A New Low Cost Linear Resolver Converter

Ben‐Brahim, Lazhar; Benammar, Mohieddine; Alhamadi, M.A.; Al‐Emadi, Nasser; Al‐Hitmi, Mohammed

doi:10.1109/jsen.2008.928924

Cited by 67 publications

(26 citation statements)

References 9 publications

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“…There are linear position sensors based on Hall effect that, in a pair, generate sin/cos signals [1]. In comparison to resolvers, which require an excitation signal of an order of a couple of kHz [2][3][4][5][6], the rotary encoders and the sensors based on Hall effect do not need this signal to work properly. In this paper, a special attention will be devoted to processing of the sin/cos signals generated by the sensors with no excitation signal.…”

Section: Introductionmentioning

confidence: 99%

“…By modifying and combining the sin/cos signals, a pseudo-linear signal can be obtained and further processed towards determination of the angular position [2,[4][5][6]. As it was done in [4,5], the pseudo-linear signal is obtained by combining those segments of the sin/cos signals that are characterized by a satisfying linearity.…”

Section: Introductionmentioning

confidence: 99%

“…As it was done in [4,5], the pseudo-linear signal is obtained by combining those segments of the sin/cos signals that are characterized by a satisfying linearity. For the proper functioning of this method, the information about the quadrant position (π/2 [rad] in width) of the measured angle has to be provided.…”

Section: Introductionmentioning

confidence: 99%

“…For the proper functioning of this method, the information about the quadrant position (π/2 [rad] in width) of the measured angle has to be provided. In this paper we use the same method for obtaining the pseudo-linear signal as in [4,5], except that instead of the current quadrant position of the input angle the half of the quadrant is determined. Since the sine and cosine signals are mutually phase shifted by π/2 we can determine the rotation direction of the rotating object [1].…”

Section: Introductionmentioning

confidence: 99%

“…The method we propose in this paper can be used, without any modifications, for processing of the resolver output signals after they are demodulated. In papers [2,[4][5][6] a several angular position determination methods, based on the resolver application, are proposed. These methods do not include A/D conversion, i.e.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A Novel Linearization Method of Sin/Cos Sensor Signals Used for Angular Position Determination

Živanović¹,

Lukić²,

Denić³

2014

Journal of Electrical Engineering and Technology

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-In this paper a novel method for angular position determination using sensors with sin / cos output and without an excitation signal, is presented. The linearization of the sensor transfer characteristic and digitalization of the measurement results are performed simultaneously with a goal to increase the measurement resolution. This improvement is particularly important for low angular velocities, and can be used to increase the resolution of incremental Hall, magnetic and optical sensors. This method includes two phases of sin/cos signal linearization. In the first linearization phase the pseudo-linear signal is generated. The second linearization phase, executed by the two-stage piecewise linear ADC, is an additional linearization of the pseudo-linear signal. Based on the LabVIEW software simulations of the proposed method, the contribution of each processing phase to a final measurement error is examined. After the proposed method is applied within 2π [rad] range, the maximal nonlinearity is reduced from 0.3307 [rad] (18.9447°) to 3·10 -4 [rad] (0.0172°).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Novel Linearization Method of Sin/Cos Sensor Signals Used for Angular Position Determination

Živanović¹,

Lukić²,

Denić³

2014

Journal of Electrical Engineering and Technology

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Modeling and Simulation of Analog Angular Sensors for Manufacturing Purposes

Figueiredo

2013

Mechatronics

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High Precision On‐Line Offset Correction for Motor Angle Sensors

Mori

Kojima

Kimpara

et al. 2017

Electrical Engineering Japan

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In this paper, an angle detecting system is proposed that calculates the offset correction values for the sine and cosine signals of angle sensors. The offset correction values are calculated not from the offset errors of the sine and cosine signals but from the 1f angle error (the fundamental frequency component of the sine and cosine signals) of the angle signals. Therefore, the system can correct the 1f angle error even when the sine and cosine signals contain the double-frequency components of the sine and cosine signals, as well as the dc offset errors. Moreover, it is possible to use low-cost microcomputers with low computing speed, because the offset correction values are dc quantities.

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A New Low Cost Linear Resolver Converter

Cited by 67 publications

References 9 publications

A Novel Linearization Method of Sin/Cos Sensor Signals Used for Angular Position Determination

A Novel Linearization Method of Sin/Cos Sensor Signals Used for Angular Position Determination

Modeling and Simulation of Analog Angular Sensors for Manufacturing Purposes

High Precision On‐Line Offset Correction for Motor Angle Sensors

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