Design and Implementation of High-Precision Control System of Focus Alignment of Near-Infrared Laser for Fire Detection

2014 ◽  
Vol 7 (11) ◽  
pp. 13-24
Author(s):  
Jae-Hwan Jeon ◽  
Myoung-Ho Kim ◽  
Se-woon Choe ◽  
Gwan-Hyung Kim ◽  
Am-Suk Oh
Keyword(s):  
Control System ◽  
High Precision ◽  
Near Infrared ◽  
Fire Detection ◽  
Infrared Laser ◽  
Precision Control ◽  
Design And Implementation

scholarly journals Fourier transform vibrational spectroscopy of D2+ by few-cycle near-infrared laser pulses

2019 ◽  
Vol 205 ◽  
pp. 03010
Author(s):  
Toshiaki Ando ◽  
Atsushi Iwasaki ◽  
Kaoru Yamanouchi
Keyword(s):  
Fourier Transform ◽  
Vibrational Spectroscopy ◽  
High Precision ◽  
Vibrational Level ◽  
Probe Pulse ◽  
Near Infrared ◽  
Strong Field ◽  
Laser Pulses ◽  
Infrared Laser ◽  
Pump And Probe

By strong-field Fourier transform spectroscopy using intense pump and probe few-cycle laser pulses, the vibrational level separations of D2+ were determined with high precision by taking advantage of the dressed-state formation by the probe pulse.

scholarly journals A High-Precision Control System of DC Motor Based On DSP

2011 ◽  
Vol 15 ◽  
pp. 573-577 ◽  
Author(s):  
Chen Song ◽  
Wang Lei ◽  
Xu YeFeng
Keyword(s):  
Control System ◽  
High Precision ◽  
Dc Motor ◽  
Precision Control

Spring Force Compensation for Bond Head

2011 ◽  
Vol 317-319 ◽  
pp. 1711-1716
Author(s):  
Lei Zhou ◽  
Jian Gang Li ◽  
Ze Xiang Li
Keyword(s):  
Control System ◽  
Steady State ◽  
High Precision ◽  
High Speed ◽  
Precision Control ◽  
Loop Control ◽  
Identification Method ◽  
Spring Force ◽  
Force Compensation ◽  
State Error

A bond head with spring bearing has steady-state error problem in position loop control. To maintain high speed and high precision control, a spring force compensator is proposed in this paper. Firstly, the system is modeled and the problem is stated. Then, a close loop identification method for the spring force is advised. The compensator is also modeled and compared with the traditional controller. In the experiment part, the result shows the new control system with spring force compensator works well.

Digital Control System Design of Carving Machine Based on DSP

2012 ◽  
Vol 503-504 ◽  
pp. 1343-1346
Author(s):  
Zhong Jin Ni ◽  
Liang Fang ◽  
Mao Jun Chen
Keyword(s):  
Control System ◽  
High Precision ◽  
Digital Control ◽  
Control Method ◽  
Control System Design ◽  
Digital Control System ◽  
Servo Motor ◽  
System Operation ◽  
Precision Control ◽  
Motor Controller

A digital control system of high-precision carving machine is presented in this paper. According to the requirements of high-precision caving machine, a servo motor controller based on the field orientated control (FOC) strategy is applied. Thus the high-precision control system base on DSP of electronic carving machine is realized. The results of system operation are shown that the control system and the servo motor controllers can run steadily and precisely. The system also represent that inter - connected controls parameters of this system were correct and valid, the control method was proper and effective

Measurement of transient near-infrared laser pulse wavefront with high precision by radial shearing interferometer

2007 ◽  
Vol 275 (1) ◽  
pp. 173-178 ◽  
Author(s):  
Dong Liu ◽  
Yongying Yang ◽  
Junmiao Weng ◽  
Xiaomin Zhang ◽  
Bo Chen ◽  
...  
Keyword(s):  
Laser Pulse ◽  
High Precision ◽  
Near Infrared ◽  
Infrared Laser

High Precision Control System Design and Implementation of Outer-Rotor Permanent Magnet Motor with Dual Magnetic Sensors

2014 ◽  
Vol 494-495 ◽  
pp. 1462-1467
Author(s):  
Rong Li ◽  
Hai Qiao ◽  
Chi Zhang ◽  
Wen Tai Qu ◽  
You Yong Liao
Keyword(s):  
Control System ◽  
Permanent Magnet ◽  
High Precision ◽  
Permanent Magnet Synchronous Motor ◽  
Peak Torque ◽  
Magnetic Sensors ◽  
Measuring System ◽  
Precision Control ◽  
Control Precision ◽  
Outer Rotor

The paper propose an outer-rotor permanent magnet synchronous motor (PMSM) with peak torque of 3000N.m. The position measuring system based on CPLD and dual magnetic sensor is developed. This system can handle two channel signals obtained from two sensor heads, and provides correct and reliable position feedback signals for the motor control. According to the mathematical model of the PMSM, full digital high precision control system with triple feedback closed loops are designed and implemented in experimental evaluation. The test results validate that the system is feasible and the control precision can reach 1.5 arc-second.

Sign in / Sign up

Export Citation Format

Share Document