Article
Chemistry, Analytical
Yixuan Wu, Weizheng Yuan, Yanjun Xue, Honglong Chang, Qiang Shen
Summary: A VCF-based mode-matching gyroscope is proposed to improve device performance by establishing a mode-matching closed-loop system without a quadrature-nulling loop, reducing quadrature coupling.
Article
Instruments & Instrumentation
Ruiqi Shi, Junjian Zhang, Zilong Feng, Kai Fan, Mengmeng Kong, Jiajun Han, Zhihua Feng
Summary: A new type of tuning fork gyroscope is proposed in this study to improve sensitivity by using orthogonal thin-walled round holes in the driving and sensing directions. The gyroscope has a simple structure, high reliability, and effectively improves sensitivity.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Chemistry, Analytical
Derya Unsal Ozturk, Aydan M. Erkmen
Summary: This paper investigates the application of a proxy-based sliding mode controller in MEMS gyroscopes. Experimental results demonstrate the evident superiority of the proxy-based controller compared to traditional sliding mode controllers.
Article
Nanoscience & Nanotechnology
Jiangkun Sun, Sheng Yu, Yongmeng Zhang, Qingsong Li, Xiang Xi, Kun Lu, Xuezhong Wu, Dingbang Xiao
Summary: This paper presents a novel real-time calibration method for capacitive displacement detection in whole-angle gyroscopes. By utilizing the harmonic components of detective signals for calibration, the method effectively improves the performance of MEMS whole-angle gyroscopes, reducing angle drift and increasing scale-factor nonlinearity to the best reported levels. The innovative calibration method shows promise in addressing traditional issues and achieving significant performance enhancements.
MICROSYSTEMS & NANOENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Vannam Giap, Hongson Vu, Quangdich Nguyen, Shyh-Chour Huang
Summary: This paper proposes a novel disturbance observer based on free-chattering sliding-mode control to compensate disturbances and uncertainties in MEMS gyroscopes. The proposed method uses sliding-phase control and a low-pass filter to track reference values and eliminate disturbance coupling. Simulation results demonstrate the effectiveness of the proposed method.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2022)
Article
Chemistry, Analytical
Lin Xuan, Mingyang Lu, Jing Liu, Shuwen Guo, Dacheng Xu
Summary: This paper describes a novel mode-switchable gyroscope that can switch between rate and rate-integrating modes. It introduces a precession angle tracking algorithm and a vibrating amplitude control method to ensure stable switching and high accuracy output.
Article
Chemistry, Analytical
Changda Xing, Xinning Wang, Zishuo Wang, Yuchen Wang, Chong Li
Summary: This paper provides a detailed analysis of the stability boundary in in-run frequency split calibration under a dual-mode gyro scheme and proposes an enhanced solution to remove the limitation of this stability boundary.
Article
Engineering, Mechanical
Mehran Rahmani, Sangram Redkar
Summary: This research proposes a new fractional robust data-driven control method to control a nonlinear dynamic MEMS gyroscope model. The Koopman theory is used to linearize the nonlinear dynamic model and the Koopman operator is obtained using the DMD method. The proposed compound controller, which combines Koopman-FOSMC and FOPID, outperforms other controllers in terms of performance.
NONLINEAR DYNAMICS
(2023)
Article
Engineering, Mechanical
Mehran Rahmani, Sangram Redkar
Summary: This research proposes a new fractional robust data-driven control method for controlling a nonlinear dynamic MEMS gyroscope model. By adopting Koopman theory to linearize the model and using fractional sliding mode controller (FOSMC) and compound controller design, the performance and robustness can be improved.
NONLINEAR DYNAMICS
(2023)
Article
Engineering, Electrical & Electronic
Lu Jia, Guowei Han, Zhenyu Wei, Chaowei Si, Jin Ning, Fuhua Yang, Weihua Han
Summary: This paper presents a MEMS tuning fork gyroscope that reduces acceleration output in both drive and sense directions. The structure adjusts mechanical vibration modes through internal and external lever coupling, effectively suppressing external shocks and accelerations. Two comparative tuning fork gyroscope structures with traditional coupling in drive and sense directions are designed. Modal simulations demonstrate that the mode ordering effectively suppresses acceleration output in both directions. Results show that the new structure can suppress acceleration output by over 80%, consistent with theoretical calculations presented in finite element simulations.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2023)
Article
Chemistry, Analytical
Liangqian Chen, Tongqiao Miao, Qingsong Li, Peng Wang, Xuezhong Wu, Xiang Xi, Dingbang Xiao
Summary: This study proposes a method to compensate for the temperature drift of gyroscopes, which combines mode reversal and real-time multiple regression compensation. The method significantly improves the zero-bias stability and zero-bias variation of the gyroscopes, and effectively suppresses the zero-bias drift during the startup phase.
Article
Chemistry, Analytical
Pengfei Xu, Chaowei Si, Yurong He, Zhenyu Wei, Lu Jia, Guowei Han, Jin Ning, Fuhua Yang
Summary: This study presents a novel high-Q dual-mass tuning fork microelectromechanical system (MEMS) gyroscope using innovative design and packaging techniques, achieving high Q-factors, wide measurement range, and high resolution. The symmetrically decoupled proof masses and lever structure, combined with 3D packaging technology, greatly reduce thermoelastic damping and anchor loss.
Article
Engineering, Electrical & Electronic
Komal Kant, Rajan Kumar Paswan, Imteyaz Ahmad, Amar Prakash Sinha
Summary: This study discusses the research and development, design ideas, and control systems of MEMS gyroscopes, and introduces a method to improve the efficiency of gyroscopes by matching the resonance frequencies of resonators. Due to the presence of noise, navigation system design faces difficulties, while the proposed method can determine the error in the output. In order to minimize the chattering effect, second-order sliding mode control is used.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Francesca Pistorio, Muhammad Mubasher Saleem, Aurelio Soma
Summary: This paper presents a new design for a resonant mode-matched electrostatic z-axis MEMS gyroscope that minimizes cross-axis coupling between the drive and sense modes through the use of separate masses and a unique mechanical spring configuration. The design also includes a comb-drive-based electrostatic tuning for frequency mismatch compensation due to foundry process uncertainties and temperature variations during gyroscope operation.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Electrical & Electronic
Rang Cui, Ke Li, Xin Xu, Rihui Xue, Chong Shen, Yunbo Shi, Huiliang Cao
Summary: This article introduces a novel gyroscope quadrature error correction system based on quadrature force correction. The source of quadrature error in MEMS solid-state wave gyroscope is analyzed, which is mainly caused by machining errors. The gyroscope system model is established, and a quadrature error correction method is proposed and simulated. The gyroscope with the quadrature error correction system shows improved performance in a comparative test.
IEEE SENSORS JOURNAL
(2023)
Article
Automation & Control Systems
Negar Mehr, Roberto Horowitz
IEEE TRANSACTIONS ON CONTROL OF NETWORK SYSTEMS
(2020)
Article
Economics
Negar Mehr, Ruolin Li, Roberto Horowitz
Summary: This paper proposes a macroscopic model for predicting the number of vehicles that perform a bypass at a traffic diverge when taking an exit link. The bypassing maneuver is interpreted as selfish behavior of drivers, modeled as Wardrop equilibrium. The unique equilibrium of the model can be calibrated through a simple optimization problem and successfully predicts lane change maneuvers performed by vehicles.
TRANSPORTATION RESEARCH PART B-METHODOLOGICAL
(2021)
Article
Robotics
Joohwan Seo, Joonho Lee, Eunkyu Baek, Roberto Horowitz, Jongeun Choi
Summary: This study proposes a novel control design for autonomous vehicle systems that can track desired trajectories while considering safety constraints. The approach utilizes differential flatness modeling for vehicle dynamics, dynamic inversion for trajectory tracking, and a control barrier function method to enforce safety constraints. The control design is derived through the relaxation of constraints and analyzed for safety and stability using singular perturbation methods.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2022)
Proceedings Paper
Automation & Control Systems
Nikhil Potu Surya Prakash, Roberto Horowitz
Summary: A data-driven feedback control framework in the frequency domain is used to design track following controllers for multi-actuator hard disk drives. This approach allows multiple plant measurements to be directly used for designing a common controller, improving robustness and avoiding model mismatch.
Proceedings Paper
Computer Science, Artificial Intelligence
Ruolin Li, Philip N. Brown, Roberto Horowitz
Summary: This study examines a toll lane framework that unites high-occupancy vehicles and autonomous vehicles to increase traffic throughput and social mobility. Through numerical examples in optimal toll design, occupancy threshold design, and policy design, the various potential applications of this framework are clarified.
2021 IEEE INTELLIGENT TRANSPORTATION SYSTEMS CONFERENCE (ITSC)
(2021)
Proceedings Paper
Automation & Control Systems
Ruolin Li, Philip N. Brown, Roberto Horowitz
Summary: Highway on-ramps are often bottlenecks in transportation networks, exacerbated by mainline vehicles' selfish lane choices. Introducing altruistic vehicles among selfish ones can improve efficiency by minimizing altruistic costs, which are a weighted sum of travel delay and negative impact on others. Proper proportion and weight configuration of altruistic vehicles can decrease social delay or reach optimal conditions, even when uncertainties in altruistic costs are considered.
2021 AMERICAN CONTROL CONFERENCE (ACC)
(2021)
Proceedings Paper
Automation & Control Systems
Ruolin Li, Negar Mehr, Roberto Horowitz
2020 59TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
(2020)
Proceedings Paper
Automation & Control Systems
Ruolin Li, Jiaxi Liu, Roberto Horowitz
2020 AMERICAN CONTROL CONFERENCE (ACC)
(2020)
Article
Computer Science, Information Systems
Stanley W. Smith, Yeojun Kim, Jacopo Guanetti, Ruolin Li, Roya Firoozi, Bruce Wootton, Alexander A. Kurzhanskiy, Francesco Borrelli, Roberto Horowitz, Murat Arcak
Article
Engineering, Electrical & Electronic
Matthew A. Wright, Roberto Horowitz
IEEE INTELLIGENT TRANSPORTATION SYSTEMS MAGAZINE
(2020)
Proceedings Paper
Transportation Science & Technology
Matthew A. Wright, Simon F. G. Ehlers, Roberto Horowitz
2019 IEEE INTELLIGENT TRANSPORTATION SYSTEMS CONFERENCE (ITSC)
(2019)
Proceedings Paper
Transportation Science & Technology
Ruolin Li, Negar Mehr, Roberto Horowitz
2019 IEEE INTELLIGENT TRANSPORTATION SYSTEMS CONFERENCE (ITSC)
(2019)
Proceedings Paper
Automation & Control Systems
Matthew A. Wright, Roberto Horowitz, Alex A. Kurzhanskiy
PROCEEDINGS OF THE ASME 11TH ANNUAL DYNAMIC SYSTEMS AND CONTROL CONFERENCE, 2018, VOL 2
(2018)
Proceedings Paper
Automation & Control Systems
Negar Mehr, Roberto Horowitz
2018 IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
(2018)
Proceedings Paper
Automation & Control Systems
Roya Firoozi, Jacopo Guanetti, Roberto Horowitz, Francesco Borrelli
2018 IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
(2018)
Article
Engineering, Electrical & Electronic
Kehao Feng, Zhenghua Zhang, Guohua Bai, Xiuyuan Fan, Rongzhi Zhao, Xuefeng Zhang
Summary: This paper proposes a new method to accurately evaluate the high-frequency power loss of soft magnetic materials. Through a two-step calibration, the system is able to compensate for the phase angle discrepancy between the exciting current and induced voltage, enabling a higher power loss measurement frequency.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Mingfang Kang, Tong Liu, Hongmei Sun, Lin Li, Keliang Wang
Summary: In this study, the absorption performance of ambient nitrogenous toxic gases on a monolayer of blue phosphorus phase germanium selenide (GeSe) was investigated using density-functional theory calculations. The results showed that GeSe monolayer exhibits higher sensitivity and selectivity for the hazardous gas NO.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Yaqiong Niu, Zhicheng Zou, Longsheng Cheng, Chaofeng Ye
Summary: This paper proposes a novel method to stabilize the laser diode output using a close-loop control with two feedbacks. The proposed method performs better for long-time operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jiajie Li, Ying Liu, Zhen Chai, Qian Cao, Renjie Li, Yueyang Zhai
Summary: This study proposed an efficient and high-quality beam-splitting method based on a diffractive optical element, enabling multichannel SERF atomic magnetometers to achieve ultra-high consistency and sensitivity. It has significant applications in array biomagnetic measurement systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
E. Oliveira, C. Doering, H. Fouckhardt
Summary: With the development of Lab on a chip technology, fluid management using dispersed droplets has become an important approach. Electrowetting on dielectric (EWOD) is one method for droplet actuation, but it requires prior definition of droplet positions. Optoelectrowetting (OEW) goes further by allowing changes in electrical parameters through impinging light spots, without the need for predefined droplet positions. This study re-evaluates the key parameters of OEW and explores their effects on droplet actuation using numerical optimization methods.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Haipeng Wang, Zhiguo Wang, Gancheng Zhu, Shuai Zhang
Summary: A novel capacitive proximity skin was developed to improve the performance of robotics in handling liquid-filled containers. This skin features a flexible structure that can adapt to different grippers and seamlessly integrate with Robot Operating System. Experimental results demonstrated that this proximity skin achieved data-lossless detection and contactless measurement of liquid level, making it suitable for grasping operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Tsenguun Byambadorj, Xiangyu Zhao, Yutao Qin, Yogesh B. Gianchandani
Summary: In this research, a monolithically microfabricated Knudsen pump (KP) without suspended membranes was presented. These pumps offer improved mechanical robustness, wider process window, and simplified microfabrication process compared to previous designs. The experimental results matched the modeling results well, indicating the potential for monolithic integration onto complex lab-on-a-chip systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Hamed Karami, Saeed Karami Chemeh, Vahid Azizi, Hooman Sharifnasab, Jose Ramos, Mohammed Kamruzzaman
Summary: Aroma is a significant quality trait for pharmaceutical plants and their products, indicating the quality of the raw material. An electronic nose is an efficient approach for identifying and evaluating the aroma of essential oils. In this study, tarragon was dried at different temperatures and air velocities, and the purity of tarragon essential oil was evaluated using an electronic nose. Multivariate data analysis and artificial neural networks modeling were employed to quantify and classify the obtained essential oils.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Xiaoyang Duan, Dan Xu, Wenjun Jia, Ran Li, Bohao Sun, Ruitian Yan, Wenjie Zhao
Summary: Flower-like WO3/WS2 heterojunction materials constructed via a low-temperature in-situ oxidation method exhibit significant improvements in the detection of NO2 gas in gas sensors, along with good selectivity and reproducibility.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Peng Yu, Mengyang Zhang, Manqi You, Yuxi Gao, Landong Xiao, Yan Peng, Jingxia Lai, Zhouzhao Shi, Siwei Luo, Gencai Guo, Gang Guo
Summary: Recent studies have shown that two-dimensional Janus transition metal dichalcogenides (TMDs) have great potential for applications in gas sensors. By conducting first principles calculations, this study explores the potential application of Pd-doped monolayer HfSeS as gas sensor materials for detecting CO, CO2, NH3, and NO. The results demonstrate the good thermodynamical stability and reversible adsorption of these molecules on both pristine and Pd-doped HfSeS, with Pd-doped HfSeS showing higher sensitivity towards NO due to its metallic behavior upon NO adsorption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jinlan Yang, Linjiao Li, Jun Huang, Quan Zhang, Hiba Affane
Summary: This study proposes a method for large-scale aggregation of micro-particles by creating a vortex region using low-frequency oscillation. Experimental results show that this method can achieve a large aggregation area and has the advantages of low cost and low power consumption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jitendra Singh, Saurabh Kumar Gupta, Vinita
Summary: In this investigation, a Surface Acoustic Wave (SAW) formalin gas sensor was explored for low-level formalin gas sensing applications. The sensor showed stable response and high sensitivity to formalin gas concentration, making it a reliable and useful sensor for room temperature operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Junyao Wang, Yahao Liu, Huan Liu, Qi Hou, Jianxin Xu, Hongxu Pan, Jingran Quan, Yansong Chen, Hanbo Yang, Lixiang Li
Summary: A flexible electrode with a serpentine-shaped tetra-chiral structure was designed to improve the mechanical properties and prevent mechanical fracture of flexible electrodes. The research demonstrated that this structure reduced the maximum tensile stress by 87.19% compared to the existing tetra-chiral structure. The flexible electrode remained conductive even at a strain of 70% and showed resistance values of 5 ohm and 4.4 ohm at a bending angle of 180 degrees and after 1000 fold cycles. Furthermore, the flexible electrodes showed great potential in biological signal monitoring, particularly in collecting ECG and pulse signals.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Taihao Chen, Yong Fang, Mengru Zhu, Zhiwei Zhao, Wei Lei, Zhuoya Zhu, Helong Jiang
Summary: Flexible dual-spectral carbon nanodots/flexible n-silicon heterojunction photodetectors with high responsivity and detectivity are reported. These detectors show photo response in UV illumination and only in forward bias under visible illumination. The photocurrent of the device remains high even under bending strain.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
M. S. Sikandar Bathusha, Israr Ud Din, Rehan Umer, Kamran A. Khan
Summary: Graphene-based nanomaterials are used as embedded sensors to monitor fracture behavior in composite structures. This study investigates the in-situ crack propagation and fracture behavior in a glass fiber reinforced polymer composite using embedded reduced graphene oxide coated fabrics and highly conductive graphene nanoplatelet paper.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
