Watch Out for Those Thermoelectric Voltages!

In the Fluke 8508A, a technique called "Tru-ohms" can be used to easily remove EMFs.
In the Fluke 8508A, a technique called “Tru-ohms” can be used to easily remove EMFs.

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.


Share