不能检测到与电路连接无关的问题,如功能性故障。 3. FCT(Functional Test): FCT是一种验证电路板功能性能的测试方法,通常在组装后进行。 优势: 可以检测到功能性问题,例如输入输出、通信和传感器功能。 对于复杂的电子产品,FCT测试可以模拟真实的使用场景,确保产品性能符合要求。 可以在组装后的最终阶段进行,以确保...
Introducing ICT testing prior to functional test improves quality and debug efficiency. ICT diagnoses manufacturing issues while functional testing confirms proper functionality. The two methodologies complement each other. Below are key considerations when selecting ICT systems: ...
下图是模拟 试在testhead 中的硬件结构. 1. 测电阻 (Resistor) 1)基本测试原理如下: 测试是利用运算放大器的虚地和输入阻抗为零来精确量测的,其公式如下: 由运放的虚地得到:Ix=Vs/Rx ,Iref=Vo/Rref , 由运放的输入阻抗为零得到 Ix=Iref 故 Vs/Rx=Vo/Rref 由上公式得到: Rx=Rref*(Vs/Vo) Disconnect...
,电位器(potentionmeter).下图是模拟测试在testhead中的硬件结构. 1.测电阻(Resistor) 1)基本测试原理如下: 测试是利用运算放大器的虚地和输入阻抗为零来精确量测的,其公式如下: 由运放的虚地得到:Ix=Vs/Rx ,Iref=Vo/Rref ,由运放的输入阻抗为零得到Ix=Iref 故Vs/Rx=Vo/Rref 由上公式得到: Rx=Rref*(Vs/...
(s) across the continent, offering a comprehensive research tool that can both stand the test of time as well as offer researchers (particularly those in the economically developed Global North) models for cross-cultural comparative research. The essays here deploy either a wide range of evidence...
However, by implementing sensors, the industry can test for key measurements in real time, such as flow-rates, temperatures, and pressure as well as report on production operations. These sensors, which are al- ready in place through British Petroleum's Field of the Fu- ture® and Shell'...
Key words: ICT AT25F1024 BT-BASIC Powered Test Shorts Test Digital Test Testjet Test 目录绪论 5 第一章 基本硬件结构 6 1.1 概述 6 1.2测试头(Testhead) 6 1.3电源柜(Support Bay) 7 1.4控制器(Controller) 8 1.5测试夹具(Fixture) 8 第二章 基本操作窗口与测试操作 10 2.1 BT-BASIC窗口及命令 10...
(4) Testing Analog Unpowered (5) Testing Testje (6) Testing Polarity Check (7) Testing Connect Check 2.上电测试: (8)Setting Up Power Supplies (9)Testing Digital Incircuit (10)Testing Digital Functional (11)Testing Analog Powered and Mixed 2.6.3 保养内容 保养前的工作: 1.做一次机器的...
(1) Testing Pin Contact(pins) (2) Testing Preshort (3) Testing Shorts (4) Testing Analog Unpowered (5) Testing Testje (6) Testing Polarity Check (7) Testing Connect Check 2.上电测试: (8)Setting Up Power Supplies (9)Testing Digital Incircuit (10)Testing Digital Functional (11)Testing...
下图是模拟测试在 testhead中的硬件结构 . 1. 测电阻 (Resistor) 1)基本测试原理如下 : 测试是利用运算放大器的虚地和输入阻抗为零来精确量测的 ,其公式如下 : 由运放的虚地得到 :Ix=Vs/Rx ,Iref=Vo/Rref , 由运放的输入阻抗为零得到 Ix=Iref 故 Vs/Rx=Vo/Rref 由上公式得到 : Rx=Rref*(Vs/V o...