Patent ID: 9429597
Filing Date: 2016-08-30
CPC Classification: G01R

Claim Text:
1. A voltmeter for indicating voltage and phase difference between two power lines, said voltmeter comprising: (a) a first probe having a first resistor with a resistance; (b) a second probe having a second resistor, said second resistor being in electrical series with said first resistor and having a resistance matched to said resistance of said first resistor; (c) a first and a second metering resistor in an electrical series with each other and with and between said first and second resistors, said first metering resistor having a resistance and said second metering resistor having a resistance matched to said resistance of said first metering resistor; (d) shielding surrounding said first and second probes and said first and second metering resistors, said shielding being in electrical contact with said electrical series; (e) a meter being in electrical connection with said electrical series and having