要求高精度的

With the development of aerial industry, the requirement of performance of the three-axis table is higher and higher.

随着航空、航天工业的发展，对其关键性设备惯性元件要求的精度不断提高，同时对转台性能指标的要求也越来越高。

The system uses non-contact measurement and has high precision. Using digital information, achieve real-time automatic computation, high speed and high reliability. This system will b...

指出该测试系统采用非接触性量测手段，精度高；数字化信息，实时自动运行计算，速度快，可靠性高；对于有生产效率要求的整车生产厂，此测试系统具有广泛的使用意义。

In the light of cost index and pollution degree, the characteristics of kinds of pulp are analyzed in detail, and the GP pulp which is low cost, high-yield, no-pollution is chosen as the material of tableware. Based on material element analyzed, shaping technology is designed, the to and for single plane shaping equipment which is high shaping quality, high production efficiency and is easy to automatize is chosen. All kinds of measure are taken to solve the problems which are inequality in the shaping process of GP pulp, and dosage which matches with GP pulp is chosen. Some ways of fixing shape and heat up are analyzed, the technology of saving energy of heat pressing to fix shape being composed of oil heat and only one fixed shape in the mold is applied, with which it is high production efficiency, low cost to fix shape effectively, which saves energy 30 percent. In order to make the production line meet with material of GP pulp, measure are taken to solve the problem of pulp adhered to netlike molding which can lead to carry material difficult, the structure of fully automatic equipment is renovated, the loaded beam is optimizationally designed to make equipment structure compactand improve location precision and products quality. According to technologic flow and actual characteristic, Omron PLC is chosen as the core of the control system, proximity switch as detect unit take the place of touch switch, software is designed reasonably according to time order figure, hardware is simplified, the reliability of system is advanced, the stability of system is assured to make production order. Intelligence neuron PID system is studied theoretically which is made up of both neuron with self-organizing and self-learning function and ordinary PID with the characteristic of the simple structure and high stability, which can automatically tune the parameter with the change of system parameter, remain perfect performance.

按成本指标和污染程度分析各浆料的特点，选择低成本、高得率、无污染的磨石机械浆为原料，在原料组分分析的基础上，设计成型工艺，选择成型质量好、生产率高、易实现自动化的往复式单板成型机，采取各种措施解决GP浆成型不均匀的问题及选择与机械浆相匹配的助剂；分析几种定型方式和加热方式，采用定型效果好、生产率高、成本低的油加热与模内一次性定型相结合的热压定型节能技术，节能30％；为了使生产线适应磨石机械浆原料，采取相应措施解决由于粘网造成物料转移困难，对全自动设备结构进行改进设计，着重对物料传送系统的关键部件——承载梁的进行优化设计，使设备更加紧凑合理，提高设备的定位精度和产品质量；根据生产线工艺流程和现场特点，选用OMRON CPM1A型PLC为主核心，接近开关作为检测元件，替代有触点开关，选用可编程终端代替常规面板按扭，并按照时序图科学合理地设计软件，有效地简化系统硬件构成，提高系统的可靠性，保证系统的稳定性，从而使生产更加通畅有序；从理论上探索将神经元应具有的自组织、自学习要求与PID控制结构简单、稳定性好的全自动纸浆模塑餐具生产线的研究特点结合起来，构成神经元自适应PID控制器，当参数的变化时，系统能自行参数整定，保持优良的工作性能指标，满足实际需求。

However, please be noted that high sensitivity will allow the interfusion with exterior noise irrelevant to the quantity to be measured, which will be also amplified by the system. As a result, the accuracy of measurement is affected. So, the senor itself should have high signal to noise ratio, to reduce the exterior interfering signals as much as possible.

但要注意的是，传感器的灵敏度高，与被测量无关的外界噪声也容易混入，也会被放大系统放大，影响测量精度，因此要求传感器本身具有很高的信躁比，尽量减少从外界引入的厂忧信号。

Through the interferencing light intensity under a sine-wave modulation signal analysis, the output signal of fiber-optic gyroscope is demodulated. And then the change of the output signal of gyro is gotten. Through the analysis of the change we know that the effect of residuary intensity modulation on the performance of Interferometric Fiber Optic Gyroscope is related with the precision and accuracy requirements of IFOG. The higher precision, the more obvious effect.

本文首先通过正弦波调制下干涉信号光强分析解调出光纤陀螺的输出信号，进而得出残余强度调制存在的情况下陀螺输出信号的变化情况，同时，通过分析陀螺信号的变化说明残余强度调制对光纤陀螺性能的影响与陀螺精度要求有关，精度越高，其影响越明显。

First the spectrum-equalized seismic data is equalized by trace, then the result is analyzed with the MESE. If the resolving power of the MESE doesn't reach the precision desire, the equalized data is added with appropriate white noise, then is analyzed with the MESE. Thus the more precise spectral estimate is gotten.

首先对谱均衡后的地震数据作归一化处理，然后对处理结果作最大熵谱估计，若估计结果的谱分辨率精度不能满足要求，则先对归一化的地震记录叠加適当的白噪声，然后再作最大熵谱，这样可以得到较高的估计精度。

The results show that: the tensile strength, flexural strength and flexural modulus increase by about 10.4%, 62.1% and 122.3% respectively when the mass fraction of the aluminum powder increases from 0 to 50%, while elongation at break and impact strength decrease by about 65.0 and 74.4% respectively; the tensile strength, elongation at break and impact strength all increase with decreasing the particle sizes of the aluminum powders.b Nylon-12 coated metal powders for the indirect SLS process were prepared by the dissolution precipitation process. The coated powders have only 1.0 wt% nylon-12, and their SLS green parts have sufficient strength for features as small as 1.0 mm to be built and post-processed and high dimensional accuracy. The green parts were subjected to the post processing processes including binder decomposition and infiltration of epoxy resin, and then the metal/polymer composite parts with relatively high strength and accuracy were formed.At present, micron-scale inorganic fillers have been widely used to reinforce nylon SLS parts.

将该法制备的尼龙12覆膜金属粉末用于以下两个方面：a使用铝粉增强尼龙12的SLS成形件，通过溶剂沉淀法制备尼龙12覆膜铝复合粉末，研究了铝粉含量及粒径对SLS成形件性能的影响，结果表明：铝粉分散均匀，并与基体有良好的界面粘接；当铝粉含量从0增加到50wt％时，成形件的拉伸强度、弯曲强度、弯曲模量分别提高10.4％、62.1％和122.3％，冲击强度和断裂伸长率下降65.0％和74.4％，耐热性及尺寸精度也得到提高；断裂伸长率、冲击强度及拉伸强度均随着铝粉粒径的减小而增大。b使用溶剂沉淀法制备了间接法SLS用尼龙12覆膜金属粉末，该覆膜粉末中聚合物粘接剂的含量仅为1.0 wt％，其SLS初始形坯具有较高的精度以及足够满足后处理要求的强度，最小精细结构的尺寸达1.0 mm。

But errors lies in the way of counter lead the bad measurement, especially when it needs high precision or the clock pulse is wider than the difference.

但是由于计数方法本身的误差，在测量精度要求比较高或是在鉴相脉宽小于用于计数的时钟脉冲周期时，原来的测量方法就无法满足实际的测量要求。

The two blades are fixed to constitute 45°(it adopts one special blade for cutting profile of professional picture frame) to cutting 45 degree profile, adopt German 13 hard alloy saw blades, imported guide rail, automatic cooling spray lubrication and hydro-pneumatic damper stepless speed regulation, thus it has high linear velocity and stable cutting angle, good surface finish, high precision and stable feeding.

采用德国成熟的设计理念结合最新的使用要求与习惯、针对用于38、50、65系列铝合金门窗料、镜框料以及新型隔热型材门窗料45度切割而开发，专业45度切采用两锯片固定构成45°（专业镜框料切割锯床采用一把专制刀具），对型材完成45°切割。选用德国13硬质合金锯片、进口导轨，线速度高，因而切割角度更加稳定、精确，自动喷油冷却润滑、气液阻尼无级调速装置，加工表面光洁度好，精度高、进给平稳。

Because of the special purpose of functional ceramics, the high requirement of performance is synchronously necessary for electrical components and parts, and the stricter requirement is presented on the integrity and surface accuracy, or the ultra-smooth surface without damage and deterioration layer.

由于功能陶瓷的特殊用途，兼之对电子元器件的性能要求也越来越高，对元件表面的完整性及精度提出了更严格的要求——无损伤、无变质层的超平滑表面。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。