MAGNETIC TYPE DISPLACEMENT DETECTOR CAPABLE OF REDUCING DETECTION ERROR

摘要

To reduce influence on a detection error due to a fastener in a magnetic type displacement detector for detecting the magnetic flux density of a target object fastened to an object through the fastener by a detection body to acquire displacement information of the object.SOLUTION: A magnetic type displacement detector 1 for detecting displacement of an object 2 includes a target object 11 fastened to the object 2, and a plurality of detection bodies 12-1 and 12-2 for detecting a change in magnetic flux density due to movement of the target body 11 to individually output a signal corresponding to the position of the target object 11. Each of the plurality of detection bodies 12-1 and 12-2 is arranged such that an area being not a fastened part to the object 2 in the target object 11 is located within the magnetic flux range of at least one detection body between the plurality of detection bodies 12-1 and 12-2.SELECTED DRAWING: Figure 1