Error-driven decision and error condition word for continuous hot press flocking control system

2016 ◽  
Vol 26 (4) ◽  
pp. 324 ◽  
Author(s):  
Qu Wu ◽  
Bo Lv ◽  
Yaqiu Liu ◽  
Liangkuan Zhu
Keyword(s):  
Control System ◽  
Hot Press ◽  
Error Condition

Superplastic Titanium Tanks for Propulsion System of Satellites

2007 ◽  
Vol 551-552 ◽  
pp. 43-48 ◽  
Author(s):  
Eiichi Sato ◽  
S. Sawai ◽  
K. Uesugi ◽  
T. Takami ◽  
K. Furukawa ◽  
...  
Keyword(s):  
Control System ◽  
Propulsion System ◽  
Hot Press ◽  
Orbital Control ◽  
Forming Precision ◽  
High Flexibility ◽  
Reaction Control System

Institute of Space and Astronautical Science (ISAS/JAXA) in collaboration with Mitsubishi Heavy Industries (MHI) has developed fuel and gas tanks for reaction control system and orbital control system of satellites; A tank is fabricated through welding of two thin, hemi-spherical or conical parts, which are fabricated by superplastic blow forming. Mass-productivity is not an important factor but the forming precision and flexibiliry in the process are important for this application. ISAS and MHI, therefore, developed a new blow-forming technique, which has high flexibility in terms of tank size because it requires a furnace but not a hot-press machine. Some typical propulsion tanks fabricated through this process are presented.

Research on Application of Fuzzy PID Control Based on PLC in Hot Press Control System

2014 ◽  
Vol 1006-1007 ◽  
pp. 689-692
Author(s):  
Jing Jie Ma ◽  
Xiao Li Zhang ◽  
He Ying Bian
Keyword(s):  
Control System ◽  
Pid Control ◽  
Fuzzy Pid ◽  
Hot Press ◽  
Technical Process ◽  
Control Effect ◽  
Fuzzy Pid Control ◽  
System Experiment ◽  
Simulation Results ◽  
Research On Application

This research constructed a hot press control system according to the hot-press technical process of wood-based panel, and applied the fuzzy control and traditional PID control to this system. Experiment and simulation results showed that the control effect of the new method is optimal.

A controller for safe, convenient operation of LaB6 emitters on electron-beam instruments

1983 ◽  
Vol 41 ◽  
pp. 408-409
Author(s):  
W. J. Abramson ◽  
H. W. Estry ◽  
L. F. Allard
Keyword(s):  
Electron Beam ◽  
Control System ◽  
Thermal Shock ◽  
Appropriate Care ◽  
Electron Guns ◽  
Tungsten Filaments ◽  
Order Of Magnitude ◽  
Main Components

LaB6 emitters are becoming increasingly popular as direct replacements for tungsten filaments in the electron guns of modern electron-beam instruments. These emitters offer order of magnitude increases in beam brightness, and, with appropriate care in operation, a corresponding increase in source lifetime. They are, however, an order of magnitude more expensive, and may be easily damaged (by improper vacuum conditions and thermal shock) during saturation/desaturation operations. These operations typically require several minutes of an operator's attention, which becomes tedious and subject to error, particularly since the emitter must be cooled during sample exchanges to minimize damage from random vacuum excursions. We have designed a control system for LaBg emitters which relieves the operator of the necessity for manually controlling the emitter power, minimizes the danger of accidental improper operation, and makes the use of these emitters routine on multi-user instruments.Figure 1 is a block schematic of the main components of the control system, and Figure 2 shows the control box.

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