Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Publication
- Publication Type
Articles 1 - 12 of 12
Full-Text Articles in Engineering
Algorithm For The Functioning Of The Robot's Mechatronic System, Nodira Batirdjanovna Alimova, Bekmurod Bayotovich Yusupov
Algorithm For The Functioning Of The Robot's Mechatronic System, Nodira Batirdjanovna Alimova, Bekmurod Bayotovich Yusupov
Chemical Technology, Control and Management
Currently, the introduction of mechatronics and robotics into modern technologies, including rural industry, which are based on different types of mechatronic modules, is relevant. The article discusses the functioning algorithm of the electro-pneumatic multi-position mechatronic system of an intelligent robot. The mechatronic system under consideration is an integrated complex of electro-pneumatic elements, electronic elements and computer technology, with constant dynamic changes in energy and information between them, united by a common automatic control system. The main distinctive feature of this mechatronic system is increased positioning accuracy and high traction forces.
Pneumatic Latched Demultiplexer Circuit For Controlling Multi-Actuator Soft Robots, Arsh Noor Amin
Pneumatic Latched Demultiplexer Circuit For Controlling Multi-Actuator Soft Robots, Arsh Noor Amin
Master’s Theses
This thesis presents a novel method for controlling multi-actuator soft robots using pneumatic latched demultiplexer circuits implemented with monolithic membrane valves. The pneumatic circuits are designed to address the problems of heavy dependence on hard electrical components and lack of feasible multi-actuator soft robotic systems that limit the potential applications of soft robotics. The proposed pneumatic demultiplexers reduce the number of solenoid valves and electrical components required to drive soft robotic systems, making soft robot control mechanisms more compliant, scalable, and versatile. The thesis demonstrates the design, fabrication, and testing of 4-bit and n-bit pneumatic demultiplexer circuits that can control …
Strategies And Techniques For Fabricating Mems Bistable Thermal Actuators., Dilan Ratnayake
Strategies And Techniques For Fabricating Mems Bistable Thermal Actuators., Dilan Ratnayake
Electronic Theses and Dissertations
Bistable elements are beginning to appear in the field of MEMS as they allow engineers to design sensors and actuators which require no electrical power and possess mechanical memory. This research focuses on the development of novel strategies and techniques for fabricating MEMS bistable structures to serve as no electrical power thermal actuators. Two parallel strategies were explored for the design and fabrication of the critical bistable element. Both strategies involved an extensive material study on candidate thin film materials to determine their temperature coefficient of expansion and as-deposited internal stress properties. Materials investigated included titanium tungsten, Invar, silicon nitride …
Exploring How Haptics Contributes To Immersion In Virtual Reality, Dimcho Zhelyazkov Karakashev, Hong Z. Tan
Exploring How Haptics Contributes To Immersion In Virtual Reality, Dimcho Zhelyazkov Karakashev, Hong Z. Tan
The Summer Undergraduate Research Fellowship (SURF) Symposium
Virtual Reality (VR) has been around for more than fifty years but the technology hasn’t reached practical usability until very recently. With the current head-mounted display (HMD) technology and an abundance of investment in VR startups, we have finally reached at the point where it is possible to simulate complex virtual environments that feel immersive. A major problem with virtual reality is that everything looks real but you can not touch and feel virtual objects. We are focusing on developing a device that will allow users to feel what they touch in VR. We developed a hand-held interface and an …
An Internet Of Things (Iot) Robotic Light Switch, Arsal Habib
An Internet Of Things (Iot) Robotic Light Switch, Arsal Habib
Honors Theses
The purpose of this project was to design and build an Internet of Things (IoT) Robotic Light Switch. This light switch would act as a complementary device to existing toggle switches and equip them with typical smart device features such as remote control (via Wi-Fi), digital voice assistant control, motion-sensing and integration with other smart home solutions (such as IFTTT). All these features would be supported by a dedicated web page that would also be able to view the usage statistics of the device. This device is aimed at offering users an extremely easy-to-install home automation solution that needs no …
Linear Actuator Using Shape Memory Wire With Controller, Robert Ryan Vallance, Bruce L. Walcott, James E. Lumpp Jr., Aravind Balasubramanian, Osamah A. Rawashdeh
Linear Actuator Using Shape Memory Wire With Controller, Robert Ryan Vallance, Bruce L. Walcott, James E. Lumpp Jr., Aravind Balasubramanian, Osamah A. Rawashdeh
Electrical and Computer Engineering Faculty Patents
A linear actuator is provided, comprising a housing defining an interior channel, a stop extending from the housing and displaceable relative to the housing, and at least one wire formed of a shape-memory alloy, the wire being attached at a first end to the stop and at a second end to the housing. When heated to a predetermined temperature, the wire applies a pulling force to the stop to cause the stop to slide in a first direction into the housing interior channel. A spring located in the housing interior channel applies a biasing force to the stop in a …
Two-Dimensional Microscanners With T-Shaped Hinges And Piezoelectric Actuators, Wenyu Song
Two-Dimensional Microscanners With T-Shaped Hinges And Piezoelectric Actuators, Wenyu Song
LSU Master's Theses
For a wide range of application areas such as medical instruments, defense, communication networks, industrial equipment, and consumer electronics, microscanners have been a vibrant research topic. Among various fabrication methodologies, MEMS (microelectromechanical system) stands out for its small size and fast response characteristics. In this thesis, piezoelectric actuation mechanism is selected because of its low voltage and low current properties compared with other mechanisms, which are especially important for the target application of biomedical imaging. Although 1- and 2-dimensional microscanners with piezoelectric actuators have been studied by several other groups, this thesis introduces innovative improvements in design of the piezoelectric …
Throughput And Power Consumption Comparisons Of Zigbee-Based And Ism-Based Implementations Of Wsan, Rosula Sj Reyes, Jose Claro N. Monje, Marc Ericson C. Santos, Lorlynn A. Mateo, Roma Lynne G. Espiritu, John Vianney Isiderio, Carlos Miguel M. Lacson, Ray Edwin T. Ocfemia
Throughput And Power Consumption Comparisons Of Zigbee-Based And Ism-Based Implementations Of Wsan, Rosula Sj Reyes, Jose Claro N. Monje, Marc Ericson C. Santos, Lorlynn A. Mateo, Roma Lynne G. Espiritu, John Vianney Isiderio, Carlos Miguel M. Lacson, Ray Edwin T. Ocfemia
Electronics, Computer, and Communications Engineering Faculty Publications
Wireless sensor and actuator networks have expanding applications which requires better throughput, power efficiency and cost effectiveness. This study intends to contribute to the growing pool of knowledge on WSAN especially in the design for novel applications such as image or video over WSANs, and solar energy and RF energy harvesting for the WSAN nodes. Two basic scalable wireless sensor and actuator networks were implemented and characterized in terms of throughput and power consumption. The two WSANs are the Zigbee-based WSAN which is based on the IEEE 802.15.4 protocol, and the ISM-based Zigbee which makes use of the industrial, scientific …
Oxidase-Coupled Amperometric Glucose And Lactate Sensors With Integrated Electrochemical Actuation System, Jongwon Park, Chang-Soo Kim, Minsu Choi
Oxidase-Coupled Amperometric Glucose And Lactate Sensors With Integrated Electrochemical Actuation System, Jongwon Park, Chang-Soo Kim, Minsu Choi
Electrical and Computer Engineering Faculty Research & Creative Works
Unpredictable baseline drift and sensitivity degradation during continuous use are two of the most significant problems of biosensors including the amperometric glucose and lactate sensors. Therefore, the capability of on-demand in situ calibration/diagnosis of biochemical sensors is indispensable for reliable long-term monitoring with minimum attendance. Another limitation of oxidase enzyme-based biosensors is the dependence of enzyme activity on the background oxygen concentration in sample solution. In order to address these issues, the electrolytic generation of oxygen and hydrogen bubbles were utilized 1) to overcome the background oxygen dependence of glucose and lactate sensors and 2) to demonstrate the feasibility of …
Automated Oxidase-Coupled Amperometric Microsensor With Integrated Electrochemical Actuation System For Continuous Sensing Of Saccharoids, Yadunandana Yellambalase, Jongwon Park, Chang-Soo Kim, Minsu Choi, Nohpill Park, Fabrizio Lombardi
Automated Oxidase-Coupled Amperometric Microsensor With Integrated Electrochemical Actuation System For Continuous Sensing Of Saccharoids, Yadunandana Yellambalase, Jongwon Park, Chang-Soo Kim, Minsu Choi, Nohpill Park, Fabrizio Lombardi
Electrical and Computer Engineering Faculty Research & Creative Works
Recent developments for biosensors have been mainly focused on miniaturization and exploratory use of new materials. It should be emphasized that the absence of a novel "in-situ self-calibration/diagnosis technique" that is not connected to an external apparatus is a key obstacle to the realization of a biosensor for continuous use with minimum attendance. To address this deficiency, a novel needle-type biosensor system with fully automated operations is being developed, in which a novel oxidase-coupled amperometric sensor with oxygen depleting/generating actuator is interfaced with an electrochemical instrument and a perfusion system. Labview virtual instrument has been also developed to oversee the …
Glucose Oxidase (God)-Coupled Amperometric Microsensor With Integrated Electrochemical Actuation System, Jongwon Park, Chang-Soo Kim, Minsu Choi, Shanrui Zhang
Glucose Oxidase (God)-Coupled Amperometric Microsensor With Integrated Electrochemical Actuation System, Jongwon Park, Chang-Soo Kim, Minsu Choi, Shanrui Zhang
Electrical and Computer Engineering Faculty Research & Creative Works
Recent developments for biosensors have been mainly focused on miniaturization and exploratory use of new materials. It should be emphasized that the absence of a novel "in-situ self-calibration/diagnosis technique" that is not connected to an external apparatus is a key obstacle to the realization of a biosensor for continuous use with minimum attendance. In order to address this issue, a novel solid-state glucose oxidase-coupled amperometric biosensor with integrated electrochemical actuation system has been designed and validated. There are two key components of the proposed glucose biosensor: solid-state GOD-coupled thin-lm amperometric sensing element and O2 depleting/saturating built-in electrochemical actuator. The …
Intelligent Control Of Nonlinear Systems With Actuator Saturation Using Neural Networks, Wenzhi Gao
Intelligent Control Of Nonlinear Systems With Actuator Saturation Using Neural Networks, Wenzhi Gao
Doctoral Dissertations
Common actuator nonlinearities such as saturation, deadzone, backlash, and hysteresis are unavoidable in practical industrial control systems, such as computer numerical control (CNC) machines, xy-positioning tables, robot manipulators, overhead crane mechanisms, and more. When the actuator nonlinearities exist in control systems, they may exhibit relatively large steady-state tracking error or even oscillations, cause the closed-loop system instability, and degrade the overall system performance. Proportional-derivative (PD) controller has observed limit cycles if the actuator nonlinearity is not compensated well. The problems are particularly exacerbated when the required accuracy is high, as in micropositioning devices. Due to the non-analytic nature of the …