Calibrating DC Shunts: Techniques and Uncertainties

July 25, 2012 0

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 […]

Watch Out for Those Thermoelectric Voltages!

May 22, 2012 0

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. […]

Infrared Thermometer Calibration

August 16, 2011 0

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 […]

1 2 3 4