试验设计

The arc light single criteria rule for detection of fault arc signal was given on the basis of various test studies.

在大量弧光传感试验研究的基础上，提出了故障电弧信号检测的弧光单判据规则，采用弧光单判据配合保护时间就可以完成系统的整体设计。

In this paper the image sensor technology and the relationship between the shape of the welding arc light and the location of welding torch has been investigate.

本文以图像传感技术为研究对象，分析了钨极惰性气体保护焊中焊接弧光的形态变化与焊炬空间位置的关系，并在此基础上设计了智能化不锈钢阀球气体保护焊接试验装置。

Further optimal' design and performance test show that smooth transition between Archimedes spiral and cyclone chamber is realized, and therefore more stable flow field and higher separating efficiency are fulfilled.

进一步的优化设计和性能试验表明，空间阿基米德螺旋线进口流道和导流螺旋实现了平滑过渡，从而得到较稳定的流场和较高的分离效率。

In order to optimize technological parameters of arecoline extraction from areca nut using supercritical carbon dioxide extraction technique, the effects of extraction temperature, extraction pressure and extraction time on arecoline extraction were explored by second-order regression general rotation design.

为了优化超临界CO2萃取槟榔碱的工艺参数，通过三元二次通用旋转组合设计实施试验，考察了萃取温度、萃取压力和萃取时间因素对槟榔碱萃取量的影响。

Based on many lab test s and a case line, the measuring technique and application Index of Asphaltum road surface of Tongsan Express in Fuiian Province is studied, the quality standard and error controlling area is put forward, the aim is to promote the road quality.

在大量室内试验研究及试验段验证的基础上，对改性沥青混和设计和关键施工工序及质量控制进行了对比并提出了施工质量标准与误差允许范围，为进一步提高路面施工质量起积极的推动作用。

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

Finally, the spraying experiment of HVAF air-blast atomizer designed was done and received a satisfied result.

最后对设计出的雾化喷嘴作喷雾试验，收到了良好的效果。

The platform designing that the photoelectricity sensor tests the instrument experiment this time adopt CSY-998G , the system making use of the photoconductance effect to be one kind of body effect of semiconductor materials , building an experiment, test photosensitive audion waiting for photosensitive transistor volt-ampere characteristic property.

此次设计采用CSY-998G光电传感器试验仪实验平台，利用光电导效应是半导体材料的一种体效应，建立实验系统，测试光敏三极管等光敏晶体管的伏安特性。

A computer automatic testing system of pressure testing machine and the design method of its software were introduced.

介绍了压力试验机的计算机自动测试系统构成及软件设计方法。

Main parameters such as initial inner pressure, cord angle and auxiliary chamber volume played important roles in air spring's transverse and vertical static mechanical performance and made sense

本文通过对空气弹簧静态和动态力学性能的有限元分析，取得了令人满意的结果，为空气弹簧虚拟试验和参数化设计平台的开发奠定了坚实的基础。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。