Abstract
A magnetic position sensing system consists of a magnetic rotary ring with polarities magnetized on its radial surface and a position sensor made of magnetoresistance. Two quadrature sinusoidal output signals from sensor are processed into position information for motion control application. Magnetoresistance varies with the angle between magnetization (M) of external field and flow current (I) inside the sensor patterns. Therefore, the assembly error either in sensor or rotary ring would cause distorted signal. The assembly error between sensor and the medium such as offset, pitch, roll, yaw error and eccentricity between scale and stage of motion centre of read head would be discussed in this paper. Experimental and analytical parameter studies were conducted in this paper to discuss the accuracy error and variation of output quadrature signal caused by assembly error. Through the parameter studies, the data under various conditions can then be used to serve as a baseline.
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References
Benammar M, Gonzales ASP (2016) A novel PLL resolver angle position indicator. IEEE Trans Instrum Meas 65:123–131
Ben-Brahim L, Benammar M, Alhamadi MA (2009) A resolver angle estimator based on its excitation signal IEEE. Trans Ind Electron 56:574–580
Daniar A, Nasiri-Gheidari Z, Tootoonchian F (2017) Position error calculation of linear resolver under mechanical fault conditions. IET Sci Meas Technol 11:948–954
Dimitrova P, Andreev S, Popova L (2008) Thin Film Integrated AMR Sensor for Linear Position Measurements. Sens Actuators, A 147:387–390
Emura T, Wang L (2000) A high-resolution interpolator for incremental encoders based on the quadrature PLL method. IEEE Trans Ind Electron 47:84–90
Hsiao HS, Chang JY (2017) Characterization of signal integrity due to pitch–roll–yaw rotation tolerance in magnetic position sensing systems. IEEE Trans Magn 53:1–7
Hwang SH, Kim HJ, Kim JM, Liu L, Li H (2011) Compensation of amplitude imbalance and imperfect quadrature in resolver signals for PMSM drives. IEEE Trans Ind Appl 47:134–143
Ikeda M, Kaku H (1992) MR sensor for magnetic encoder. IEEE Transl J Magn Jpn 7:705–713
Jagiella M, Fericean S, Droxler R, Dorneich A (2004) New magneto-inductive sensing principle and its implementation in sensors for industrial applications. Proc IEEE Sens 2:1020–1023
Jogschies L, Klaas D, Kruppe R, Rittinger J, Taptimthong P, Wienecke A, Rissing L, Wurz MC (2015) Recent developments of magnetoresistive sensors for industrial applications. Sensors 15:28665–28689
Kim M, Moon W (2006) A new linear encoder-like capacitive displacement sensor. Measurement 39:481–489
Makinouchi S, Watanabe A, Takasaki M, Ohara T, Ong J, Wakui S (2011) An evaluation of a modulated laser encoder. Precis Eng 35:302–308
Mayer JRR (1994) High-resolution of rotary encoder analog quadrature signals. IEEE Trans Instrum Meas 43:494–498
Miyajima H, Yamamoto E, Yanagisawa K (1998) Optical micro encoder with sub-micron resolution using a VCSEL. Sens Actuators A Phys 71:213–218
Ripka P, Janosek M (2010) Advances in magnetic field sensors. IEEE Sens J 10:1108–1116
Tang Q, Peng D, Wu L, Chen X (2015) An inductive angular displacement sensor based on planar coil and contrate rotor. IEEE Sens J 15:3947–3954
Wu ST, Chen JY, Wu SH (2014) A rotary encoder with an eccentrically mounted ring magnet. IEEE Trans Instrum Meas 63:1907–1915
Zheng D, Zhang S, Wang S, Hu C, Zhao X (2015) A capacitive rotary encoder based on quadrature modulation and demodulation. IEEE Trans Instrum Meas 64:143–153
Acknowledgements
The authors are grateful to Ministry of Science and Technology of Taiwan for the Grant MOST 105-2622-E-007-008-CC2 in supporting this research. In addition, appreciations are given to reviewers for their thoughtful and constructive comments.
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Hsiao, HS., Chen, LQ., Sung, CK. et al. Characteristics of magnetic sensor with assembly errors in a rotary recording system. Microsyst Technol 26, 89–94 (2020). https://doi.org/10.1007/s00542-019-04449-5
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DOI: https://doi.org/10.1007/s00542-019-04449-5