The Laser Focus Position Control System Based on Motion Controller

2014 ◽  
Vol 644-650 ◽  
pp. 636-638
Author(s):  
Yun Li Zhang
Keyword(s):  
Control System ◽  
Laser Cutting ◽  
Position Control ◽  
Tracking System ◽  
Displacement Sensor ◽  
Focus Position ◽  
Motion Controller ◽  
Automatic Tracking ◽  
Laser Focus

Laser cutting focus position automatic tracking system of control precision directly affects the quality of laser cutting processing. There is a low anti-jamming capability, poor quality,poorer openness and poorer dynamic response short comings in the inductive sensor or the capacitive sensor and constitute of the single chip microcomputer control system. This paper introduces a laser focus automatic tracking system based on motion controller, using optical encoder as displacement sensor, use the motion controller of master-slave tracking (electronic gear) function implementation focus position error compensation quickly. Improve the quality of system control, openness, the stability and reliability.

scholarly journals DESAIN SISTEM KENDALI UMPAN BALIK STATE PADA KASUS KONTINYU UNTUK MEJA KERJA CNC

2019 ◽  
Vol 20 (2) ◽  
pp. 32
Author(s):  
Fakhruddin Mangkusasmito ◽  
Tsani Hendro Nugroho
Keyword(s):  
Control System ◽  
Rise Time ◽  
Manufacturing Industry ◽  
Position Control ◽  
Control Method ◽  
Tracking System ◽  
Settling Time ◽  
Numerical Control ◽  
Pole Placement ◽  
Work Table

Fakhruddin Mangkusasmito, Tsani Hendro Nugroho in this paper explain that One of the important control system in the manufacturing industry is the position control. Mainly in the Computer Numerical Control (CNC) machine, work-table motion control system is used to regulate work-table movements when the machine process a workpieces on it. On standard machines, work-table movements are two axes (X-Y), which is driven by a motor and lead-screw. The discussion in this research only focus on one axis assuming that the systems on both axes are the same and independent. In this research, MATLAB is used to describe the behaviour of the system and also to design appropriate control system in continuos system using state feedback linear controller such as pole placement , tracking system, full order compensator and reduced order compensator. The goal is to obtain a fast response with a rapid rise time and settling time to a step command, while not exceeding an overshoot of 5%. The specification are than a percent overshoot equal to1%, 0,05s settling time and 0,03s rise time. The performance of each control methods are simulated and analyzed to decide the best suit control method for the systems with such criteria. And the result verify that using tracking system controller method achieve such specification with 0% overshoot, 0,04s settling time and 0,028s rise time.

The Study of Hydraulic Valve Position Control Based on PLC Controller

2014 ◽  
Vol 651-653 ◽  
pp. 928-931
Author(s):  
Chun You Zhang ◽  
Cong Rui Wang
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Closed Loop ◽  
Position Control ◽  
Angular Displacement ◽  
Hydraulic Drive ◽  
Displacement Sensor ◽  
Prototype Model ◽  
Valve Position ◽  
Hydraulic Valve

With the growing shortage of water today, in order to control the flow of pipe conveyance, it is essential for further study of automatic control valves, especially the automatic control technology of control valve. In this paper, by using programmable control and signal transmission technologies etc. a prototype model of hydraulic valve position control is constructed. Prototype model is designed as the closed-loop of position control system, by using high-precision angular displacement sensor detecting the position of the valve plate, converting the output signal of sensor into an industrial process signal 4-20mA with the low-drift transmitter chip XTR101, and with modular PLC as system control center, using three-phase inverter controlling the steering and speed of motor and cooperating with closed pump control system for hydraulic drive, it achieves the closed-loop control hydraulic valve position. This paper provides some technical support for the better use of water resources.

Effect of high-frequency orbital and vertical oscillations of the laser focus position on the quality of the cut surface in a thick plate by laser beam machining

2015 ◽  
Vol 40 ◽  
pp. 112-123 ◽  
Author(s):  
Yoshihiro Morimoto ◽  
Dongjue He ◽  
Wataru Hijikata ◽  
Tadahiko Shinshi ◽  
Takahiro Nakai ◽  
...  
Keyword(s):  
Laser Beam ◽  
High Frequency ◽  
Thick Plate ◽  
Focus Position ◽  
Laser Beam Machining ◽  
Laser Focus ◽  
Cut Surface

Finite Element Analysis of the Frame of Straightening Machine with Twelve Rolls for Tubes

2013 ◽  
Vol 345 ◽  
pp. 557-560
Author(s):  
Bai Sen Zhang ◽  
Jin Chun Song ◽  
Guang An Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Control System ◽  
Normal Condition ◽  
Position Control ◽  
Control Technology ◽  
Element Analysis ◽  
Distribution Laws ◽  
Strength And Stiffness

The frame of a straightening machine is a body of the equipment, and bears all loads exerting on the machine. It is necessary for the frame to have strong strength and stiffness so that the machine can work under normal condition. What is more, because control technology for a hydraulic or servo system is applied to this equipment, it is also necessary to understand the variation laws of frame under loads, so that the effects of pressure protection and position control of rollers could be better and the laws could be provided for designing control system. In this paper, the deformation maps of the frame under loads are got by finite element analysis, distribution laws on stress and displacement of the frame are obtained when it is working, and suggestions are proposed for improving the functions of frame and quality of tubes.

Hybrid Force/Position Control Hardware System Design and Force Servo Control Realization

2011 ◽  
Vol 317-319 ◽  
pp. 685-689 ◽  
Author(s):  
Hai Tao Tang ◽  
Shun Pan Liang ◽  
Jian Tao Yao ◽  
Lian He Guo ◽  
Yong Sheng Zhao
Keyword(s):  
Control System ◽  
Position Control ◽  
Control Method ◽  
Servo Control ◽  
Motion Controller ◽  
Hardware System ◽  
Basic Language ◽  
Library Function ◽  
Parallel Machine Tool ◽  
And Control

The hardware control system of the 5-UPS/PRPU PMT (parallel machine tool) with redundant actuation was reconstructed to realize its hybrid force/position control, which was based on the primary “IPC+PMAC motion controller” system mode. Meanwhile, more perfect open type PMT control platform was constructed. Visual Basic language was used to realize the force servo control of the redundant limb and the relevant experiment was completed in the primary CNC system, combining with the PAMC motion controller library function. The results show that the force servo control strategy is exact and the newly designed hardware control system is effective, these results also provide feasible hardware basis and control method to realize the hybrid force/position control.

Active Disturbance Rejection Control for Hydraulic Position Control System of High-Quality Cold Rolling Mill

2012 ◽  
Vol 572 ◽  
pp. 114-119
Author(s):  
Xiao Fei Xiang ◽  
Zhe Wang ◽  
Fei Zhang ◽  
Li Zhao
Keyword(s):  
Control System ◽  
Cold Rolling ◽  
Disturbance Rejection ◽  
Rolling Mill ◽  
Position Control ◽  
Tracking System ◽  
Cold Rolling Mill ◽  
Stability Margins ◽  
Active Disturbance Rejection ◽  
Position Control System

Active disturbance rejection controller (ADRC) instead of the conventional PID controller in the hydraulic position control system is proposed to satisfy high accuracy and speed requirements in cold rolling mill. Based on the simplified model, frequency-domain analysis of the two kinds of controllers is performed. The results show that ADRC produces better performances, such as bandwidth, stability margins. Because of the extended state observer (ESO) that can estimate and compensate the tracking system in real time, ADRC reduces the dependence on accurate mathematical model, improves anti-disturbance capability of the system, and maintains good dynamic characteristics. The simulation results verified the effect of the conclusion.

The Study & Application on Shipborne Satellite Antenna Automatic Tracking System

2010 ◽  
Vol 40-41 ◽  
pp. 252-256
Author(s):  
Yong Li Chen ◽  
Ying Wei Jin ◽  
Yong Li Chu ◽  
Xia Zhao
Keyword(s):  
Control System ◽  
Real Time ◽  
Tracking System ◽  
Control Unit ◽  
Antenna System ◽  
Servo Control ◽  
Continuous Change ◽  
Automatic Tracking ◽  
Satellite Antenna ◽  
Servo Control System

For the shipborne satellite antenna system，owing to the continuous change of the carrier’s position and pose as the time passing, we must conduct real-time measurement on the pose of satellite antenna, so that the satellite can be aimed through servo control system. In this paper, the hardware and software about the shipborne satellite antenna system are introduced. Three-dimensional closed-loop servo control system which is made of three kinds of pose sensors is implemented to isolate the links between the antenna pose and the carrier’s position and pose. FSK serial communication is adopted to realize a reliable control commands and data transmission between the control unit above the deck and the control unit under the deck. Conical spiral scan based on the best AGC signal realizes automatic tracking satellite and locking it. The result of the examination shows that the pointing of antenna is of steadiness, precision(the point precision is less than 0.3 degrees), real time and speediness(the capture time is less than 25 seconds ).

Design of Stepping Motor Position Closed Loop Control System Based on PLC

2011 ◽  
Vol 127 ◽  
pp. 126-129
Author(s):  
Li Hong Wang ◽  
Yue Ling Zhao
Keyword(s):  
Control System ◽  
High Speed ◽  
Closed Loop ◽  
Position Control ◽  
Displacement Sensor ◽  
Closed Loop Control ◽  
Stepping Motor ◽  
Loop Control ◽  
Closed Loop Control System ◽  
Loop Control System

A stepping motor position closed loop control system was designed, which adopts displacement sensor to examine the position of the load. The system’s hardware constitute was given here, and the pulse control project was given at the same time. It uses the high-speed pulse output of PLC to export the adjustable frequency pulse. The adjustment of the frequency based on the error of initial value and actual value. On one hand, it can realize fast and accurate position control. On the other hand, it can overcome the weakness of losing step. Thus makes the system have better control function.

Study on Solar Photovoltaic Tracking System Based on Servo Control

2014 ◽  
Vol 1070-1072 ◽  
pp. 56-59
Author(s):  
Wei Jing Zhang
Keyword(s):  
Control System ◽  
Solar Energy ◽  
Fossil Fuels ◽  
Tracking System ◽  
Solar Panel ◽  
Photovoltaic System ◽  
Utilization Efficiency ◽  
Human Beings ◽  
Automatic Tracking ◽  
The One

The demand on resource is increasing when human beings have entered the 21st century, as the one-time fossil fuels get mined-out, such as coal, natural gas and petroleum the energy crisis has become a central issue. Because the solar energy density is small and the solar orientation changes over time, it’s difficult to collect, transmit and store the solar energy. Therefore, the utilization of solar energy is improved by using the technology of high-power condenser and automatic tracking, and the scope of solar energy application is also expanded. Tracking photovoltaic system be made of sun sensor, automatic tracking control system, the tracking actuator, solar panel, battery. With the guidance of the sensor, the control system can accurately track the position of the sun, so that the solar panel is always vertical to sunlight, to maximize use of eventually reaching solar efficiency. Data show that the utilization efficiency of solar energy can be improved about 10%.

The Research of Bionic Robot Dynamic Target Tracking System

2010 ◽  
Vol 33 ◽  
pp. 332-336 ◽  
Author(s):  
P. Wang ◽  
X.F. Ye ◽  
S.C. Kang ◽  
J.L. Xin
Keyword(s):  
Target Tracking ◽  
Tracking System ◽  
Robot Vision ◽  
Wiener Filtering ◽  
Outer Contour ◽  
Automatic Tracking ◽  
Bionic Robot ◽  
Dynamic Target ◽  
Particle Filter Algorithm

In order to improve the quality of the bionic robot vision tracking, the new automatic tracking algorithm system is proposed in this paper. Based on the completed system hardware design and implementing scheme, the scene noise is removed by adaptive wiener filtering. Through the improved sequential particle filter algorithm, the dynamic target tracking is realized. The experiment result shows that the improved algorithm system still can lock the dynamic target accurately under the condition of that the outer contour of target changing and the partial occlusion existing.

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