Temperature-offsetting magnetically coupled pressure sender

In a magnetically coupled pressure gauge for indicating fluid pressure within a pressure vessel outside the pressure vessel, comprising in combination,

• (a) a rotatable sender means mounted inside the pressure vessel for providing a rotatable magnetic field having a specific direction, the specific direction of the magnetic field in the plane parallel to an axis of symmetry of the magnetic field;
• (b) a pressure actuated bellows mechanism also mounted inside of the pressure vessel coupled for rotating the sender means rotationally changing orientation of the specific direction of the magnetic field in a plane parallel to the axis of symmetry responsive to variations in fluid pressure within the vessel;
• and
• (c) sensor means mounted outside of the pressure vessel for sensing and indicating orientation of the specific direction of the magnetic field provided by the sender means in a plane parallel its axis of symmetry as rotated to a particular orientation by the pressure actuated bellows mechanism,
• the improvement wherein:
• said pressure activated bellows mechanism is coupled for rotating said sender means rotationally includes an intermediate member responsive to temperature within said pressure vessel.