scholarly journals Development of Angular Position-Controllable Fluid-Driven Spindle and Its Angular Position Control(Machine Elements, Design and Manufacturing)

2010 ◽  
Vol 76 (763) ◽  
pp. 749-758 ◽  
Author(s):  
Yohichi NAKAO ◽  
Naoya ASAOKA ◽  
Masayoshi FUJIMOTO
Keyword(s):  
Position Control ◽  
Angular Position ◽  
Design And Manufacturing ◽  
Machine Elements ◽  
Control Machine

scholarly journals Design of a magnetic encoder using Hall effect

2019 ◽  
Vol 13 (2) ◽  
pp. 254-261
Author(s):  
William Alejandro López-Contreras ◽  
José Danilo Rairán-Antolines
Keyword(s):  
Hall Effect ◽  
Relative Motion ◽  
Direct Current ◽  
Permanent Magnets ◽  
Position Control ◽  
Angular Position ◽  
Linearization Method ◽  
Acquisition Process ◽  
Voltage Variation ◽  
Hall Sensors

We present the design of a magnetic encoder to measure angular position. The proposed encoder includes two Hall sensors in quadrature in a fixed platform. In addition, and over the sensors, there are two permanent magnets in a shaft. The relative motion between the fixed and the movable components generate a voltage variation in the sensors, which serve to generate the approximation of the angular position. We detail the acquisition process and the linearization method, because we consider that these are the most important contributions of this work. Lastly, we show the application of the encoder in the position control of a direct current motor to show the performance of the encoder estimating fast and slow angular position changes.

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