By Jay Klevens Accurate electrical current measurement is critical to the power and electrical test industries. DC and low frequency ac current is usually measured using a current shunt. Shunt calibration has unique error sources […]
By Martin L. Kidd This Metrology 101 article addresses the impact of thermoelectric voltage (EMF) on low-voltage measurements. Using a high precision digital multimeter, the author demonstrates how you can inadvertently introduce thermal EMF errors.
By Hock Eng Lim This latest Metrology 101 articles shows us how to use new standards to calibrate the reference calibration output of a power meter. Read Full Article (PDF)
Jerry Eldred, Lead Metrologist for Evans Analytical Group (EAG) Calibration Services in Austin, Texas, demonstrates the basic methods of creating an ice-point bath.
By Frank Liebmann The objective of this article is to give laboratory personnel a basis to set up a calibration program for infrared thermometers. While this information is not a complete set of instructions, it […]