System and method for measuring electric current in a pipeline

Details System and method for measuring electric current in a pipeline System and method for measuring electric current in a pipeline

2008-01-08

2008-01-08

Hirshfeld, Andrew H. (Department: 2858)

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

C324S718000, C073S865800

Reexamination Certificate

active

07317308

ABSTRACT:
A system for measuring a voltage differential in a current-carrying pipe using a propulsion vehicle for conveying the system inside the pipe. The system includes a first contact for maintaining electrical contact with the pipe as the vehicle moves through the pipe, a second contact positioned in a spaced apart relationship from the first contact for maintaining electrical contact with the pipe as the vehicle moves through the pipe, and a voltage reading device connected to the first contact and the second contact for measuring the voltage between the first contact and the second contact as the vehicle moves through the pipe.

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