Nissan Motor Company Limited

Daido Steel Co., Ltd.

Shigeo Hanashima

Itaru Shibata

Munekatsu Shimada

Hiroyuki Aoki

Shinichiro Yahagi

Mikiya Shinohara

Masashi Mizuno

Masaru Nagata

Nobuyuki Matsui

To obtain stable linear torque-output characteristics over a wide torque range in a magnetostrictive torque detecting apparatus having a shaft to be measured, an exciting coil for magnetically exciting the shaft, and a detecting coil for detecting magnetostrictive components generated in the shaft distorted by a torque, the shaft is particularly composed of a substrate shaft portion made of a high yield point material and a shape anisotropic layer portion made of a high magnetostrictive material metallographically welded on an outer surface of the substrate shaft. The welded shape anisotropic layer portion is formed with two symmetrical groups of concave/convex portions each arranged at regular angular intervals on the outer circumferential surface thereof at an inclination angle with respect to the axial direction of the shaft.

Magnetostrictive torque detecting apparatus

Growing community of inventors

Tokai, Japan

Shigeo Hanashima