US Patent 11650118 Differential pressure sensor with magnetic dial

A differential pressure sensor is provided with an indicator assembly to represent the measured differential pressure. The sensor includes a cylindrical tube with a magnetic piston slidably disposed within. The indicator assembly is positioned adjacent to the tube and includes a first magnet having a first polarity direction and a second magnet having a second polarity direction. The magnets are provided in the indicator assembly such that the first and second polarity directions are parallel to one another. The first and second magnets are symmetrically disposed and offset from one another about a center of rotation of the indicator assembly.