1. Basic Introduction to FCT
The Functional Circuit Test (FCT) is a dynamic function tester for circuit boards. It treats the tested unit on the circuit board as a functional unit, providing input signals and detecting signals according to the design requirements. It aims to improve the automation level of testing with advanced and flexible solutions, greatly shortening fault finding time and providing a quick method for repair and fault finding. The device is controlled by an industrial computer and integrates a standard GPIB interface, multi-channel programmable waveform generator, programmable I/O channels, and data acquisition module. This allows users to maximize data acquisition and testing of various analog/digital signals of the circuit to be tested, and conduct qualitative or quantitative analysis through system software. Furthermore, the GBIB interface allows for connection to any device that meets the GPIB interface standard, providing unlimited expandable space in terms of functionality. The flexible and simple human-machine dialogue interface greatly facilitates user use.
2. The types of FCT test are divided into:
2.1 According to the control mode:
They can be divided into manual control function testing, semi-automatic control function testing, and fully automatic control function testing.
2.2 Based on controller type:
They can be divided into MCU control mode, CPU control mode, PC control mode, PLC control mode, etc.
3. The common benefits of using FCT test are:
The advantage of using functional testing fixtures is that they enable the production of a large number of high-quality products with fewer defects and low variability, even with less skilled workers. However, in diverse and limited production modes, the use of many fixtures actually leads to an increase in production costs.
4. The functional testing of PCBA is generally divided into the following parts:
4.1 System Control Center:
This part is generally composed of small or medium-sized central processing units such as PC, MCU, ARM, etc. Its main function is to control the entire testing process, judge and record the testing content of each step, and ultimately obtain the test results. It is the core brain of the entire testing system.
4.2 Control execution part:
The control execution part is mainly composed of I/O components, which are the sensing and executing mechanisms for testing process logic actions. The system uses it to build various testing environments and achieve testing functions.
4.3 Parameter measurement section:
The measurement part mainly consists of some measuring boards and instruments. It can mainly complete the collection of various analog or digital quantities during the testing process. So sometimes we refer to it as the data collection section.
4.4 Data processing and output section:
The purpose of our entire testing is each step and the final test result. How to store and output these results and data, making it more convenient for us to effectively control the quality of PCBA products, is the responsibility of the data processing and output section.
The Functional Circuit Test (FCT) is a dynamic function tester for circuit boards. It treats the tested unit on the circuit board as a functional unit, providing input signals and detecting signals according to the design requirements. It aims to improve the automation level of testing with advanced and flexible solutions, greatly shortening fault finding time and providing a quick method for repair and fault finding. The device is controlled by an industrial computer and integrates a standard GPIB interface, multi-channel programmable waveform generator, programmable I/O channels, and data acquisition module. This allows users to maximize data acquisition and testing of various analog/digital signals of the circuit to be tested, and conduct qualitative or quantitative analysis through system software. Furthermore, the GBIB interface allows for connection to any device that meets the GPIB interface standard, providing unlimited expandable space in terms of functionality. The flexible and simple human-machine dialogue interface greatly facilitates user use.
2. The types of FCT test are divided into:
2.1 According to the control mode:
They can be divided into manual control function testing, semi-automatic control function testing, and fully automatic control function testing.
2.2 Based on controller type:
They can be divided into MCU control mode, CPU control mode, PC control mode, PLC control mode, etc.
3. The common benefits of using FCT test are:
The advantage of using functional testing fixtures is that they enable the production of a large number of high-quality products with fewer defects and low variability, even with less skilled workers. However, in diverse and limited production modes, the use of many fixtures actually leads to an increase in production costs.
4. The functional testing of PCBA is generally divided into the following parts:
4.1 System Control Center:
This part is generally composed of small or medium-sized central processing units such as PC, MCU, ARM, etc. Its main function is to control the entire testing process, judge and record the testing content of each step, and ultimately obtain the test results. It is the core brain of the entire testing system.
4.2 Control execution part:
The control execution part is mainly composed of I/O components, which are the sensing and executing mechanisms for testing process logic actions. The system uses it to build various testing environments and achieve testing functions.
4.3 Parameter measurement section:
The measurement part mainly consists of some measuring boards and instruments. It can mainly complete the collection of various analog or digital quantities during the testing process. So sometimes we refer to it as the data collection section.
4.4 Data processing and output section:
The purpose of our entire testing is each step and the final test result. How to store and output these results and data, making it more convenient for us to effectively control the quality of PCBA products, is the responsibility of the data processing and output section.
