Papers by Author: Y. Qin

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Authors: Zhen Zhou, L.B. Li, Y. Qin, D.Z. Ma, B. Niu
Abstract: Firstly this paper introduces gray relation analysis, and then it draws various reasons of electromagnetic flowmeter malfunction in combination with data provided by one company. And the paper calculates the probabilities of the various reasons adopting classical statistics, and equalizes these failure rate data to get sequence difference, and then obtains grey incidence coefficient and correlation degree. Then the paper sorts these correlation degrees to confirm the influence degree of the failure modes. Finally, the bleaching information required is obtained.
Authors: Zhen Zhou, Z.H. Guan, J. Luo, L.J. Wang, Y. Qin, G.F. Sun
Abstract: According to the Biot-Savart's Law, the principle of the detecting system which measures the grade of the iron concentrate is analysed in this paper. It carries out an analysis of influence of inductance sensor coil structure parameters on the performance of sensor. The finite element model of the air core coil is established and analysis of finite element simulation is done to inductance sensors by using orthogonal method. According to different structural parameters, the relation of magnetic permeability of the iron concentrate and the inductance of the sensor coil can be established. Moreover, the effect of the sensor coil’s parameter on the linearity and the sensitivity of the sensor can also be determined. All the above provide a reference for the design of coil structure parameter of the inductance sensors.
Authors: Y. Qin, Xue Hui Wang, Ming Jun Feng, Zhen Zhou, L.J. Wang
Abstract: A data fusion algorithm was established for estimating the state of target tracking system with multi-type sensor. Through Kalman filter regarding the multi-sensors to computer goal estimated value, it can obtain estimation value of goal at moment. And mean square deviation of fusion estimation value was smaller than single sensor's mean square deviation. The simulation results indicated that synchronisms data fusion method was effective to the multi-target tracking problem. Asynchronous multi-sensor fusion process can obtain good control effect in the practice control process.
Authors: Zhen Zhou, L.N. Zhang, Y. Qin, D.Z. Ma, B. Niu
Abstract: Characteristics of field failure data are analyzed in this paper. The failure data and sales record of LZL-type mass flowmeter are used to infer life distribution of this conduct. The lines can be fitted in coordinates of six distribution using least square and the residual sum of squares are compared, the minimum correspond is the best distribution type. The results show that the life distribution style of this conduct is the two parameter exponential distribution, which is the base to analyze and predict failure development, research failure mechanism and draw up maintenance policy.
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