In Magnetostrictive Transducers respectively hydraulic sensors a current pulse is generated inside a copper pipe for the position measuring, thereby a circular magnetic field is created which spreads bundled inside a waveguide. The permanent magnet of the Magnetostrictive Transducer forms measuring detector whose magnetic flux line is at a 90° degree angle to electric flux line of the current pulse. Because of the heterodyne of the flux lines a flexible distortion is generated inside the waveguide by magnetostriction. The distortion spreads to both sides inside the waveguide. The propagation speed amounts 2850 m/s. This mechanic pulse turns into a electric signal in the end of the waveguide. A controller calculates the run-time from the source until the Signal Conditioner. This run-time is proportional to the distance between Signal Conditioner and permanent magnet. This principle enables a contactless, nonwearing and absolute measurement. Magnetostrictive Transducers are working reliable with hydraulic cylinders, machine tools, squeezing machines, woodworking machines, rolling mills, packaging machines, assembly gantries, and cutting lines.
WayCon Positionsmesstechnik GmbH
Fon: +49 89 679713-0, Fax: -250
Auf der Pehle 1
Fon: + 49 2232 56 79-44, Fax: -45