Showing papers on "Electricity meter published in 1972"

Application of an Arbitrary 6-Port Junction to Power-Measurement Problems

Abstract: An analysis of an arbitrary 6-port junction, four ports of which are terminated by power meters, shows that the net power input (or output) at either of the remaining ports is a linear function of the four power meter indications. The validity of this result has been experimentally demonstrated at 10 GHz. This device promises to be a useful tool in a wide variety of power measurement and calibration problems.

Meter socket voltage recorder unit

Abstract: The invention pertains to apparatus for monitoring metered electrical voltage to determine the possible existence of voltage fluctuations in electrical power supplied to customers by electric utility companies. The voltage recorder unit consists of a housing having an exteriorly projecting adapter receivable within a conventional electric meter socket upon removal of the meter therefrom, and the unit includes a meter socket into which the removed meter is inserted. A voltage recorder is located within the housing electrically connected to a circuit interconnecting the housing adapter and meter socket for sensing the voltage being metered. All conductors and electric terminals are located within the recorder unit housing, or the meter box or housing upon which the unit is supported, and an opening is defined in the unit housing through which the meter extends for reading purposes.

Electronic Method with Direct Time Encoding for Precision Measurement of Electric Power over a Wide Range of Frequency

Abstract: The principle of power measurement by thermal means has the advantage of a very large bandwidth and gives the possibility to realize time or frequency encoding in a simple way. The new method described is based on a known operation using special thermal converters with several heaters. The multiple heating, however, is done by a multiplexing operation on single-heater converters. It is shown that, by means of this principle, a power meter can be set up enabling precision measurement in a wide range of frequency. The measurement of real power in polyphase systems is another application of the same principle.

Direct current resistance scale expander

Abstract: A device for electrically expanding an electric meter the device consisting of a circuit that is in series with the meter that is intended to be expanded; the circuit including a voltage source, a variable resistor and a fuse.