Measurement of average power in a 60Hz circuit (equivalent to V RMS × I RMS × cos(ø)) can be done by sampling the product of voltage and current and averaging. This requires four quadrant ...

You almost never hear of a DC Watt Meter – one just does some mental math with Volts and Amps at the back of one’s head. An AC Watt Meter, on the other hand, can by pretty useful on any workbench.

Line power measurements are commonly required to evaluate the performance of devices or circuits. Modular digitizers, coupled with appropriate voltage and current probes can make these power ...

For the PDF version of this article, click here. In 1776, Scottish economist Adam Smith introduced the concept of division of labor and specialization, concluding that it is in the economic interest ...

The demand to increase energy efficiency in electrical products is driving the development of more accurate measurement instruments. Modern instruments now can quantify incremental gains made as ...

Focusing on power calibration to deliver quality results at a reasonable cost Yokogawa Meters & Instruments Corporation announces that it has developed the LS3300, an AC power calibrator that can ...

Intended for reliable and comprehensive calibration of power meters, the LS3300 Precision AC Power Calibrator outputs highly accurate and stable power calibration signal, which now include harmonics, ...

If you want to measure voltage you reach for a voltmeter. Current? An ammeter. Resistance? An ohmmeter. But what about measuring AC power? A watt meter? Usually. But if you know what to do, you could ...

The power factor measurement has long been accepted as an invaluable tool for identifying insulation defects, such as ageing, deterioration, moisture ingress and localized failures, involving the ...