Magnetic coupling between measurement element and external equipment - uses two pairs of magnets with each pair joined by similar pole surfaces

摘要

The measurement element is installed inside a pipe or a vessel, and the external equipment is a display and/or switching device, for flow, pressure and level monitoring of liqs. or gases. It has permanent magnets with adjacent like poles in the measurement eleemnt, and opposite magnets on the external equipment. The measuring element and the external equipment carry two permanent magnets magnetised in the direction of their movement, and directly joined by their pole like surfaces, so that a slipless movement transmission is achieved by the mutual interaction of the two pairs of magnets.