Study on High Precision Control Scheme of Ceramic Ferrule Concentricity Grinder

2014 ◽  
Vol 635-637 ◽  
pp. 1266-1270 ◽  
Author(s):  
Yan Jin ◽  
Hui Lin

The paper analyzes the precision coaxial processing requirements and the characteristics of high automatic online compensation, and builds the electric control system based on Delta series products. The system uses a bus controller and absolute encoders servo constitute nearly closed-loop servo control system, combined with torque limiting grading feeding, dressing real-time compensation, stable and high-speed precision machining ceramic ferrule.

2013 ◽  
Vol 457-458 ◽  
pp. 1381-1385 ◽  
Author(s):  
Sheng Yong Lei

Automatic production line includes machinery, electric, control, communication and other multi-disciplinary technologies and knowledge. It is an ideal training platform for students majored in mechatronics and electric automation. In the designing of platform, however, the difficulty lies in the precise delivery and position control of linear guide rail system. To address this problem, this paper aims at designing an AC servo-control system based on PLC, AC servo driver, servo motor and human-machine interface (HMI) and elaborates the principle of servo-control system, circuit design and software design. The system will achieve reliable delivery and precise positioning with position error less than 1 mm, which, with great application value, will meet the actual demand from industrial production.


2015 ◽  
Vol 742 ◽  
pp. 540-545
Author(s):  
Xing Hong Li ◽  
Xian Xiang ◽  
Xiao Guang Du

With the rapid development of computer technology, it is widely used in the control field, including advanced alarm plane,cruise missile,radar,O-E theodolite,etc. The increasing complex and real-time arithmetic was applied in the ATP(Acquire Tracking Pointing) system of the control system for boosting the track、captring and pointing precision of O-E(photo-electric) theodolite, so it demanded the servo controller must complete more and more operations in shorter time. While the actual O-E theodolite accomplished the capture and tracking etc. based on PC104 system, so designed the servo control system based on embedded chip as CPU from the practicality, not only decreases the cubage of the system, but also increases the reliability and precision.


2010 ◽  
Vol 40-41 ◽  
pp. 252-256
Author(s):  
Yong Li Chen ◽  
Ying Wei Jin ◽  
Yong Li Chu ◽  
Xia Zhao

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 ).


1992 ◽  
Vol 262 (2) ◽  
pp. F320-F325 ◽  
Author(s):  
B. Nafz ◽  
P. B. Persson ◽  
H. Ehmke ◽  
H. R. Kirchheim

An electropneumatic servo-control system is described that can reduce and control arterial blood pressure in experimental animals. The device has been proved useful in the analysis of pressure-dependent physiological processes and allows the following two modes of operation: 1) a conventional open-loop setting that will reduce arterial pressure to a preselected set point and 2) a closed-loop mode that enables an adjustment to a dynamic pressure set point (i.e., the controlled pressure is reduced to a constant value below a reference pressure). A pneumatic servo-control mechanism was chosen to provide minimal control latency. The accuracy of the system under physiological conditions is well within +/- 1 mmHg. The device can be useful in a number of studies demanding a precise regulation of local arterial pressure, such as experiments on blood flow autoregulation, arterial baroreceptor reflexes, and all experiments involving the study of pressure-dependent excretory and incretory functions of the kidney. The closed-loop setting is useful for studying physiological feedback systems.


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