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Functional Tester – FCT Test

FCT (Functional Test) test systems are advanced devices used for functional testing of electronics, both at the level of a single PCB and a finished device. FCT testing is designed to verify that a product meets its design specifications and performs as expected by simulating its actual operation in the target environment.

What is FCT testing?

Functional Testing (FCT) involves verifying the functionality of an electronic system or finished device. The test system simulates actual device operating conditions, verifying that all components are functioning properly and that input and output signals are as designed.

FCT Testing Scope:

  1. PCB Testing:

    • FCT tests can be performed on finished PCBs with installed electronic components, before the device is fully assembled.
    • The tests include: The system’s response to input signals, the correct operation of components, and the consistency of output signals.

  2. Testing devices after partial production:

    • Tests can be performed after a specific assembly stage, e.g., before enclosing the device in a housing or before installing the software.
    • They allow for early detection of functional problems and reduce costs associated with repairing the finished product.

  3. Testing finished devices:

    • The FCT system checks the full functionality of a finished device, simulating its actual operation under operational conditions. Tests include external communication, key function operation, and compliance with specifications.

How does FCT testing work?

The FCT system connects to the PCB or device under test via a dedicated interface, which can be:

  • Needle tester: Used for precise connection to test points on a PCB. Pins (probes) allow test signals to be transmitted to specific areas of the board or device.
  • Connectors, splices, and cable sheaths: Used to connect devices in more complex configurations.

The FCT tester powers up the device under test and verifies its response to input signals. Examples of functionalities verified during testing:

  • Response to control signals.
  • Reading input and output data.
  • Proper operation of communication modules (e.g., Wi-Fi, Bluetooth).
  • Power supply and current consumption.

Our FCT services:

  1. Dot-matrix tester production:

    • We create dedicated dot-matrix testers for functional testing of PCBs and devices. Designs are precisely matched to customer designs, enabling fast and reliable testing.

  2. Mechanics of FCT Test Systems:

    • Drilling and Modification of Test Plates: We prepare test plates by drilling and adapting contact points to the requirements of the test probes.
    • Fixture Design and Construction: We create mounting mechanisms and adapters to facilitate testing, tailored to specific needs. customer.

  3. Cable Sheathing Production:

    • We produce high-quality cable sheathing to connect tested devices to testers. The sheaths are designed to ensure durability, reliability, and ease of use.

  4. Building complete FCT systems:

    • We design and implement comprehensive test solutions, including mechanics, electronics, and software, allowing for full functional testing.
    • We integrate components such as needle testers, test fixtures, cable sheaths, and software Testing.

Benefits of our FCT systems:

  • Versatility: Our systems enable testing of both individual PCBs and entire devices at various stages of production.
  • Precision: Dedicated needle testers ensure accurate connection to test points on PCBs.
  • Comprehensive: We offer complete solutions, including mechanics, cable sheathing, and dedicated test software.
  • Customization: All our solutions are tailored to specific customer requirements, ensuring maximum testing efficiency.

Summary:

FCT (Functional Test) systems are an indispensable tool in the electronics manufacturing process, allowing for the functionality of PCBs and devices to be verified at various stages of production. Using needle testers and appropriate infrastructure, it is possible to quickly and precisely verify the correct operation of each circuit element. Our company offers comprehensive support in the construction of such systems, including the production of testers, mechanics, cable sheathing, and complete solutions ready for integration into the production line.

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