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The non judicious application of a particular class of pesticides-organophosphates (OPs) to control agricultural pest has become a serious environmental issue leading to soil and subsequently surface & ground water pollution. The environmental concerns regarding persistence of organophosphates and toxic metabolites in soil and ground water has stimulated the research to develop rapid and sensitive...
MIL-101-Fe (Materials of Institute Lavoisier) nanoscale-metal organic frameworks (NMOFs) were synthesized by solvothermal method with constant heating at 200°C in silicon oil bath. The as prepared MIL-101-Fe nanoparticles are observed to have particle size in the range of 200–210 nm with multiple shape morphology. Further as prepared MIL-101-Fe are functionalized by incorporating amine group into...
In this paper a sliding mode control law is developed based on reduced order mathematical model of the pneumatic actuator for fast, accurate and inexpensive system with excellent tracking performance. Only one sensor, potentiometer is used thereby making the system very inexpensive. Application of Robust Exact Differentiator (Levant differentiator) is utilized for deriving the information of two states...
This paper presents the control of a gas metal arc welding (GMAW) system using one of the higher order sliding mode control algorithms, the super twisting controller, which is a continuous control and a superior control with its extreme robustness property. A nonlinear multi input multi output (MIMO) system model has been considered here for the design of the super-twisting controllers. The control...
Gas metal arc welding (GMAW) is the most popular industrial welding process today, preferred for its versatility, speed and relative ease of adapting to robotic automation. This process has been used extensively by many industrial environments especially, the automobile industry. The advantages of automated welding process with feedback controllers include increased productivity, consistency in welding...
In this paper a sliding mode control law is developed based on Multi-rate Output Feedback strategy, wherein output is sampled at a faster rate than the input and is succesfully implemented on pneumatic actuator for fast, accurate and inexpensive system with excellent tracking performance. Only one sensor, potentiometer is used thereby making the system very inexpensive. Use of this technique eradicates...
Power electronics achieves forward and backward compatibility in electrical domain. Arc welding process needs lateral compatibility for ease of use, utility etc. It needs coherent effort of technique and technology. Efficient arc welding process needs fine and fast dynamic control of energy flow for efficiency, weld quality, productivity, reduced fume generation rate etc. Any mismatch in compatibility...
Stability, performance and reliability together they define features of a product. Optimization is possible when right topology is used. Series resonant and parallel resonant topologies are traditionally being used for control of induction heating plant. It is necessary to zero down on topology for optimal performance in induction heating for wide range (power and frequency) applications. This paper...
An algorithm for ideal sliding mode control of low inertia motor is discussed. The algorithm has been successfully tested through simulation as well as practical implementation.
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