A roller recording device for iron ore

Abstract

This utility model relates to the field of geological exploration technology and discloses a roller-type iron ore recording device, including a sensing body. A magnetic roller is mounted on the head of the sensing body, a Hall effect sensor is mounted on the bottom of the sensing body, a display screen is mounted on the top of the sensing body, and an operation button is mounted on the top of the sensing body. A handheld rod is mounted on the tail of the sensing body, and a battery assembly is installed inside the handheld rod. This roller-type iron ore recording device, through its structure combining a top cylindrical magnet and a Hall effect sensor, achieves rapid identification of iron content in rock cores. The cylindrical magnet generates a stable magnetic field when rolling. Iron-containing minerals in the rock core cause magnetic field distortion. The symmetrically installed Hall effect sensors can accurately capture this change and convert it into an electrical signal, eliminating the need for repeated manual magnet movement and observation, greatly simplifying operation. Furthermore, it can distinguish between high, medium, and low iron content based on signal strength, improving detection accuracy and solving the problems of cumbersome and ambiguous judgments in traditional manual testing.

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