimension or other property of the sample you want to measure—regardless of the method you use.

However, the measurand could be hard to obtain if it is not defined properly, or if multiple instruments are involved.

Ryan E. Day’s picture

By: Ryan E. Day

If your manufacturing organization is going to grow, you know you need an inspection solution beyond the capabilities of micrometers and calipers. You know you need to gather more data in a faster and more reliable manner. It’s time to invest in a 3D inspection solution like a coordinate measuring machine (CMM). You also know CMMs require a significant investment and you shouldn’t rush in uninformed. Here are three questions to ask yourself to help you make wise decisions that will result in a good return on investment.

Stephan Schlamminger’s picture

By: Stephan Schlamminger

I discovered my affinity for attractive instruments while working a job before coming to NIST. My boss at the time had a love affair with the common hose clamp—the one with the worm gear.

Ryan E. Day’s picture

By: Ryan E. Day

Traditionally, technical jobs have been underrepresented by women. But that's changing, says Emily O'Dea, commercial services process manager at Hexagon Manufacturing Intelligence.

“Without a doubt we're definitely outnumbered,” says O’Dea. “I started [my career] in a smaller company. It was unusual because we were four application engineers, and three of us were women.”

NIST’s picture


A new measurement approach proposed by scientists at the National Institute of Standards and Technology (NIST) could lead to a better way to calibrate computed tomography (CT) scanners, potentially streamlining patient treatment by improving communication among doctors. 

Marlon Walker’s picture

By: Marlon Walker

Robots have been a part of industry longer than you might think. The patent for the first industrial robot, Unimate, was granted in 1961. While robots were sometimes utilized by larger manufacturers, such as automotive original equipment manufacturers (OEMs), they were rarely an option for small and medium-sized manufacturers (SMMs).

MIT News’s picture

By: MIT News

A novel system developed at MIT uses RFID tags to help robots home in on moving objects with unprecedented speed and accuracy. The system could enable greater collaboration and precision by robots working on packaging and assembly, and by swarms of drones carrying out search-and-rescue missions.

NIST’s picture


Engineers at the National Institute of Standards and Technology (NIST) needed a way to secure smart manufacturing systems using the digital thread, so they turned to the new kid on the block... blockchain, that is.

Guangnan Meng’s picture

By: Guangnan Meng

Electrodes are essential components of modern lithium-ion batteries, which are used to power mobile electronic devices, electric vehicles, and many other products. The battery’s surface structure and engineering are directly related to its performance, life expectancy, and safety.

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