Articles – Page 7 – Cal Lab Magazine

Metrology Digitalization Workshop

July 26, 2024 Michael Schwartz

Last week, I had the privilege of presenting at NCSLI’s first annual “Metrology Digitalization Workshop,” a significant milestone in our field. I couldn’t help but reflect on the journey we’ve taken since 2002, when my […]

How Low Can My Load Cell Go?

May 15, 2024 Office

by Henry Zumbrun, Morehouse Instrument Company Load cells are subject to numerous factors that can affect their performance. Some factors include the design of the load cell, the readout used with the load cell, environmental […]

Deconvolution-Based Time Response Measurement for Wideband Power Sensors

May 15, 2024 Office

by Lichun Wang & Yifan Zhang, Keysight Technologies In time response tests involving “non-ideal” pulse-modulated signals for wideband power sensor characterization, result correction becomes essential. Traditionally, the Root Sum Square (RSS) calculation is employed for […]

Remote Debugging in the 21st Century

May 15, 2024 Michael Schwartz

Now that more jobs have a “work from home” aspect, I thought I would focus this Automation Corner on how debugging has changed over the years. Back in the late 1990s, I first started working […]

Sidestepping the Potholes in DC Voltage Traceability

February 1, 2024 Office

by David F. Martson The development and use of intrinsic standards, e.g., Josephson Voltage Standard or JVS, has brought the primary level of uncertainty achievable for DC voltage down to a few nV/V (ppb), while […]

Some Perspective on Risk and Decision Rules in Calibration

February 1, 2024 Office

by James G. Salsbury When an accredited laboratory makes a statement of conformity to a specification, ISO/IEC 17025 requires the use of a decision rule that takes into account the level of risk associated with […]

Pushing the Observer Effect

February 1, 2024 Office

by Dan Wiswell We’ve all heard people speak of accuracies and tolerances in more colorful language than what would be expected in a metrology lab. “Plus-or-minus a hand grenade” or, “Close enough for government work” […]

Moving Away from Waterfall Metrology

February 1, 2024 Michael Schwartz

Over the years, I have had one foot in the metrology/test and measurement world and the other foot in software and software architecture. With two different perspectives, I tend to look at things from multiple […]