Application of CPLD in the industrial CT system

The application of CPLD (Complex Programmable Logic Devices) in the industrial CT system is discussed. The paper gives an architecture design and the realization of synchronized trigger module in the scan control sub-system; and also presents the circuit diagram and some result in detail. In the experimental CT system, it is well proved that the application of in-system programmable device supplies many advantages: the complexion of system and circuit is reduced; the process of debug and test is very simple; the system is flexible and the testing time is short. (authors)