pcba

Functional Test System On-line of PCBA Based on Virtual Instrument

基于虚拟仪器的PCBA在线功能测试系统

Finally I introduce the actual application of the PCBA fault diagnosis system .

本文最后介绍故障诊断系统的实际应用，分析了实际对象的特点以及采用的具体处理方法。

PCBA manufacturing system modeling and simulation based on hybrid Petri nets

基于混合Petri网的PCBA制造系统的建模与仿真

Research on PCBA Intelligent Vision Inspection Technology Powered by Virtual Instruments

基于虚拟仪器的PCBA智能视觉检测技术研究

Research on PVDF Piezoelectric Film Sensor and Its Application in PCBA Modal Analysis

PVDF压电薄膜传感器的研究及其在PCBA模态分析中的应用

Everything , whether an invoice or a PCBA , is produced through a process .

每样东西，无论是成品还是PCBA，都是经过程生产出来的。

Hands-on experience PCBA soldering and debug as first plus .

具备实际操作PCBA手工焊接和电路诊断经验，为首要优先条件。

It is intended to provide an assessment of PCBA Manufacturing Capability based on PCBA Manufacturing Complexity .

此文件的目的，是提供一个基于PCBA制造复杂性的对PCBA制程能力的评估方法。

Thermal impact to PCBA during reflow soldering is considered one of the main drivers for manufacturing defects .

在再流焊过程中受到热冲击已成为PCB组件生产过程中产生缺陷的主要原因之一。

The paper use finite element analysis method analysis the thermal impact of PCBA during the reflow soldering , and building the temperature and stress distribution model .

本文利用有限元法对PCB组件在再流焊过程中的受热进行分析，建立瞬态温度场和应力场模型。

PCBA Pring Circuit Board Assembly We explained the design of optical converters in terms of component selection and PCB design .

印刷电路电路板组件从元器件选择、印刷电路板设计两方面阐述了光纤收发器的设计。

Application of CIM in PCBA

CIM系统在PCBA行业的应用

ABC Company , which headquarters in USA , is a professional manufacturer for cleaning products which were applied in PCBA process of electronic industry .

ABC公司总部位于美国，是电子制造业PCB装配领域清洁用品的专业制造商。

And to provide line control panel ODM / OEM manufacturing , electronics , semi-finished products ( PCBA ) of the complete production .

并提供线路控制板ODM/OEM生产、电子半成品（PCBA）的配套生产。

Residues and Reliability of PCBA

残留物与PCBA的可靠性

As an indispensable part of the structural design of electronic equipment , the analysis and control for vibration of Printed Circuit Board Assembly ( PCBA ) are extremely important .

振动分析与振动控制是电子设备结构设计中必不可少的一部分，而印制电路板组件（PCBA）是电子设备的关键部件。

PCBA Pring Circuit Board Assembly

印刷电路电路板组件

Speedy-Tech is a provider of EMS for PCBA , Bon-Build and Power Electronics Solutions .

斯比泰电子是一家专业的EMS提供商，包括PCBA、品总装，电源解决方案。

With component power getting higher and higher , semiconductor density getting denser , over heating can cause lot of problem of PCBA efficient and reliability . Many ways to improve thermal conductivity .

随着元器件的功率越来越高，半导体的密度也越来越大，产生过热已给PCBA组装引起效率和可靠性问题，可采用多种方法来改进热导率问题。

PCBA ( Printed Circuit Board Assembly ) cleaning is aerospace electronic product manufacturing , cleaning the important link of the clean degree will directly affect the quality and reliability of electronic products .

PCBA（PrintedCircuitBoardAssembly印制板组装件）的清洗是航天电子产品生产的重要环节，清洗的洁净程度直接影响到电子产品的质量和可靠性。

Optimize the temperature figure is attainable through the simulation , and the temperature distribution of PCBA is more uniform , also the warpage is minimized by adjusting constrained condition .

通过仿真可对再流焊温度曲线进行优化，使得PCB组件得到比较均匀的温度场分布，并调整对PCB的约束，使得变形最小化。

Through extracting the mark point on the PCBA , a system of coordinates is established and the image locating and adjusting are realized . Thirdly , two defect inspections are introduced .

通过提取组装电路板图像中的定位点，建立坐标系，实现了对图像的定位和校准。

Being faced with the problems found in detection of printed circuit board assembly ( PCBA ) at present , a new method of PCBA detection which is economical , rapid and reliable is promoted .

针对目前印刷电路板组装件（PCBA）检测存在的问题，从经济、快捷、可靠的角度出发，提出了一种新的检测方式。

Furthermore , the soldering process of PCBA in the whole infrared reflow soldering stove is modeled by the finite element software , ANSYS , and is simulated by the three-dimensional modelling .

此外，利用有限元ANSYS软件对PCB组件在整个红外再流焊炉中的焊接过程建立了实体模型，进行了PCB组件再流焊全过程的三维动态模拟和仿真。

For power board testing , testing to part of wire is critical , for example the start voltage of transformer , measuring of wave shape ( PCBA adopts operation adjustment module , this part influences product service time )

对于电源板测试，线路部分的测试是非常关键的，比如变压器的启动电压，波形量测（PCBA采用运放调理模块，此部分关系到产品可持续服务的时间）。

The results indicated that pCBA promoted the decomposition of ozone strongly in the batch tests under neutral pH conditions . Its promotion ability was 10 times higher than those of formic acid and methanol .

结果表明，中性条件下间歇试验中，对氯苯甲酸可以强烈促进臭氧分解，它促进臭氧分解的能力比典型的促进剂甲酸和甲醇高10倍。

The variation of k values of oxalate , toluene and humic acid samples with or without pCBA could tell whether the used pCBA leaded to a detectable error and how big of the error .

通过对比乙二酸、甲苯和腐殖酸溶液中投加对氯苯甲酸前后k值的变化，判断投加的对氯苯甲酸是否能引起测量误差及误差大小。

Based on the design of a friendly interface , easy operation parameters generated water cleaning PCBA software , effectively solved by technology personnel experience leads to cleaning parameter selection of problems for aerospace water cleaning , provides the reasonable parameter , convenient reference .

本文通过设计出界面友好、操作方便的PCBA水清洗参数生成软件，有效解决了因工艺技术人员经验不足导致清洗参数选择不当的问题，为航天水清洗参数的确定提供了合理、便捷的参考。