Patent Number: 6,670,806

Title: Magnetic position sensor for measuring linear displacement

Abstract: The invention relates to a device with a magnetic position sensorcomprising a field sensor (5) and analysis electronics (7) for lineardisplacements of a rod-shaped component (3), in particular the shaft of anactuator, with an element (M) generating a magnetic field (4) and aposition sensor measuring the magnetic field strength angle of this field,the field angle signal determined by this sensor being used fordisplacement path determination. The element generating a magnetic field(4) is an axially magnetized magnet casing (M) which surrounds therod-shaped component (3) of the actuator itself, is fixedly connectedthereto and can rotate therewith about its displacement axis (z).

Inventors: Wendt; Matthias (Wuerselen, DE), Elferich; Reinhold (Aachen, DE)


International Classification: F15B 15/28 (20060101); F15B 15/00 (20060101); F16K 37/00 (20060101); G01B 7/00 (20060101); G01D 5/14 (20060101); G01D 5/16 (20060101); G01D 5/12 (20060101); F15B 13/04 (20060101); F15B 13/00 (20060101); G01B 007/00 (); G01D 005/12 (); F16K 037/00 (); H01F 007/02 ()

Expiration Date: 12/32016