Medical Auto-Injector Design

2012 ◽  
Vol 236-237 ◽  
pp. 819-823
Author(s):  
Jie Hou ◽  
Jing Jun Tang ◽  
Jun Zuo ◽  
Wen Hui Fan ◽  
Shu Wang Chen
Keyword(s):  
Medical Staff ◽  
Simple Structure ◽  
Stepping Motor ◽  
Logic Control ◽  
Injection Dose ◽  
Acceleration And Deceleration ◽  
Core Components ◽  
Auto Injector ◽  
Injector Design ◽  
Injection Function

A kind simple structure and convenient operation of automatic injector is designed in the paper. It can be placed on the desk with the friendly interface. Its core components are AT89C51 and stepping motor. SCM can be controlled by the corresponding key to send the logic control signal through software programming. In order to achieve the automatic injection function under different speeds at 20 ml, 30 ml and 50 ml liquid level, automatic injector is drove by the different statuses of stepping motor, such as open and stop, acceleration and deceleration, turning and reversal, etc. For driving stepping motor more better, the drive chip ULN2003 is used. The speed, the turning direction and the injection dose of stepping motor is displayed with LED. It realizes the well-proportioned injection, avoids the error caused by artificial operation and uncertainty, and reduces the pressure of the medical staff.

Design of Intelligent Winding Machine for Tassel Thread Based on Stepping Motor

2012 ◽  
Vol 189 ◽  
pp. 317-320
Author(s):  
Hong Shen ◽  
Feng Shao ◽  
Jun Peng Xu
Keyword(s):  
Simple Structure ◽  
Intelligent System ◽  
Rotation Speed ◽  
High Reliability ◽  
Low Cost ◽  
Production Quality ◽  
Stepping Motor ◽  
Precise Control ◽  
Winding Machine ◽  
Thread Problem

On account of the end splitting and dropping thread problem for domestic winding machine during tassel thread production process at present, an intelligent system with subdivision driving module TB6560AHQ and SANYO stepping motor was designed, which adopted the ATMEL89S52 MCU as the core controller. The system achieved precise control of some parameters during the course of tassel thread winding such as torque, direction of rotation, speed, cycle laps, twist, etc. It also reduced the worker’s labour intensity and improved the production quality and efficiency of the tassel manufacturing, moreover, this winding machine has the advantages of simple structure, high torque, high reliability and low cost. It can meet the various control requirements for different tassel thread winding and have a considerable market prospect.

Dynamic Analysis of One-Link Robot Arm Driven by Stepping Motor Using Microstep Drive and Harmonic Reduction Gear

2007 ◽  
Vol 1 (1) ◽  
pp. 20-26
Author(s):  
Hiroyuki Kojima ◽  
◽  
Kengo Motomura ◽  
Yoshifumi Kuwano ◽  
Keiichi Abe ◽  
...  
Keyword(s):  
Equations Of Motion ◽  
Reduction Gear ◽  
Robot Arm ◽  
Stepping Motor ◽  
Transient Vibration ◽  
Two Phase ◽  
Trajectory Tracking Control ◽  
Harmonic Reduction ◽  
Acceleration And Deceleration ◽  
The One

In this paper, first, taking into consideration stepping motor torque and harmonic reduction gear flexibility, the equations of motion of a one-link robot arm driven by a harmonic reduction gear and a hybrid stepping motor using a microstep drive are derived. The stepping motor is excited by two-phase excitation. Then, the numerical simulations of the one-link robot arm's dynamic response for four-division microstep and full-step drives have been carried out, and it is confirmed theoretically that the amplitudes of the vibrating torque of the stepping motor for the microstep drive are considerably smaller than that for the full-step drive, and the transient vibrations of the stepping motor in acceleration and deceleration periods can be reduced using microstep drive. Furthermore, the experiments of the trajectory tracking control of the one-link robot arm have been carried out, and the effects of the microstep drive on the transient vibration reduction of the stepping motor are demonstrated.

Study of the Floor Typed Abrasive Water Jet Spatial Machining Robot

2011 ◽  
Vol 487 ◽  
pp. 478-481
Author(s):  
Rong Guo Hou ◽  
Chuan Zhen Huang ◽  
H.T. Zhu ◽  
H.L. Liu ◽  
B. Zou
Keyword(s):  
Simple Structure ◽  
Three Dimensional ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Stepping Motor ◽  
Abrasive Water Jet Machining ◽  
Machining Robot ◽  
Precise Movement

A floor typed spatial robot of abrasive water jet machining is designed, which can be applied to machine three-dimensional complicated work-pieces. Its merits are simple structure and flexible moving. The structure and transmission programmer are discussed in detail. The working range of the abrasive water jet robot is analyzed to meet the need of the various sized work-pieces. The motion of the each joint is realized by means of various transmission programmers. The precise movement of the robot is realized by the stepping motor, and the required power of the robot is calculated.

scholarly journals A New Starting Curve Based on Acceleration and Deceleration Theory of Stepping Motor

2020 ◽  
Vol 1549 ◽  
pp. 042108
Author(s):  
Yawei Si ◽  
Lili Zhang ◽  
Yepeng Du ◽  
Haoyu Wang
Keyword(s):  
Stepping Motor ◽  
Acceleration And Deceleration

A FPGA-Based Motion Control IC for X-Y Table

2011 ◽  
Vol 88-89 ◽  
pp. 67-71
Author(s):  
Bao Shan You ◽  
Kai Feng Liu ◽  
Feng Lian Zeng ◽  
Li Ying Pei
Keyword(s):  
Motion Control ◽  
High Performance ◽  
Control Algorithm ◽  
Low Cost ◽  
Logic Device ◽  
Embedded Processor ◽  
Logic Control ◽  
Field Programmable ◽  
Acceleration And Deceleration ◽  
New Generation

The new generation of Field Programmable Gate Array (FPGA) technology enables to embed a processor to construct a System on a Programmable Chip( SoPC). A stepper motion control IC for X-Y table using SoPC technology is proposed in this thesis. The proposed motion control IC contains two modules. One module performs the functions of schedule and logic control. Due to the need of complicated control algorithm, it is implemented by software using Nios II embedded processor. The other module performs the functions of interpolation, acceleration and deceleration. Due to the need of high performance, this module is implemented by Programmable Logic Device (PLD) in FPGA. The use of SoPC technology can make the motion control IC of X-Y table more compact, high performance and low cost .

The Design of Constant Pressure Water Supply Control System Based on S7-200 PLC

2013 ◽  
Vol 753-755 ◽  
pp. 1665-1669
Author(s):  
Man Rong Xing ◽  
Jie Zhang ◽  
Xiao Dong Zhang
Keyword(s):  
Water Supply ◽  
Constant Pressure ◽  
Frequency Converter ◽  
Control Variable ◽  
Automatic Regulation ◽  
Logic Control ◽  
Pressure Water ◽  
Core Components ◽  
Power Frequency ◽  
The Given

IN tall buiding’s constant pressure water supply system with PLC and frequency converter logic control, PLC is used for logic control and frequency converter for pressure regulation . PLC and frequency converter which are the core components of the system track changes on the deviation of the pressure in a pipe with the given pressure,through the PLC internal PID operational, it can control variable frequency and power frequency switching and automatic control the number of inputting pumps and speed of the motor to realize closed loop automatic regulation voltage variable water supply, It can achieve the purpose of controlling the flow of water while maintaining constant pressure.

A Comparison of Simple Structure Rotation Criteria in Temporal Exploratory Factor Analysis for Event-Related Potential Data

Methodology ◽  
2019 ◽  
Vol 15 (Supplement 1) ◽  
pp. 43-60 ◽  
Author(s):  
Florian Scharf ◽  
Steffen Nestler
Keyword(s):  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Simple Structure ◽  
Ground Truth ◽  
Event Related Potential ◽  
Suitable Alternative ◽  
Factor Rotation ◽  
Rotation Methods ◽  
Simple Structure Rotation ◽  
Temporal Overlap

Abstract. It is challenging to apply exploratory factor analysis (EFA) to event-related potential (ERP) data because such data are characterized by substantial temporal overlap (i.e., large cross-loadings) between the factors, and, because researchers are typically interested in the results of subsequent analyses (e.g., experimental condition effects on the level of the factor scores). In this context, relatively small deviations in the estimated factor solution from the unknown ground truth may result in substantially biased estimates of condition effects (rotation bias). Thus, in order to apply EFA to ERP data researchers need rotation methods that are able to both recover perfect simple structure where it exists and to tolerate substantial cross-loadings between the factors where appropriate. We had two aims in the present paper. First, to extend previous research, we wanted to better understand the behavior of the rotation bias for typical ERP data. To this end, we compared the performance of a variety of factor rotation methods under conditions of varying amounts of temporal overlap between the factors. Second, we wanted to investigate whether the recently proposed component loss rotation is better able to decrease the bias than traditional simple structure rotation. The results showed that no single rotation method was generally superior across all conditions. Component loss rotation showed the best all-round performance across the investigated conditions. We conclude that Component loss rotation is a suitable alternative to simple structure rotation. We discuss this result in the light of recently proposed sparse factor analysis approaches.

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