Imaging performance of trolling mode atomic force microscopy: investigation of effective parameters

Sajjadi, Mohammadreza; Chahari, Mahmood; Pishkenari, Hossein Nejat

doi:10.1007/s00419-022-02129-x

Cited by 7 publications

(2 citation statements)

References 47 publications

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“…Optimization of the scanning parameters is one of the paths for increased A formance. Usually, the optimization strategy is subject to AFM operator experi skills, and the optimization algorithm is based on the database [20] or a math model [21], taking known data, such as the expected geometrical shape and mater erties of a sample and the probe geometry, and calculating optimal scanning pa to produce the required resolution of the image within an adequate time and wi imum of image artifacts [22]. Optimization of the scanning parameters is one of the paths for increased AFM performance.…”

Section: Background Of the Atomic Force Microscopementioning

confidence: 99%

Characteristics and Functionality of Cantilevers and Scanners in Atomic Force Microscopy

Dzedzickis,

Rožėnė,

Bučinskas

et al. 2023

Materials

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In this paper, we provide a systematic review of atomic force microscopy (AFM), a fast-developing technique that embraces scanners, controllers, and cantilevers. The main objectives of this review are to analyze the available technical solutions of AFM, including the limitations and problems. The main questions the review addresses are the problems of working in contact, noncontact, and tapping AFM modes. We do not include applications of AFM but rather the design of different parts and operation modes. Since the main part of AFM is the cantilever, we focused on its operation and design. Information from scientific articles published over the last 5 years is provided. Many articles in this period disclose minor amendments in the mechanical system but suggest innovative AFM control and imaging algorithms. Some of them are based on artificial intelligence. During operation, control of cantilever dynamic characteristics can be achieved by magnetic field, electrostatic, or aerodynamic forces.

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Section: Background Of the Atomic Force Microscopementioning

confidence: 99%

Characteristics and Functionality of Cantilevers and Scanners in Atomic Force Microscopy

Dzedzickis,

Rožėnė,

Bučinskas

et al. 2023

Materials

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show abstract

“…Satellite attitude control plays a significant role in most space missions. Therefore, the development of an accurate and stable controller is an essential part of conducting a space mission [1][2][3][4][5][6][7][8]. The most advanced satellite attitude control techniques use the concept of quaternion feedback [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

An Adaptive Neuro-Fuzzy Model for Attitude Estimation and Control of a 3 DOF System

et al. 2022

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In recent decades, one of the scientists’ main concerns has been to improve the accuracy of satellite attitude, regardless of the expense. The obvious result is that a large number of control strategies have been used to address this problem. In this study, an adaptive neuro-fuzzy integrated system (ANFIS) for satellite attitude estimation and control was developed. The controller was trained with the data provided by an optimal controller. Furthermore, a pulse modulator was used to generate the right ON/OFF commands of the thruster actuator. To evaluate the performance of the proposed controller in closed-loop simulation, an ANFIS observer was also used to estimate the attitude and angular velocities of the satellite using magnetometer, sun sensor, and data gyro data. However, a new ANFIS system was proposed that can jointly control and estimate the system attitude. The performance of the proposed controller was compared to the optimal PID controller in a Monte Carlo simulation with different initial conditions, disturbance, and noise. The results show that the proposed controller can surpass the optimal PID controller in several aspects including time and smoothness. In addition, the ANFIS estimator was examined and the results demonstrate the high ability of this designated observer. Consequently, evaluating the performance of PID and the proposed controller revealed that the proposed controller consumed less control effort for satellite attitude estimation under noise and uncertainty.

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Nonlinear numerical analysis and averaging method applied atomic force microscopy with viscoelastic term

Ribeiro

Курина²,

Tusset

et al. 2022

Arch Appl Mech

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Imaging performance of trolling mode atomic force microscopy: investigation of effective parameters

Cited by 7 publications

References 47 publications

Characteristics and Functionality of Cantilevers and Scanners in Atomic Force Microscopy

Characteristics and Functionality of Cantilevers and Scanners in Atomic Force Microscopy

An Adaptive Neuro-Fuzzy Model for Attitude Estimation and Control of a 3 DOF System

Nonlinear numerical analysis and averaging method applied atomic force microscopy with viscoelastic term

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