This paper presents a review of the latest advances in the field of capacitive, inductive (eddy
current), and magnetic sensors, for measurement of absolute displacement. The need for …

Terrain identification is essential for the control of robotic transtibial prostheses to realize
smooth locomotion transitions. In this paper, we present a real-time fuzzy-logic-based terrain …

This paper presents an alternative method utilizing real-time measurements of existing rotor
magnetic field in the feedback loop for multi degree-of-freedom (DOF) orientation control of a …

A novel design of a magnetic rotational sensor is presented in this paper. It contains a ring
magnet simply magnetized through its central axis, which is deliberately displaced a …

With the advantage of low cost and small size, a hall sensor has been exploited to detect
motor position, and this strategy has attracted much attention. A challenge is that …

This article presents a sensor fusion method to estimate the three-degrees-of-freedom
(DOFs) orientation of a ball-joint-like permanent magnet spherical motor (PMSM) and its …

This paper presents a new method, referred to here as back-EMF method, for sensing the
multi-DOF motion of a permanent magnet spherical motor (PMSM). With an explicit model …

This paper presents a gradient-based method, along with the design concept,
characteristics, and operating range of a magnetic tensor sensor (MTS), for locating and …

This paper proposes a novel tiered type permanent magnet spherical motor (T-PMSpM),
which has the advantage of relatively larger torque ability compared with most existing …

The acquisition of rotation angle and pose information of precision spherical joint is of great
importance for error motion prediction analysis and motion control. In the early stage, an …