Measuring internal pressure in pressure vessel using magnetic circuit esp. in cold gas container

摘要

The flux alteration in the magnetic circuit is caused by a deformation of the pressure vessel wall (4) affecting the pressure alteration. A permanent or an electromagnet (12) and a winding (13) are arranged at the pressure vessel wall. A voltage is induced in the coil (13) with the alteration of the deformation of the pressure vessel wall, based on the altering inner pressure in the vessel (3), by the magnetic field of the magnet. This represents a measure for the alteration of the inner pressure of the pressure vessel.