Calibration and Characterization of a Magnetic Positioning System Using a Robotic Arm

2019 ◽  
Vol 68 (5) ◽  
pp. 1494-1502 ◽  
Author(s):  
Francesco Santoni ◽  
Alessio De Angelis ◽  
Isaac Skog ◽  
Antonio Moschitta ◽  
Paolo Carbone
Keyword(s):  
Robotic Arm ◽  
Positioning System

Design and Characterization of a Portable Ultrasonic Indoor 3-D Positioning System

2015 ◽  
Vol 64 (10) ◽  
pp. 2616-2625 ◽  
Author(s):  
Alessio De Angelis ◽  
Antonio Moschitta ◽  
Paolo Carbone ◽  
Massimo Calderini ◽  
Stefano Neri ◽  
...  
Keyword(s):  
Positioning System

scholarly journals A Universal Positioning System for Coupling Characterization of SEM and AFM

Scanning ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Jinchao Liu ◽  
Andi Wang ◽  
Ji Yang ◽  
Shiheng Yin ◽  
Xianfeng Yang
Keyword(s):  
Working Condition ◽  
Target Position ◽  
Experimental Result ◽  
Positioning System ◽  
Hyphenated Technique ◽  
Specimen Holder ◽  
Atomic Force ◽  
Comprehensive Information ◽  
Application Potential

Hyphenated techniques, providing comprehensive information in various aspects such as constituent, structure, functional group, and morphology, play an important role in scientific research. Nowadays, coupling characterization of the same position in microscale is in great need in the field of nanomaterial research and exploration. In this article, a new hyphenated technique was developed to facilitate the coupling characterization of atomic force microscope (AFM) and scanning electron microscope (SEM) by designing a universal positioning system. The system consisted of a specimen holder with coordinate grids and a software for converting the coordinate values of the same point to fit SEM, specimen holder, and AFM system. In working condition, the coordinates of the labeled points and target position were firstly extracted from the SEM operation software, then converted into the numerical values adapted to the specimen holder itself, and finally transformed into the coordinates matching the AFM system. The experimental result showed that a retrieving rate of 96% was achieved for a spherical target with a diameter of 1 μm in a 30   μ m × 30   μ m square. The hyphenated technique is a universal, accurate, efficient, and financially feasible method in microanalysis field and has great application potential.

scholarly journals Construcción y control de posición de un prototipo de brazo robótico de dos grados de libertad

2012 ◽  
pp. 92-101
Author(s):  
Oscar Darío Zabaleta Laverde
Keyword(s):  
Degrees Of Freedom ◽  
Robotic Arm ◽  
Pid Controllers ◽  
Tuning Method ◽  
Dc Motors ◽  
Starting Point ◽  
Reaction Curve ◽  
Physical Construction ◽  
Made In

La construcción física y el control electrónico del brazo robótico de dos grados de libertad, tiene como punto de partida la aproximación del sistema a las dinámicas de plantas de primer orden, donde a partir de la caracterización de la curva de reacción o comportamiento del brazo robótico, es posible la implementación de controladores PID con el método de sintonización de Ziegler y Nichols, que es sencillo y efectivo para el buen desempeño del prototipo expuesto en el presente artículo. En cuanto a la construcción del brazo robótico, es necesario resaltar el diseño y la implementacióndel acondicionamiento que requieren los actuadores del prototipo (Motorreductores DC) y los sensores que requiere el brazo (encoders de cuadratura), ya que deben ir acordescon el diseño y la construcción mecánica del brazo robótico, cuya estructura está elaborada en resina que se caracteriza por ser un material liviano y resistente al deterioro.Es necesario resaltar el acople de dos motores DC a la estructura mecánica del brazo robótico, cuya ubicación es indispensable para su correcta movilidad. Palabras claveBrazo robótico, controlador PID, lazo abierto y cerrado, actuadores y sensores. AbstractThe physical construction and electronic control of the robotic arm of two degrees of freedom has as a starting point the approach of the system to the plants dynamics of first order, where from the characterization of reaction curve or behavior of the robotic arm is possible the implementation of PID controllers with Ziegler and Nichols tuning method, that is simple and effective for the good performance of the prototype presented in this article. With regard to the construction of the robotic arm, it is necessary to highlight the design and implementation of the conditioning that requires the actuators of prototype (DC gearmotors) and sensors which requires the arm (squaring encoders), inasmuch as they must be consistent with the design and the mechanical constructionof the robotic arm, whose structure is made in resin that is characterized as a lighter material and resistant to decay.It is necessary to highlight the docking of two DC motors to the mechanical structure of the robotic arm, whose location is essential for its proper mobility.KeywordsRobotic arm, PID controller, open and closed loop, actuators and sensors. 

Design and characterization of a compact nano-positioning system for a portable transmission x-ray microscope

2013 ◽  
Vol 84 (12) ◽  
pp. 123702 ◽  
Author(s):  
En-Te Hwu ◽  
Evgeny Nazaretski ◽  
Yong S. Chu ◽  
Huang-Han Chen ◽  
Yu-Sheng Chen ◽  
...  
Keyword(s):  
Positioning System ◽  
X Ray
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