Design Of Circuit General-purpose Automatic Test System

The circuit is the part that cannot be lack in the electronics system developement and production. and its quality directly influences the quality of whole set equipment, and its production and inspection period influences the development rate of progress and pays time of the whole set, however, the traditional test system has been hard to satisfy to the more and more higher test requirement of circuit test gradually, at the automaticity, the commonality and the complicated level of using and so on.This article realizes the high integration of the traditional general-purpose signal generator and general-purpose test apparatus by way of LabVIEW's software development terrace, which develops one kind of general-purpose automatic test system. This article makes use of virtual instrument technology to realize overall frame of the system, and makes use of LabVIEW software to give rise to and deal with the signal, and the input and the output of the signal is realized by the data acquisition card; This article applies the design thought of component oriented in the software engineering to LabVIEW, thus makes the complicated programme course change to two steps of the component development and the component joint, and makes use of the enumerate control with strict data types at the same time can greatly increase the reusability and the extendibility of system; This article makes use of the Queue's technology of the synchronous control technology in LabVIEW to realize the joint of general-purpose automatic test system components, thus realizes the integration of signal source and test instrument, and can avoid the problem such as data loses or repeatedly uses and so on.The reliability and the accuracy of this system is verified by way of several more representative experiments, that proves fully this test system has a series of merits such as the powerful function, the accurate test result, the convenient using, the beautiful interface and so on, it has some use value for real circuit test or circuit test scientific research experiment.