High resolution processing of position sensor with amplitude modulated signals of servo drive

Tiapkin, Mikhail; Balkovoi, A. P.

doi:10.1109/eiconrus.2017.7910735

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…Digital signal processing enables the limitations of analog control systems to be bypassed, thus laying a new foundation for more effective servomotor management. Based on [59][60][61][62], it is possible to identify the key aspects in the construction of this principle and draw conclusions about its advantages and disadvantages.…”

Section: Digital Signal Processing In Servomotorsmentioning

confidence: 99%

Principles and Methods of Servomotor Control: Comparative Analysis and Applications

Autsou,

Kudelina,

Vaimann

et al. 2024

Applied Sciences

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Servomotors have found widespread application in many areas, such as manufacturing, robotics, automation, and others. Thus, the control of servomotors is divided into various principles and methods, leading to a high diversity of control systems. This article provides an overview of types of servomotors and their basic principles and control methods. Principles such as digital signal processing, feedback control principle, field-oriented control, and integration with Industry 4.0 are discussed. Based on these control principles, the article presents popular control methods: PWM control, current control, two-loop control, fuzzy-logic control, and programmable control. The article concludes with a comparison of the presented methods on several criteria, and as an example, it includes the results of modeling a servomotor using the fuzzy-logic control method.

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Section: Digital Signal Processing In Servomotorsmentioning

confidence: 99%

Principles and Methods of Servomotor Control: Comparative Analysis and Applications

Autsou,

Kudelina,

Vaimann

et al. 2024

Applied Sciences

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“…In order to relieve the pressure of microprocessor on sampling, the detection part is usually implemented by peripheral hardware circuits. After signal conditioning circuit, as in [20], the resolver signals are then synchronously demodulated by sampling at the peak of the sinusoid excitation signal in the sample and hold circuit. Next, the signals are sampled by A/D converters (ADC), which produces the digital value of sine and cosine envelope signals given by…”

Section: Synchronous Envelope Detectionmentioning

confidence: 99%

Demodulation of Angular Position and Velocity from Resolver Signals via Chebyshev Filter-Based Type III Phase Locked Loop

Liu¹,

Wu²

2018

Electronics

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A high-accuracy demodulation algorithm is required to estimate angular position and angular velocity from resolver signals. In order to improve the estimation accuracy of conventional phase-locked loop (PLL) based demodulation method, a Chebyshev filter-based type III PLL method is proposed in this paper. The proposed method makes PLL become a system of type III tracking loop, which could greatly reduce the theoretical constant deviation in the estimation results of conventional type II PLL in case of variable speed. Meanwhile, the eigenvalues of type III PLL are placed to be the same position as those of a Chebyshev low-pass filter. In this way, demodulation parameters with stronger filter properties can be obtained to effectively suppress the high-frequency measurement noise in resolver signals. Thus, the proposed method can achieve higher demodulation precision compared with the conventional ones. Simulations and experiments are performed to validate the proposed demodulation method.

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“…2 shows a general digital signal processing diagram built for the purpose of capacitance measurement. Field Programmable Gate Arrays (FPGA) [10,15], Complex Programmable Logic Devices (CPLD) [16] or Digital Signal Processors (DSP) [17] could serve as the signal processing platform. The aforementioned platforms can generate the required excitation signal by digital means.…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of a transimpedance amplifier based front-end circuit for capacitance measurements

2020

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In this study, transimpedance amplifier based front-end circuits which can be employed to measure small capacitances were designed, analyzed and simulated using analog electronic circuit simulator. The front-end circuit converts the current flowing through the measured capacitance into a modulated voltage value which contains information regarding the desired capacitance. The frequency-domain, time-domain, stability and noise analyzes were carried out numerically and in simulation environment using a circuit simulator. The analytical, numerical and simulation results can be used to design optimized, precise and stable transimpedance amplifiers with low-noise value. The measured capacitance value was 10 pF which is low enough to simulate various real-world applications. Three commercially available, off-the-shelf operational amplifiers with different peripheral passive components were employed for computer based analysis. The designed transimpedance amplifiers are suitable to connect with capacitance extraction circuits which use analog or digital demodulation techniques.

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High resolution processing of position sensor with amplitude modulated signals of servo drive

Cited by 3 publications

References 8 publications

Principles and Methods of Servomotor Control: Comparative Analysis and Applications

Principles and Methods of Servomotor Control: Comparative Analysis and Applications

Demodulation of Angular Position and Velocity from Resolver Signals via Chebyshev Filter-Based Type III Phase Locked Loop

Analysis and design of a transimpedance amplifier based front-end circuit for capacitance measurements

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