PCB Assembly Test Bed

The Printed Circuit Board (PCB) Assembly which goes into any controller is tested by using bed of nail fixture (also called ICT test fixture). This test is used to check PCB manufacturing defects and bad components using the electrical properties (Open/Short circuit). Here, the faults of the test are located directly on the specific components, the device pins, and the network points, and the fault location is accurate, besides, it can greatly improve production efficiency and reduce maintenance costs. The program is under control of automated testing, so the operation is a simple, fast and rapid test.

The test parameters that are measured across different combination of the bed of nail fixture

• AC Voltage
• AC Current
• DC Voltage
• DC Current
• Resistance

These parameters are compared against the user configurable specification. User has a provision to configure the test sequence and different bed of nail fixture. Test results will be saved into database and test report can be export in PDF file format. User can analyse the test results of different PCB Assembly boards in trend view screen of the test software.

Software Functions	Hardware used and Interfaced
User information manager	NI PXI-4065 6½-Digit DMM
Authorization levels	PXI-6221 (16 AI, 24 DIO, 2 AO)
Test configuration	PXIe-1082
Test pass/fail calculations	8-Slot 3U PXI Express Chassis
Report Generator	NI PXIe-PCIe8381
Test Data Exporter	x8 Gen2 MXI-Express for PXI Express Interface
	NI PXI-2575 196 ch Multiplexer

Benefits

• Any PCB assembly can be tested
• Single person can do all the tests
• User can configure the safety limits
• Less operating/testing time
• Less power consumption
• Auto saving reports in Database and PDF file format

Features

• User configurable test sequence and bed of nail fixture
• Expandable number of bed of nails
• Restricted GUI view for operators
• Statistical or Trend analysis report
• Remote database view for manager
• PDF form of reports