Design and closed-loop control of a piezoelectric actuator

Rusu, C.; Besoiu, Sorin; Tătar, Mihai Olimpiu

doi:10.1088/1757-899x/1018/1/012002

Cited by 3 publications

(4 citation statements)

References 6 publications

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“…It is known that the closed-loop control eliminates the nonlinearities such as creep and hysteresis from the piezo actuator. 5,6…”

Section: Basic Measurementsmentioning

confidence: 99%

“…8 show that the amount of hysteresis is not significant because closed-loop control is implemented for the FSM. It is known that the closed-loop control eliminates the nonlinearities such as creep and hysteresis from the piezo actuator 5 , 6 …”

Section: Implementation Of Fsm In Aispmentioning

confidence: 99%

“…3,4 On the other hand, the shortcomings of piezo actuator is the inherent hysteresis of piezo material and the nonlinearity of strain gauge sensor (SGS), which feeds the displacement of piezo actuator back. Hysteresis can be eliminated when the closed control loop is implemented, 5,6 and the nonlinearity of SGS needs to be measured and complemented.…”

Section: Introductionmentioning

confidence: 99%

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Image stabilization of airborne inertial stabilization platform using fast steering mirror

Yoon,

Kim,

Choi

et al. 2024

Opt. Eng.

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One of the most important missions of an airborne inertial stabilization platform (AISP) is to acquire the image of the target with high resolution. It is challenging for the AISP to acquire such high-quality images because the AISP is continuously exposed to a significant level of vibration from the airplane, which is transformed into exogenous disturbance torque. As a consequence, the AISP suffers line-of-sight jitter that undermines the image quality. Although the conventional mass stabilization system is capable of rejecting exogenous disturbance torque only within a low frequency band, the introduction of a fast steering mirror (FSM) can significantly expand the disturbance rejection capacity. This paper describes how the introduction of the FSM improves the image stabilization capacity. On top of the conventional mass stabilization system of gimbaled mechanism with inertial sensor feedbacks, we implement the FSM that covers high frequency band within the optical path from the telescopes of the AISP to its image sensor. A high gain FSM controller is designed through the loop-shaping method and applied to the piezo-electric actuator driven FSM, which shows a sufficiently high bandwidth for rejecting the exogenous disturbance of our interest. The results from both actuation data and acquired images demonstrate the effectiveness of the FSM in the image stabilization of the AISP.

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“…It is known that the closed-loop control eliminates the nonlinearities such as creep and hysteresis from the piezo actuator. 5,6…”

Section: Basic Measurementsmentioning

confidence: 99%

Section: Implementation Of Fsm In Aispmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Image stabilization of airborne inertial stabilization platform using fast steering mirror

Yoon,

Kim,

Choi

et al. 2024

Opt. Eng.

View full text Add to dashboard Cite

show abstract

“…However, this approach requires complicated modeling and accurate system identification, both of which can vary depending on the piezoelectric material and actuator design. Another common method features a real-time closed-loop controller with an additional displacement sensor [16]- [18]. However, the response speed of the closed-loop increase the cost, size, and complexity of the positioning system [13], [19].…”

Section: Introductionmentioning

confidence: 99%

Astigmatic Detection System With Feedback Mechanism for Calibrating Driving Waveform of Piezoelectric Actuators

Liao,

Guo,

Tan

et al. 2023

IEEE Trans. Instrum. Meas.

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Piezoelectric actuators are used extensively in precision measurement, manufacturing, and manipulation owing to their high resolution, rapid response, and considerable force output. However, the nonlinear characteristics of piezoelectric materials, including hysteresis and creep, increase the complexity to achieve accurate positioning. Common methods rely on creating an inverse model of the actuator to enable linear movement. This study presents a novel calibration method based on an astigmatic detection system for directly measuring the calibrated driving waveform. This method can be applied to various types of piezoelectric actuators and does away with the need for complicated modeling and parameter identification. The experiment section demonstrates the calibration process of a piezoelectric XYZ scanner. The test results reveal that the linearity of the XYZ scanner, driven by the calibrated driving waveforms, closely approximates that of a commercial closedloop nanopositioner. Additionally, atomic force microscopy This work was financially supported by the National Science and Technology Council of Taiwan (MOST 111-2221-E-002-162 and NSTC 112-2221-E-002-246) and the LEO Foundation (Grant No. LF-OC-20-000370).

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LSTM-Based Model Predictive Control of Piezoelectric Motion Stages for High-Speed Autofocus

Yan

DiMeo

Sun

et al. 2023

IEEE Trans. Ind. Electron.

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Design and closed-loop control of a piezoelectric actuator

Cited by 3 publications

References 6 publications

Image stabilization of airborne inertial stabilization platform using fast steering mirror

Image stabilization of airborne inertial stabilization platform using fast steering mirror

Astigmatic Detection System With Feedback Mechanism for Calibrating Driving Waveform of Piezoelectric Actuators

LSTM-Based Model Predictive Control of Piezoelectric Motion Stages for High-Speed Autofocus

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