Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function

10.3791/59799 ◽  
2019 ◽  
Author(s):  
Yuji Matsukawa ◽  
Yuki Ide ◽  
Kazuo Umemura
Keyword(s):  
Temperature Control ◽  
Control Function ◽  
Microscope Stage

Designed of Wireless Intellectualized Temperature Control System in Tobacco Preserve Based on Fuzzy-PID

2013 ◽  
Vol 416-417 ◽  
pp. 890-894
Author(s):  
Xiao Hui Guo
Keyword(s):  
Temperature Control ◽  
Control Method ◽  
Control Function ◽  
Temperature Control System ◽  
Pid Controllers ◽  
Fuzzy Pid ◽  
Single Chip ◽  
Control Effect ◽  
Set Up ◽  
The Individual

Tobacco Warehousing is chiefly applied to preserve the tobacco that is separated into leaf and stem so that the tobacco moisture is controlled at the range of technology demand.The present control method of tobacco save is that the references of every PID control link are set up and adjusted by human experience. So, the control effect varies with the individual and the output tobacco moisture can't maintain stable.The fuzzy-PID temperature system is based on CC2430 single chip. It includes the power source, the manipulative algorithm, the temperature examination , the correspondence of up PC and the output-control of the switch value and so on. Computer takes the parameter deviation and the deviation change as input, and the PID controllers parameters of ΔKp, Δki, ΔKd as output. The sub program realized the corresponding events by completing zone bit and zone bit judgment. The main program realized temperature control function by calling the wireless micro-controller sends a signal to the charged unit

scholarly journals Investigation on the Ignition of Self-Regulating Heating Cables due to Overheating

2021 ◽  
Vol 35 (6) ◽  
pp. 100-104
Author(s):  
Young-Cheon Yu ◽  
Seung-Wook Jee
Keyword(s):  
Temperature Control ◽  
Heat Storage ◽  
Control Function ◽  
Short Circuit ◽  
The Self ◽  
Experimental Temperature ◽  
Surface Conditions ◽  
Reproduction Test ◽  
Specific Temperature ◽  
Statistical Yearbook

Owing to the self-regulating heating cables installed to prevent freeze-up, hundreds of fires are reported annually. According to the Fire Statistical Yearbook of 2020, provided by the National Fire Agency of Korea, a total of 2,245 fires occurred due to seasonal equipment, of which 240 were caused by heating wires. It is reported that the fires due to the self-regulating heating cables are mainly caused by short circuit, heat storage, poor contact, and electric leakage. Herein, the possibility of ignition in self-regulating heating cables owing to overheating is investigated. Test samples were prepared according to the IEC 60738 standard, and the resistance characteristics and surface conditions were analyzed at varying temperatures. It was found that the self-temperature control function of these cables was lost at a specific temperature. In addition, the ignition of self-regulating heating cables was confirmed through a fire reproduction test at the experimental temperature.

Autocontrol of Water Condenser Based on PID Controller

2011 ◽  
Vol 225-226 ◽  
pp. 186-189
Author(s):  
Xing Hua Yang ◽  
Ting Rui Liu ◽  
Ai Qin Sun
Keyword(s):  
Temperature Control ◽  
Pid Control ◽  
Pid Controller ◽  
Controller Design ◽  
Control Function ◽  
Control Process ◽  
Step Response ◽  
Outlet Temperature ◽  
Pid Controller Design ◽  
The Heat Balance

To maintain the outlet temperature at the desired set-point, a high-order outlet temperature control model is established for a water condenser, and different PID controller design methods are applied to its temperature control process. The control function model is based on the analysis of the heat balance equation and the heat transfer rate equation. The design process of three different PID control methods, including Ziegler-Nichols Method, Modified Ziegler–Nichols Formula and the Optimum PID Controller, together with the unit step response consequence are provided and compared, and the numerical simulation results show that the Optimum PID Controller has a favorable control performance.

Fuzzy PID Temperature Control System of Reaction Kettle Based on PLC

2013 ◽  
Vol 336-338 ◽  
pp. 423-427
Author(s):  
Qi Chen ◽  
Lin Zhi Liao ◽  
Hong Rong Chen ◽  
Ni Yan Wu
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Control Function ◽  
Field Application ◽  
Temperature Control System ◽  
Fuzzy Pid ◽  
Fuzzy Pid Control ◽  
Time Varying Delay ◽  
Plc Control ◽  
The Impact

Adopt a fuzzy PID control algorithm in order to solve the control difficulty which caused by the uncertainty lag of temperature control in chemical reaction kettle. The algorithm is realized by utilizing PLC system function. The system takes full advantage of the features of PLC control system, such as flexibility, reliability, and strong capacity of resisting disturbance. Field application result shows that the system eliminates the impact of time-varying delay on control function well. It has good robustness.

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