Patent ID: 7250755

Claim:
A magnetic variation sensor comprising a magneto-electricity conversion element for picking up variations in magnetic fields and converting the variations picked up into electric signals, a cable connected to said magneto-electricity conversion element, a resin shell enclosing said magneto-electricity conversion element and a portion of said cable where said cable is connected to said magneto-electricity conversion element, and a mounting piece in the form of a metallic plate secured to said shell with a portion of said mounting piece embedded in said shell, said portion of said mounting piece being formed with a hole through which said cable passes, said hole having a non-circular cross-section, whereby said mounting piece is prevented from rotating relative to said shell, wherein said hole has a cutout extending to an outer edge of said mounting piece, whereby said cable can be pushed into said hole through said cutout, and said cutout has a width smaller than a length of a line extending between opposite walls of the hole through, and perpendicular to, a center axis of the hole.