查询词典 photoelectric

Wire electrode based on the trajectory of the different forms of control, WEDM can be divided into three types: one is shaped by the imitation controlled cutting in line in advance and work to create the same shape by mold, when processing the workpiece at the same time rough and on the mold clamping in the machine tool table, in the process of cutting wire electrode tightly against the mold on the edge of the track for the mobile, thus cutting out and die on the same shape and precision to the workpiece; another One is the electro-optical tracking control, to carry out the cutting line, before the basis of certain parts to enlarge the proportion of drawings depicts an electro-optical tracking map-processing machines will be placed in design stage of electro-optical tracking, tracking platform Photoelectric first line of graphics has always been to follow the track of the Mexican campaign, and then through the use of electrical, mechanical linkage to control the machine tool table, together with the workpiece so相似形wire electrode relative movement, thus cutting out the same shape and design to the workpiece; again a digital control, the use of advanced automatic control of digital technology-driven machine tool in accordance with the pre-processing parameters according to the workpiece geometry pre-processing procedures for the preparation of a good CNC auto-complete processing, the production does not require appearance on board the need to map to enlarge map of the previous two form of control has a higher machining accuracy and a broad range of applications, both at home and abroad more than 95% have adopted WEDM NC.

根据对电极丝运动轨迹的控制形式不同，电火花线切割机床又可分为三种：一种是靠模仿形控制，其在进行线切割加工前，预先制造出与工件形状相同的靠模，加工时把工件毛坯和靠模同时装夹在机床工作台上，在切割过程中电极丝紧紧地贴着靠模边缘作轨迹移动，从而切割出与靠模形状和精度相同的工件来；另一种是光电跟踪控制，其在进行线切割加工前，先根据零件图样按一定放大比例描绘出一张光电跟踪图，加工时将图样置于机床的光电跟踪台上，跟踪台上的光电头始终追随墨线图形的轨迹运动，再借助于电气、机械的联动，控制机床工作台连同工件相对电极丝做相似形的运动，从而切割出与图样形状相同的工件来；再一种是数字程序控制，采用先进的数字化自动控制技术，驱动机床按照加工前根据工件几何形状参数预先编制好的数控加工程序自动完成加工，不需要制作靠模样板也无需绘制放大图，比前面两种控制形式具有更高的加工精度和广阔的应用范围，目前国内外95%以上的电火花线切割机床都已采用数控化。切割属电加工范畴，是由前苏联人发明的，我国是第一个用于工业生产的国家，当时由复但大学和苏州长风机械厂合作生产的这是最早的机型叫复旦型，我们国内在此基础上发展了快走丝系统。欧美和日本发展了慢走系统LS

Although these combined relative error γ.1%, in order to obtain more precise measurement results, it should be pay attention for the level of the torsion pendulum, the uprightness between the photoelectric doors and the block rod, the location of the being measured substance, the similarity of the shape and the quality between the standard object and the being measured object, human factors and so on.

利用扭摆法测量物体的转动惯量，受到待测物体摆动周期测量误差、装配位置偏移误差和轴线倾斜误差的影响，虽然这些相对误差总合γ。1%，为了使测量结果是加精确，实践中应该注意扭摆的水平、光电门与挡光杆的垂直、待测物重心的位置、人为误差的影响以及待测物与标准件形状、质量的相近性等。

CNC surrounding attachment: all kinds of holders, body, chuck, chuck handle, adjustable boring hole, and tapping devices, BT pull bolt head, Tool Cart, spindle cleaning rods, lock knife blocks, all kinds of Z-axis settings Miriam, 3D form, eccentric type, photoelectric devices, such as edge finding.

CNC周边附件：各式刀杆、本体、夹头、夹头柄、可调式搪孔器、攻牙器、BT螺栓拉头、刀具车、主轴清洁棒、锁刀座、各种Z轴设定仪、3D表、偏心式、光电式寻边器等。

The photoelectrochemical behaviors of the films were measured by a three-electrode system, and the dye-sensitized solar cells with these films as anodes were assembled to investigate the photoelectric conversion capacities.

采用三电极体系研究薄膜的光电化学行为，并用制备的薄膜组装成染料敏化纳米晶太阳能电池，考察了DSSC的光电转换性能。

The analysis of 3D noise indicates that the measurement is effective. Two MRC models of ICCD imaging system has been established based on system performance of energy and modulation transfer whose target is three-bar. One MRC model is under the condition of standard A lamp, and the other is under the condition of night photo-spectrum. Because the MRC models integrate sensitivity, noise, target spatial frequency, MTF and the performance of human eye all together, the MRC models can evaluate limit performance of photoelectric imaging system more roundly.

在系统能量传递特性和调制传递特性的基础上，以三条带图案为研究对象，从信号转换的角度出发，围绕每景象立体弧度角中ICCD的电子通量，建立了基于量子噪声和CCD噪声特性的微光ICCD成像系统MRC模型，MRC模型综合了系统灵敏度和噪声、目标空间频率、系统调制传递特性以及人眼视觉特性等因素，能更全面地反映光电成像系统的极限性能。

The main products are: timer; counter; photoelectric switch; close switch; temperature controller; solid-state relay; security screens, etc..

主要产品有：计时器；计数器；光电开关；接近开关；温度控制器；固态继电器；安全光幕等。

The system error,station distribution,measuring environment and data processing of photoelectric theodolite were analyzed.

通过对光电经纬仪系统误差、设备布站、跟踪测量环境和数据处理方法等方面分析，对影响光学测量数据处理精度情况进行了阐述，为外弹道的数据处理精度分析提供了有效的技术支持。

Adaptive filter ; weak photoelectric signal detection ; least mean square ; gradient adaptive lattice joint processing

自适应滤波器；微弱光电信号检测；最小均方算法；梯度自适应格型联合算法

Photoelectric encoder is often used for detection of rotate speed and angular displacement in lathe principal axis system or servo driver.

引言光电编码器是一种集光、机、电为一体的转速、位移传感器，具有精度高、响应快、性能稳定可靠等显著的优点。

The instrument change speed of revolution to impulse signal by photoelectric transducer and as input signal of 8031 uniwafer-computer, then count input signal of revolution speed impulse through Time/Counter of 8031, thus revolution speed was measured.

此电压测量装置利用光电式传感器把转速信号转换为脉冲信号，作为输入信号通过8031单片机的定时器/计数器对输入的转速脉冲信号进行计数，来测量转速。

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。