Patent ID: 9217759
Filing Date: 2015-12-22
Classification: G01R,G11B

Abstract:
1. A method for measurement of a current, the method comprising the steps of: passing the current through a shunt, the passage of the first current through the shunt defining a flow path from a first point to a second point to a third point to a fourth point; the shunt composed between the first point and the second point of a first material; the shunt composed between the second point and the third point of a second material; the shunt composed between the third point and the fourth point of a third material; communicating a potential from a first sensing point through a first sensing line to a fifth point, the first sensing line composed between the first sensing point and the fifth point of a fourth material; communicating a potential from a second sensing point through a second sensing line to a sixth point, the second sensing line composed between the sixth point and the second sensing point of a fifth material; the second and fourth materials being of identical composition and being electrically and mechanically bonded, said bond substantially free of anything other than said identical composition; the second and fifth materials being of identical composition and being electrically and mechanically bonded, said bond substantially free of anything other than said identical composition; the first and third materials being electrically conductive; the second material being of higher resistance than the first and third materials; wherein a respective identical composition of the second and fifth materials and a respective identical composition of the second and fourth materials are identical; the method further comprising providing a conductor from the fifth point to a seventh point, said conductor composed of a sixth material non-identical to the fourth material, and providing a conductor from the sixth point to an eighth point, said conductor composed of a seventh material non-identical to the fifth material, the fifth and sixth points juxtaposed nearby to each other, the fifth and sixth points taken together being thermally isolated from the shunt; communicating a potential from the fifth point to the seventh point, and communicating a potential from the sixth point to the eighth point; and measuring voltage between the seventh point and the eighth point at a voltage measurement apparatus.