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Case study
Modular PCB Test System
intro
Nibe, a leader in consumer electronics, encountered a growing challenge as they managed a wide array of PCBAs (Printed Circuit Board Assemblies) across their product range. With numerous configurations and versions, the process of creating and switching between tests became increasingly slow and confusing. This inefficiency was further compounded by result data being scattered across multiple storage solutions, driving up development and maintenance costs.
To tackle this problem, QESTIT introduced the their software platform QATS, integrated with a modular test station. This solution enables Nibe to quickly generate, iterate, and seamlessly switch between different test setups, significantly improving efficiency. Additionally, by consolidating all result data in a unified cloud solution, Nibe can now streamline operations, reduce costs, and maintain a more organized and agile testing process.
A Modular Approach with NI PXI(e) and VPC Interfaces
One of the main challenges involved with the project was that each PCBA required a different hardware interface. The connection points to the Unit Under Test (UUT) changed position and pin size depending on the product. Furthermore, the hardware needed to capture different types of data also needed to change between tests. This change had to be accomplished quickly and simply as possible.
A NI PXI(e) based solution was the ideal approach, as it's large size and flexibility allowed for many types of instruments. To simplify the process of operators connecting to the PXI, a Virginia Panel Corporation (VPC) interface was attached to the test station. Sub-fixtures can then be attached to the VPC interface with only a single lever. This future proofs the system, as new sub-fixtures can be developed which attach onto the same VPC interface and integrated quickly with the hardware/software.
All channels of the test system are calibrated and validated using a custom-made loop back adapter. The loop back adapter can easily be connected to the test system using the Virginia Panel Corporation (VPC) interface. This means hardware systems can be tested before delivery while still ensuring accuracy and repeatability. We can recommend regular calibration dates for your system and provide the tools you need to complete it.
The work
Pictures from the project
VPC on the Test Station
Close up on the VPC
VPC connections on the inside of the test fixture
Glenn is building
The Test Station
Inside the Test Fixture
Custom Relay Control Box
Programmable Power Supply
EStop
PCB Close up
Final Test Station with Fixture
Simplifying Data Management
Nibe standardized result management using our result management software QRM. QRM is a web based result management system that stores and analyzes test results. QRM data consists of not only the measurement data but also additional information such as the traceability of the station/equipment used, configuration version and additional Unit Under Test (UUT) information. Nibe opted for storing all result data on our QESTIT servers. We securely store and backup your test data freeing space on your servers and time you would spend managing large quantities of data.
Nibe also uses QRM to perform data analysis (such as 6 sigma calculations). This helps them find common failures, increase manufacturing time and improve their products. Often the solutions to optimizing a production process are simple once you have enough data available to make decisions.
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