▎ 摘　　要

NOVELTY - The sensor has a semiconductor sensor that is made of metallurgical graphene, and that is produced on the surface of a liquid metal such as copper or nickel or copper alloy or nickel alloy. The sensor is made of two-dimensional polycrystalline material composed of monolayer graphene domains with a diagonal from 2 to 1000 μ m. USE - Bifunctional cryogenic sensor used for measuring temperature and magnetic field based on graphene sensory element.