传感器

To realize real time fault detection and diagnosis when multi sensors have faults simultaneously in the linear control system, a set of two ellipsoid confidence region s was constructed based on two ellipsoid overlap method.

双椭圆相交法可以用于多个传感器同时发生故障的线性控制系统，不仅能够快速、准确地检测出故障发生的时刻，并且能将故障定位到发生故障的传感器。

A capacitive pick off sensor is disclosed that includes at least one conductive plate connectable to a first voltage potential and adapted to be situated adjacent the flow sensor tube which is connected to a second voltage potential.

公开了一种电容拾取传感器，其包括至少一个可连接到第一电势并适于位于连接到第二电势的流量传感器管附近的导电板。

The transducer equipped with a 6 pin or a 8 pin connecter, the transducer is completely interchangeable with other international resembling products , widely used in in chemical fiber machine, rubber and plastic machine...etc.

该传感器配备了6针或8针连接器，该传感器完全可以与其他国际相似产品互换使用，广泛使用在化纤机械产品，橡胶制品橡胶和塑料机械等产品中。

The traffic sensor data screening of intelligent transportation system was discussed and the data flow exchange between data screening unit and other system of Traffic Information Center was described. The content and general procedure of data screening were introduced. The checking condition of data reasonableness and consistency in different traffic conditions were analysized.

对ITS中交通传感器数据的筛选问题进行了探讨，描述了数据筛选单元与其它系统间数据流的交换情况，介绍了数据筛选的内容和一般过程，并详细分析了不同交通条件下，不同交通传感器数据的合理性检验和一致性检验条件。

A primary goal in the design of wireless sensor networks is lifetime maximization,constrained by the energy capacity of batteries.

无线传感器网络是众多具有通信、计算能力和感知能力的传感器通过无线方式连接，相互协作，同物理世界进行交互，共同完成特定的应用任务。

B Topology control is one of key problem of a wireless sensor network.

2无线传感器网络拓扑控制技术是无线传感器网络的关键技术之一。

To detect cooling water system,a method based on wavelet forecast for sensor fault diagnosis is proposed.

以船舶冷却水系统传感器故障检测问题为目标，提出了基于小波神经网络预测器的传感器故障诊断方法。

Oxygen sensitive materials had been prepared by carrier covalence method, and the preparation mechanism of the materials had been investigated by FI-IR, SEM, and the detection experiment of oxygen.

氧敏感材料在光纤溶解氧传感器中的应用：该传感器的响应时间为20s，重复性和稳定性较好，不受溶液pH值的影响，但受水温影响较大，只能用于低温溶解氧的检测。

Major content of this work includes five aspects as follows:(1). Oxygen sensitive materials had been prepared by carrier covalence method, and the preparation mechanism of the materials had been investigated by FI-IR, SEM, and the detection experiment of oxygen. Then through the detection of oxygen, the sensitivity and stability had been estimated, and it was studied that the properties of materials would be affected by the various factors.(2). Oxygen sensitive materials had been prepared by carrier covalence-cross linking method, and the preparation mechanism of the materials had been investigated by FI-IR, SEM, and the detection experiment of oxygen. Then through the detection of oxygen and spectrophotometer, the sensitivity and stability had been estimated, and it was studied that the properties of materials would be affected by the various factors.(3). For the detection of gaseous oxygen, the fiber optical sensor on basis of oxygen sensitive materials had a respond time of 10s, detection limit of 5ppmand detection precision of 0.5%. The sensor had good repeatability and stability, a less delay and at least 1 year life-span.

本论文主要包括以下五个方面的内容：(1)载体共价法制备氧敏感材料：通过红外光谱、扫描电镜图谱和氧测试实验探讨该氧敏感材料的制备机理，通过氧测试实验评价该氧敏感材料的氧敏感性和稳定性，同时研究了各种因素对该氧敏感材料性能的影响(2)载体共价—交联法制备氧敏感材料：通过红外光谱、扫描电镜图谱和氧测试实验探讨该氧敏感材料的制备机理，通过氧测试实验和分光光度计评价该氧敏感材料的氧敏感性和稳定性，同时研究了各种因素对该氧敏感材料性能的影响(3)氧敏感材料在光纤气态氧传感器中的应用：该传感器的响应时间为10s，检测下限为5ppm，检测精度为0.5％，具有较好的重复性和稳定性，迟滞较小，使用寿命至少为1年，适合各种环境下气态氧浓度的检测。

By using correlation analysis, we are able to calculate the self correlation coefficient of the same characteristic value to achieve the association of current and previous one and the cross correlation coefficient of two different characteristic values, consequently achieve the data association between characteristic values. 3. On the characteristic level, we are trying to fuse the characteristic values from different data source and identify the exact type of the fault.

用同种类多个传感器进行测量，得到的数据以加权自适应估计方法将它们融合处理得出最佳值；对来自异类多个传感器的数据进行最小二乘估计处理将它们融合到一起，完成数据关联和从测量数据估计出它们所反映的特性；通过计算征兆数据的自相关系数能完成同一征兆当前值与过去值的关联，又可以通过计算两个征兆数据的互相关系数完成这两个征兆的关联。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。