Long range alternating current phasing voltmeter
First Claim
1. A phasing voltmeter system, said device comprising:
- (1) first test probe adapted to detect a first voltage and to generate and transmit a first voltage signal related to said first voltage, said first signal being transmitted on a first carrier frequency;
(2) a second test probe adapted to detect a second voltage and to generate a second voltage signal;
(3) a first frequency translator in communication with said first test probe and adapted to receive said first voltage signal and to translate said first voltage signal from said first carrier frequency to a second carrier frequency, said first frequency translator further adapted to transmit said first voltage signal on said second carrier frequency;
(4) a second frequency translator in communication with said first frequency translator and adapted to receive said first voltage signal and translate said first voltage signal from said second carrier frequency to said first carrier frequency and to transmit said first voltage signal to said second test probe, said second test probe being adapted to receive said first voltage signal;
(5) said second test probe includinga processor adapted to compare said first and said second voltage signals, anda display in communication with said processor for displaying information about said first and said second voltage signals.
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Accused Products
Abstract
A long-range wireless phasing voltmeter having a high impedance AC voltmeter in series between two high impedance probes. Shielding surrounds and electrically isolates the voltmeter and probes that communicate wirelessly via a pair of frequency translators, thus eliminating the cable customarily used to connect the probes and enabling measurements of the voltages, voltage differences, phases and phase difference between two conductor that may be miles apart. The signal transmitted from the first probe to the second may be analog or digital and is automatically compensated to correct the synchronization of the transmitted signal for the delay required to send it via the two translators.
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Citations
11 Claims
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1. A phasing voltmeter system, said device comprising:
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(1) first test probe adapted to detect a first voltage and to generate and transmit a first voltage signal related to said first voltage, said first signal being transmitted on a first carrier frequency; (2) a second test probe adapted to detect a second voltage and to generate a second voltage signal; (3) a first frequency translator in communication with said first test probe and adapted to receive said first voltage signal and to translate said first voltage signal from said first carrier frequency to a second carrier frequency, said first frequency translator further adapted to transmit said first voltage signal on said second carrier frequency; (4) a second frequency translator in communication with said first frequency translator and adapted to receive said first voltage signal and translate said first voltage signal from said second carrier frequency to said first carrier frequency and to transmit said first voltage signal to said second test probe, said second test probe being adapted to receive said first voltage signal; (5) said second test probe including a processor adapted to compare said first and said second voltage signals, and a display in communication with said processor for displaying information about said first and said second voltage signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of measuring voltage signal information about two conductors separated by a distance, said method comprising the steps of:
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generating first voltage signal information related to a voltage carried by a first conductor; generating second voltage signal information related to a voltage carried by a second conductor, said second conductor spaced apart from said first conductor; transmitting said first voltage signal information to a processor; reading said second voltage signal information by said processor; compensating said first voltage signal information for the time to transmit said first voltage signal information to said processor; and comparing said first and said second voltage signals to obtain a difference in said first and said second voltages. - View Dependent Claims (10)
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11. A method of measuring voltage signal information about two conductors separated by a distance, said method comprising the steps of:
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generating first voltage signal information related to a voltage carried by a first conductor; generating second voltage signal information related to a voltage carried by a second conductor spaced apart from said first conductor; transmitting said first voltage signal information to a first frequency translator; transmitting said first voltage signal information from said first frequency translator to a second frequency translator; transmitting said first voltage signal information from said second frequency translator to a processor; and comparing using said processor said first and said second voltage signal information to obtain a difference in said first and said second voltages.
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Specification