根据此方法已研制成功一个实用的单片机应用电路板测试系统。
According to this method, a practical test system has been made successfully.
针对大型复杂电子装备电路板测试系统的开发问题,提出了一种开放式开发模式。
Aiming at developing problem of test system for circuit board for large scale and complicated electronic equipment, the open model was presented.
电路板测试台是一种自动化数字电路故障测试设备,能快速、准确地将故障定位到芯片。
The test bench for circuit boards is an automatic test equipment for fault detection. The faults can be located to certain chips accurately and quickly through the bench.
设计了一种数字计算机系统电路板测试仪,提出了一种基于故障诊断的电路板测试方法。
Presents briefly and talks about the design method of digital system based on FPGA, and summarizes the steps about the design of digital system based on FPGA.
对所设计的应用电路板测试表明,采用该设计的功率放大电路具有精度高、线性度好、性能稳定等优点。
Tests for the applied PCB show that the aims of high precision, good linearity, excellent stability are finally achieved.
对所设计的应用电路板测试表明,采用该设计的功率放大电路具有精度高、线性度好、性能稳定等优点。
Tests for the applied PCB show that the aims of high precision, good linearity, excellent stability are finally achieve...
对所设计的应用电路板测试表明,采用该设计的功率放大电路具有精度高、线性度好、性能稳定等优点。
Tests for the applied PCB show that the aims of high precision, good linearity, excellent stability are fin...
介绍了IEEE P 1149.5电路板测试和维护总线标准,内容包括用途、结构、协议层次、中断与命令。
The IEEE P1149.5 Standard for Board Test and Maintenance Bus that include its application, architecture, protocol layers, interrupts and commands is introduced.
首先,针对某型精密伺服转台系统中三块电路板(模拟控制板、单片机板和测角控制板)设计了专门的电路板测试仪。
First, a special instrument to test the analog-control board, single-chip board and angle-measure board in the high precision servo turntable system is designed.
本文介绍了一种应用于电路板测试系统高性能模拟测试接口的研制。重点阐述它的设计思想、硬件结构以及抗干扰措施。
This thesis introduces the design of high performance analog test interface of BDS circuit board test system. It emphasizes the design theory, hardware architecture and anti-jamming measure.
在UPS行业,为了使测试员能快捷、方便的建立测试环境,需要有相应的UPS电路板测试平台,包括信号测量、动作执行、故障诊断、数据存储以及操作界面等。
In the UPS industry, in order to create the test environment for testers quickly and conveniently, it's necessary to have the test platform for UPS printed circuits boards.
测试产品的仪器能够几乎立刻发现印刷电路板的缺陷,如果同样的任务由人来完成,那将花费很长的时间,而且不如机器准确。
A machine can examine a circuit board for faults almost instantly. A human would take far longer to do the same thing, and would be less accurate.
过高的湿度会降低印制电路板和测试连接绝缘子的绝缘电阻。
Excess humidity can reduce insulation resistance on PC boards and in test connection insulators.
短路、开路测试完成以后,在线测试仪需要在同一时间对印刷电路板上的每一个器件进行测试。
After performing the shorts and opens test the in-circuit tester tests each component on a PCB assembly one at a time.
对于复杂的电路板或者没有经过在线测试的电路板而言,很多公司在最后装配之前进行功能测试。
For complex boards or boards that aren't tested with an in-circuit tester, most companies perform a functional test before final assembly.
对于简单的装配而言,电路板虽然存在这样的问题,但是数量少,所以很多公司在最后的装配过程中没有对电路板进行功能测试。
For simple assemblies, the number of boards with these problems is small, so many companies pass the boards on to final assembly without a functional test.
短路可能导致印刷电路板不能通过其它测试,在对电路板上电后,会损坏测试设备或电路板。
Shorts may cause a PCB to fail other tests and may damage the tester or the board under test if you must apply power to the board.
随着芯片集成度和印刷电路板复杂度的不断提高,边界扫描测试技术在芯片故障检测中的应用越来越广泛。
With the continual improvement of the chip's integration level and complexity of print circuit board, the application of boundary scan test technology becomes wider and wider in testing ICs.
前端采集插头接收测试数据,切换继电器电路传递被测电路板信号。
Testing data is received with data acquisition plug, signal from tested circuit board is transferred by circuit of switch relay.
采用静态和动态两步测试比较,可以实现子模块电路板的脱机调试。
By comparing the two step testing of both static and dynamic, we can realize the off line debugging of the submodular circuit board.
这个测试程序适用任何类型象针脚,插座,继电器,电线,连接器,印刷电路板等电流通道载体或其结合体。
This test procedure may apply to any type or combination of current carrying members such as pin and socket contacts, relay contacts, wire and crimp connectors, or printed circuit board and contact.
本文硬件设计主要包含了电路原理图设计、系统印刷电路板设计和系统测试。
In the part of hardware design of this paper, circuit schematic design, PCB design and system testing have been included.
为了跟上变化的印刷电路板技术,近些年来,在线测试设备已经增加很多功能。
To keep up with changing PCB technology, manufacturers of in-circuit testers have added features in recent years.
该方案已用于某雷达的混和电路板自动测试设备。
This approach has been used in the automatic test equipment of mixed PCB of a certain radar.
在组装的印制电路板自动光学检测中,由于印制电路板的热变形,造成检测中焊点位置的偏移导致测试失败。
Because of the thermal distortion, the solder check position has be shifted during Automated Optical Inspection (AOI) for the PCB (Printed Circuit Board) assembled.
本文介绍了电路在线测试的重要性,电路板在线测试的关键技术,电路在线测试仪的基本结构及其主要功能。
This paper presents the importance of in-circuit test, the pivotal technology of that, the basic structure of that and the function of that.
对印刷电路板装配的测试方法也已经改变了。
为了验证该方法的有效性,本文针对一块以MC 6800为微处理器的电路板进行了测试程序开发。
To verify the approach, we generate the test program for a circuit board based on MC6800 microprocessor.
简单介绍了在线测试这一概念;阐述了印刷电路板在线测试的流程和原理;分析了几种在线测试中的工艺性测试。
The article introduced the concept of on-line test, expounded the flow and theory of on-line test for PCB(printed circuit board), and analyzed several technics of on-line test.
用TPS对电路板进行自动测试、对电路板进行故障检测和修理,是提高新装备维修保障能力的关键。
TPS (Test Program Sets) can be used in fault detection and maintenance of PCB. It is critical to the enhancement of maintainability of new equipment.
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