Earlier investigations show that the results of hazard identification (HAZID) and analysis (e.g. HAZOP or FMEA) can effectively be used for knowledge-based diagnosis of complex process systems in their steady-state op...
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The calibration curve of some metal tube rotameter has the characteristic of mutationIf the nonlinear least square method is still used as the method of linear correction, it will increase the measurement error and re...
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The calibration curve of some metal tube rotameter has the characteristic of mutationIf the nonlinear least square method is still used as the method of linear correction, it will increase the measurement error and reduce the measurement accuracyThis paper presents a Division Ordinary Least Squares Method, which can reduce errors and improve accuracyBy the algorithm comparative experiment it can be proved that the method can improve the measurement accuracy.
The velocity of solid particles in gas-solid two-phase flow is an important parameter, which can reflect the flow condition of gas-solid two-phase flow. However, it is difficult to be measured. The electrostatic senso...
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The velocity of solid particles in gas-solid two-phase flow is an important parameter, which can reflect the flow condition of gas-solid two-phase flow. However, it is difficult to be measured. The electrostatic sensor combined with correlation technique provides a proper solution to the velocity measurement of gas-solid two-phase flow. The digital signal controller dsPIC33F, which has the advantages of MCU and DSP, had been used in the design of embedded correlator. This correlator has the advantages of simple structure, good real-time performance, high reliability and low power consumption. Through the experiments on the belt electrostatic induction apparatus, this system can meet the requirement of the velocity measurement of gas-solid two-phase flow.
This paper is concerned with the stability analysis and controller design for a class of discrete-time Markovian jump systems subject to incomplete knowledge of transition probabilities. Different from the previous re...
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Nowadays, decision tree is widely used as one of the most powerful tools in data mining. However, to construct an optimization decision tree is a complete NP problem. So a new method about how to construct decision tr...
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Conductance sensor array has broadly value in the measurement of two-phase flow parameters. This paper proposes a new configuration of conductance sensors with six rectangular electrodes of same size from the pipe fac...
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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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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 designed. The signal acquisition hardware and software of the pointer identification sensor were designed also. Two flowmeters can be calibrated at the same time. It was shown by the result of experiments that automatic recognition of meter pointer, automatic signal acquisition and processing were achieved. It meets the industrial field demand of mechanical pointer type flowmeter automatic calibration.
Gas-solid two-phase flow is complicated and random, gas-solid two-phase flow standard facility is a very important method for the study of gas-solid two-phase flow problem. As to the design requirements of standard fa...
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As an important secondary energy, steam is widely used in engineering for its role of heat transfer and mechanical transmission. But steam is a complex medium, its state easily changes as the working condition changes...
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The sonic nozzle airflow standard facilities are applied widely throughout the world and can be divided into two categories, negative pressure and positive pressure methods. The latter is better than the former at cal...
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