公开(公告)号：JP2002156296A

公开(公告)日：2002-05-31

申请号：JP2001298517

申请日：2001-09-27

Applicant: ABB AB

Inventor： SHAHCHERAGHI ROOZBEH ,  SOBEL JARL ,  BLOMKVIST KENT ,  LING HANS

IPC: G01L3/10

Abstract: PROBLEM TO BE SOLVED: To provide a torque converter capable of selecting the material of converting shaft independently from the magnetic characteristics of the material. SOLUTION: The torque converter whose magnetoelastic region 2 formed in a cylinder shape is permanently magnetized in the azimuth direction and has a converting shaft 1 arranged together with a magnetoelastic region 2 formed in cylinder fixed around the cylinder of the converting shaft 1. The converting shaft 1 provided with the magnetoelastic region 2 formed in cylinder is surrounded by a winding 4 supplied by alternating current. The winding 4 is connected to a phase detector 5. With this invention, magnetism and a nonlinear ferromagnetic material 3' physically contact the magnetoelastic region 2 formed in cylinder.

公开(公告)号：SE517238C2

公开(公告)日：2002-05-14

申请号：SE0003441

申请日：2000-09-27

Applicant: ABB AB

Inventor： SHAHCHERAGHI ROOZBEH ,  SOBEL JARL ,  BLOMKVIST KENT ,  LING HANS

IPC: G01L3/10

Abstract: A torque transducer for measuring torque transmitted in a rotating as well as a stationary shaft. The torque transducer comprises a transducer shaft 1 arranged with a cylinder-shaped magnetoelastic region 2 fixed to the cylindrical periphery of the transducer shaft, which cylinder-shaped magnetoelastic region is permanently magnetized in the azimuthal direction. The transducer shaft with the cylinder-shaped magnetoelastic region is surrounded by a winding 4 which is supplied by an alternating current. Further, the winding is connected to a phase-sensitive detector 5. According to the present invention, a magnetic and non-linear ferromagnetic material 3' is arranged in physical contact with the cylinder-shaped magnetoelastic region 2. The advantages are that the transducer shaft is manufactured independently of the magnetic properties of the shaft material and may substantially consist of a ferromagnetic material.

公开(公告)号：SE0003441L

公开(公告)日：2002-03-28

申请号：SE0003441

申请日：2000-09-27

Applicant: ABB AB

Inventor： SHAHCHERAGHI ROOZBEH ,  SOBEL JARL ,  BLOMKVIST KENT ,  LING HANS

IPC: G01L3/10

Abstract: A torque transducer for measuring torque transmitted in a rotating as well as a stationary shaft. The torque transducer comprises a transducer shaft 1 arranged with a cylinder-shaped magnetoelastic region 2 fixed to the cylindrical periphery of the transducer shaft, which cylinder-shaped magnetoelastic region is permanently magnetized in the azimuthal direction. The transducer shaft with the cylinder-shaped magnetoelastic region is surrounded by a winding 4 which is supplied by an alternating current. Further, the winding is connected to a phase-sensitive detector 5. According to the present invention, a magnetic and non-linear ferromagnetic material 3' is arranged in physical contact with the cylinder-shaped magnetoelastic region 2. The advantages are that the transducer shaft is manufactured independently of the magnetic properties of the shaft material and may substantially consist of a ferromagnetic material.