One application that uses a precision power supply and DMM involves characterizing the current drawn by a device or circuit board at different voltage levels. Figure 1 shows a typical setup. Engineers ...

Low operating current is a factor in a wide range of applications from R&D to production. Measuring these low currents requires an instrument that provides the necessary long-term accuracy. Key ...

When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

What do a Rogowski coil, a magnetic core, and a hall effect sensor have in common? They are all ways you can make oscilloscope probes that measure current. If you think of a scope as a voltage ...

A multimeter and its test leads allow electrical workers to reach into an energized panel, touch live circuit components with the end of the test leads, and capture electrical readings like voltage, ...

Using a 25-µ? shunt, the SFP101 current, voltage, and temperature measurement IC from Sendyne typically achieves a current measurement accuracy to within ±0.05%, while operating over the automotive ...

Measuring AC current (220-V mains RMS current) is not as simple as measuring DC current. In DC current measurement, you can simply hook the oscilloscope probe to the shunt resistor and calculate the ...

Is it possible to use a DMM to verify that a circuit isn’t hot, and then get shocked anyhow? Yes, and you need to make that impossible. Here’s how you do it. First, understand why the DMM might not ...

Fluxgate current sensors have emerged as a robust technology for the measurement of both alternating and direct currents, harnessing the non-linear magnetic characteristics of ferromagnetic materials.