Magnetism sensitive element

Abstract

Abstract PURPOSE:To obtain highly accurate position detecting signals, characterized by the constitution wherein ferromagnetic metal thin film magnetoresistance elements are divided into a plurality of axial symmetric or point symmetric units and neighboring polygonal line patterns constituting the magnetoresistance elements between the units are arranged at a specified angle. CONSTITUTION:The magnetoresistance elements between ferromagnetic metal magnetoresistance element units A-H are constituted by neighboring polygonal line patterns PA-PH. The patterns are arranged at, e.g., 30 deg. and 60 deg. alternately. The parts between an output terminals OUT1 and OUT4 are connected by jumper wires J1 and J4, and a bridge is formed. Then two phase outputs, whose phases are different by 120 deg., are obtained. Or signals, whose phases are different by 120 deg. one another, are formed, and three phase position signals are obtained from one magnetism sensitive element. Or the neighboring polygonal line patterns between the units are arranged at 45 deg., so that two phase outputs, whose phases are different by 90 deg. are obtained.

Inventors

• 👤 Tsunehiro Maruo
• 👤 丸尾　恒弘
• 👤 Tsumoru Matsumoto
• 👤 松本　積
• 👤 Hiroyuki Hara
• 👤 原　啓之

Bibliographic Details