Electromagnetic tomography has potential value in process measurement. The frontier of electromagnetic tomography system is the sensor array. Owing to the excited signal acting on the sensor array directly, the excite...
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This paper introduces an intelligent roots flow meter based on ARM Cortex-M3 processor and μC/OS-II embedded real-time operating system. ARM Cortex-M3 processor is an industry-leading 32-bit processor with lower powe...
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In this paper, the evaluation methods of flow standard facility in every regulations were compared and analyzed. Analysis of the two performance parameters of the flow stability within cumulative time and the flow sta...
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In this paper, Siemens Power Plant automationcontrol System (SPPA-T3000) based on IGCC power plant is described. The principle and process of IGCC power plant are first introduced, followed by the introduction of the...
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In this paper, we propose a method for designing continuous gain-scheduled robust H_∞ observer on a class of extended stochastic nonlinear systems subject to time delay and actuator saturation. Initially, gradient li...
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ISBN:
(纸本)9781457710957
In this paper, we propose a method for designing continuous gain-scheduled robust H_∞ observer on a class of extended stochastic nonlinear systems subject to time delay and actuator saturation. Initially, gradient linearization procedure is applied to describe such extended nonlinear systems into several model-based linear systems. Next, a robust linear H_∞ observer is designed to such linear stochastic models. Subsequently, a convex hull set is investigated and sufficient condition is derived in terms of feedback observer to determine whether a given initial condition belongs to an ellipsoid invariant set. Finally, continuous gain-scheduled approach is employed to design continuous nonlinear observers on the entire extended nonlinear jump system. A simulation example is given to illustrate the effectiveness of developed techniques.
This paper introduces the development situation of the industrial design through the application of virtual reality technology to realize the innovation of industrial product design. We learn the virtual reality techn...
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With the turbine flow sensor applications increasingly widespread, the requirements of the turbine flow sensor accuracy are also higher. In this paper, the simulation model was built in strict accordance with the expe...
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This paper introduces a new-type turbine flow meter. The concept is to apply magnetic suspension bearing to reform turbine flow meter. Beginning with the structure and working principle of magnetic suspension bearing,...
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In order to address the bubble formation and movement in air-water two-phase flow,single bubble rising in stagnant water is experimentally studied by digital image *** are released individually from the submerged orif...
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In order to address the bubble formation and movement in air-water two-phase flow,single bubble rising in stagnant water is experimentally studied by digital image *** are released individually from the submerged orifices with different diameters(1.81 mm,2.07 mm,2.98 mm,3.92 mm)at different detachment *** are recorded by a high-speed video camera and processed by digital image processing technique. The factors impacting the formed volume of bubble are *** experimental results showed that a threshold of gas flow rate(400 mm 3 ·s- 1)divides the bubble formation into two regimes:the constant volume regime and the growing volume *** for the growing volume regime,the surface tension is taken into *** bubble volume is consisted of two parts:the surface tension impacting part and the gas volume flow rate impacting *** improved correlation for bubble volume prediction is developed for the two regimes and better coincidence with the experiment data than the previous models is obtained.
In order to solve the problem that mechanical pointer type flowmeter cannot be calibrated automatically, based on the photoelectric conversion principle, a non-contact meter pointer automatic identification sensor was...
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