منابع مشابه
The Design of a Novel Multi-rate Three-phase Watt-hour Meter
With the development of the society, the demand of electric power becomes bigger and bigger. The phenomenon of unbalanced electricity in different time is worse and worse. In order to adjust electric power burthen with reason and save energy, we put forward the design of a novel multi-rate three-phase watt-hour meter. The design principle of a newfashioned multi-rate three-phase watt-hour meter...
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The AD7755 is a low-cost, single-chip solution for electrical energy measurement. The AD7755 is comprised of two ADCs, reference circuit, and all the signal processing necessary for the calculation of real (active) power. The AD7755 also includes direct drive capability for electromechanical counters (i.e., the energy register), and has a high-frequency pulse output for calibration and communic...
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Full Polarization Interferometric Radiometer (FPIR) is a light weight high resolution imaging polarimeter at Xband based on one dimensional aperture synthesis [1]. Differing from ESTAR-like precedents [2] on dual or full polarization, conical antenna beam and 2-point calibration. FPIR concept is proposed to Soil Moisture and Ocean Salinity (SMOS) follow on mission as an secondary payload in ord...
متن کاملA Method for Restraining Electromagnetic Interference of Electricity Meter by Means of Pulse Width Testing Circuit
Abstrac t This paper describes a method for restraining electromagnetic interference received by reference meter clearly not caused by watt-hour meter under test by means of pulse width testing circuit. The method is adopted to resolve the problems often occurred in the type tests of watt-hour meters. During the EMC test of watt-hour meters, the tester can’t confirm the additional error due to ...
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A 100-transistor MESFET grid oscillator has been fabricated that generates an effective radiated power of 660W at 9.8GHz and has a directivity of 18.0dB. This corresponds to a total radiated power of 10.3 w , or 103mW per device. This is the largest recorded output power for a grid oscillator. The grid drain-source bias voltage is 7.4V and the total drain current for the grid is 6.0A, resulting...
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ژورنال
عنوان ژورنال: Electrical Engineering
سال: 1958
ISSN: 0095-9197
DOI: 10.1109/ee.1958.6445387