World's Largest Wheatstone Bridge

Bret Cahill · 2010-05-03T16:46:39+00:00

String a wire back and forth across / along a fault line to measurevery small displacements in the earth's surface. If the resistanceand/or tensile strength needs to be higher than a common single alloywire then structural steel cable could be wrapped around a insulatedwire with a higher resistivity. It could be temperature compensatedas usual, with another wire of the same length loosely supportednearby in another leg of the bridge.An abandoned power line may be good to go if it is properly located.Good info sometimes comes in small displacements.Bret Cahill