Features of a magnetic rotary encoder

Closed Analytical Formulae for Multi-Pole Magnetic Rings

“…The field contribution of α k,3 is computed by replacing B rem with −B rem and ψ k,1 with ψ k, 3 . Integration over the current layers α k,2 and α k,4 in azimuthal direction leads to incomplete elliptic integrals.…”

“…Active target wheels are used in automotive systems for position and speed sensing [1][2][3][4][5]. These are rings fixed to a shaft, whose angular position or velocity should be converted into an electronic signal [6,7].…”

Study on the effectiveness of dual complementary Hall-effect sensors in water flow measurement for reducing magnetic disturbance

“…Besides, the HE rotary encoders consume less power than the other mentioned types of encoders [6,8]. Generally, the HE encoders are based on the sequence of created digital codes [9] and they are used to detect the angular position of the rotary shaft or the number of complete rotations [10].…”

Binary position sensor for synchronous machines based on a serial n-bit sequential code

“…Clearly, this technique avoids the complexity of resolvers design. The advantages of magnetic encoders are the insensitivity to harsh environments, dust and mechanical resistance [7], but drawbacks are related with magnetic interference and limited resolution, which are the main focus of actual improvements in this device, achieving at least 13 bits [7,8]. Finally, there are the optical encoders that use photosensors to read a digital coded disco These sensors are widely used on industrial machinery, robotics and other applications thanks to its high resolution and simplicity.…”