I started with a KillAWatt P4400 power meter and the U.S. Department of Energy average of 11 cents per kilowatt hour of electricity. After that, I estimated my own household's average device usage.

我以一只KillWatt P 4400型电表和美国能源部每千瓦平均11美分的价格开始，之后，我评估了我家的使用的所有小设计的平均使用量。

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Check for oscillations by connecting an oscilloscope in parallel with the device and the meter.

将示波器并联到器件和电压表上，检查振荡情况。

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By analyzing each error source of power meter calibration device, the uncertainty of power meter calibration device is analyzed and calculated with mathematical statistics and experimental method.

通过对电能表校验装置的各项误差源的分析，利用数理统计和实验方法对电能表校验装置的不确定度进行分析和计算。

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The company is currently trialling its ADM smart meter device for gas and water, both in the UK and internationally.

BBC: Smart Metering Systems firm to float on AIM market

The chip, in turn, wirelessly powered a radio-wave device that was located a meter away and measured energy from the ear.

WSJ: Harnessing Energy From the Body to Power Devices

The company has spent several years developing a "portable people meter"--a cell-phone-sized device that panelists could carry with them and automatically record not only radio signals but television sound and even such other acoustic sources as music piped in at a grocery store.

FORBES: A Seismic Shift In Rating Radio