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The transverse-flux linear switched-flux permanent magnet machine is investigated by 3-D finite-element analysis in this paper. The topology of the machine, as well as the machine operation principle, is introduced first. In order to improve the thrust force performance of the machine, two aspects are analyzed. One is the average thrust force, which is maximized by optimizing the mover stack length...
For precisely measuring the mass variation, different modes of cantilever-based mass sensor were developed. The dynamic mode applied for mass sensor has advantages of less thermal drift and high mass sensitivity. However, mass sensor is usually operated in liquid environment for bio-chemical examination, but the liquid viscosity significantly dampens the performance of the dynamic mode. In this paper,...
A mechanical machining method, scratch, is used to fabricate nano grooves in this investigation. The nanoindentation instrument with a lateral force module, which has high resolution three dimensional displacement and force sensors and actuators, is utilized to conduct the scratch tests. A Berkovich indenter with a sharp triangular pyramid diamond tip, whose tip radius is less than 50 nm, is used...
This experimental analysis aims to integrate biosignals, that is, electromyography (EMG) signals, with hand rehabilitation device. Primarily, it focuses on capturing the EMG signals for five prehensile tasks five-pulp pinch, lateral pinch, pulp-to-pulp pinch, tripod grip and power grip. The testing conducted on twenty-five subjects has provided insights on EMG signal and gripping/pinch force trends...
The objective of this work is to study the functional hand strength for ADL rehabilitation tasks based on EMG signals and gripping/pinch force measurement via multivariate data analysis (MVA): Principal Components Analysis (PCA) and Projections to Latent Structures (PLS). The study allows us to identify weak muscles of patients with motor weakness, such as spinal cord injury (SCI) and post-stroke...
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