查询词典 measurement

Combining the principle of the equal thickness interference of air wedge with the CCD image-processing technique,a high precision automatic measurement method of thermal expansion coefficient is presented.

将空气劈尖的等厚干涉原理与CCD图像处理技术相结合，提出了一种对材料热膨胀系数进行高精度自动测量的新方法。

S?J^(-1) which is higher than that of air-breathing mode laser propulsion. The measurement data were compared to the results of other authors.

实验发现水工质激光推进冲量耦合系数较大气吸气模式获得了较为明显的提高，达到了50×10^(-5)N？

Measurement result of this model indicates that this model is in good function and can be applied in all kinds of air-condition control system.

评估结果表明该网络模型具有良好的性能，完全可以应用于各种空调控制系统中。

So in this paper based on the characteristics and the optimum state theory of the vehicle, some kinds of control schemes are compared and discussed, and the fuzzy PID control scheme is adopted at last. The relation between air-cushion pressure and fan rotational speed on the optimum driving state is studied. The cushion pressure is used as controlled variable and the fan revolution is used as regulated variable. And transducer and fan motor are actuators.Based on the structure and operating properties of half-tracked air-cushion vehicle, the control system scheme and structure are presented. A control scheme using the self-tuning PID fuzzy logical controller is adopted. Fuzzy rules are set up and some researches have been done for fuzzy tuning method. At the same time the real-time measurement scheme by computer control is proposed, and electric circuits are designed. In the control system of half-tracked air-cushion vehicle cushion pressure P〓 is used as controlled variable and the fan speed n〓 as regulated variable.

因此本文以半履带式气垫车的特性和最佳工作状态理论为指导，通过对各种控制方法的比较与探讨，提出采用模糊PID控制方案，并且研究了在最佳工作状态下垫压及风机转速的关系，提出气垫压力作为控制参数，变频器和风机电机为执行机构，风机转速为调节量；主要进行了自整定模糊PID控制器的设计，研究了自整定PID模糊控制器的实现方法，编制了模糊控制规则，制定了模糊控制参数查询表，并分析了影响自整定模糊控制器相关的影响因素，确定了模糊控制表；为了实现半履带式气垫车的自动控制，还提出了计算机模糊控制系统的原理与结构，设计了相应的测量电路与控制软件。

Any measurement is subject to imperfections; some of these are due to random effects, such as short-term fluctuations in temperature, humidity and air-pressure or variability in the performance of the measurer.......

任何测量都是非理想性的，部分是因为温度、湿度和气压或者测量者的操作变动性等因素在短期内的波动等这些随机效应。。。。。。。

To measure dynamic stabilization precision of airborn electro-optical system,a measurement scheme of angular displacement of real-time variable frequency is put forward.

提出了一种实时高频角位移测量的新方案，采用该方案可对机载光电系统动态稳定精度进行测试。

Based on the design of measurement circuit and environmental quality of practical situation, the vibration proof and airproof experiment have been carried out separately.

密封实验表明电路板具有很好的耐油污性能，抗振实验表明电路板具有很好的抗振性能，设计的电路板可以在线使用。

For this, began model airscrew to sing sound the experiment research that eliminates a method, the sorts voice from surface of lamina of change model airscrew angle in the experiment designed a few kinds of disappear to call plan, finish sound measurement of a confusion of voices to experiment.

为此，开展了模型螺旋桨唱音消除方法的试验探究，试验中从改变模型螺旋桨叶片表面流态的角度设计了几种消唱方案，并完成噪声测量试验。

First-morning void for measurement of urinary albumin levels was collected from 40,854 people aged 28 to 75 years.

检测40，854例28-75岁的研究对象的早晨第一次尿的尿白蛋白水平。

In this pa-per, gas chromatography and colorimetry were applied separately for the measurement of methanol content in liquor of different alcoholicity.

采用气相色谱法和比色法，对不同酒精度和不同甲醇含量的样品进行检测。

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。