误差因素

Analysis suggests that errors are mainly caused by approximate computation and the value of contacted resistance adopted.

误差产生的主要原因是计算过程中的近似和短路片接触电阻的取值，其中短路片接触电阻是一个重要因素，在设计腔体时应引起足够的重视。

In order to improve the measuring accuracy and efficiency, a high accuracy inspecting system for measuring the centroid and centroidal deviation of bullets based on three point method is designed. The working principle, relevant calculation formulae and the measuring equipment for measuring the centroid and centroidal deviation of bullets are presented, and the main factors affecting measuring precision are discussed. Then, a multiple measuring platform with automatic leveling and column structure autorotation of 90° is put forward.

为了提高其测量精度和效率，设计了基于三点法的高精度弹丸质偏心测量系统，介绍了测量原理、计算公式和测量设备，分析了测量误差产生的因素，提出了一种多测试平台和自动调平以及弹体自动旋转90°的设计思想。

In addition, in the design of software configuration it analyzes the realization of the high-speed data sampling program and intelligent information processing and monitoring. At last it introduces function of sbftware of systems analysis in brief.The operation demonstrates that the brand-new monitoring method of the monitoring system can acquire the operation axis of large-scale rotary kiln by rule and line on the operation position, and it is a break-through in real-time monitoring method.

现场运行表明，该监测系统所采用的全新的监测方法能够在十分恶劣复杂的现场环境中准确地获取大型回转窑的运行轴线参数，对大型回转窑实时监测方法是一种新的突破；同时，采用的特制电涡流传感器及微机软件进行误差补偿极大地提高了监测系统的测量精度：采用的模糊自适应智能滤波方法有效地滤除了本系统恶劣环境下各种干扰因素。

But, in the real canal operation, the canal water surface will fluctuate because of outside disturbance, and there is measurement error in measuring water level. Whether or not the estimated state can substitute for the real state will results in the design issues of optimal observer.

问题是在实际的渠道运行中，渠道水体会由于受到外部因素的干扰而产生水面波动，水位测量仪器也存在观测误差，那么估计的水流状态能否替代真实的水流状态。

This paper analyses the effective factors and restricted methods of combustible cartridge case charge on muzzle velocity probable error.

分析了可燃药筒对初速或然误差的影响因素及限制办法。

The gap method is better than other methods to calculate the infiltration amount of wind through windows and doors gap, but the infiltration characteristic exponent of the gap method is influenced by some factors, such as differential pressure、fluid state、gap width、geometrical shape etc, It's Range of.

相对于其它方法，缝隙法可较准确的计算通过门窗缝隙的渗风量，但是缝隙法中的渗风特性指数受到压差、空气流态、缝宽、缝隙几何形状等因素的影响，变化范围在0.5～1.0之间，工程应用中一般取0.67，这给渗风的计算带来很大误差。

A method for determinating the activities of pectinase was proposed in this paper. It can produce the red-brown amino compounds when 3,5-dinitrosalicylic acid and aldehyde were heated together. The amino compounds had maximum absorbency at 540nm. In certain range, there was a good linear relationship between the amount of reducing sugar and the color of the reaction mixture.

针对QB1502-92标准测定方法测定高活力果胶酶、固定化果胶酶活力存在的实验误差大，重现性及灵敏度差的缺陷，提出了利用3，5-二硝基水杨酸与醛糖共热产生棕红色的氨基化合物，在一定范围内还原糖的量和含有呈色氨基化合物的反应液颜色深浅成正比的原理，在540nm下测其吸光度，从而计算出果胶酶活力的测定方法，并对测定步骤、影响因素及测定中可能出现的问题进行了试验研究。

In this paper,a method of auto compensation to maneuver error is present.

在平台罗经中，机动误差是影响系统精度的一个重要因素。

It is main cause to testing accuracy on concentricity and orthogonality of turntable.

证实了转台轴系不正交度及平台与转台安装误差是影响测量精度的主要因素。

The measure error is the main conditionality factor in the experiment.

测量误差是实验中的主要的制约因素。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐