This data acquisition software of industrial air cannon impact test system is written on the platform of LabVIEW. This software realizes high-speed acquisition, analysis, display and storage of air cannon spray explosion data. This system test software can mainly realize the following main functions:
Communication between software and hardware.
This connection work is mainly done through DAQ assistant. Application layer, test execution layer, and measurement and control service layer are three layers of virtual software. DAQ Assistant belongs to the measurement and control service layer, which provides the connectivity between virtual instrument hardware and software, and completes the connection between hardware and software.
Graphic display.
The test of impact force of industrial air cannon gives real-time waveform information. The contents that can be displayed on the waveform include: the ratio of rising and falling time of waveform, total explosion time, extreme value of explosion pressure, degree of steepness of waveform, etc., and information displayed by the software. The waveform image is convenient for visual observation.
3) Remove interference points and filter out interference sources. There are many electromagnetic waves in real life, which will have a certain impact on data acquisition and make the test results fluctuate greatly. It is necessary to filter out these interferences to obtain accurate test data.
4) Add accurate corresponding time to the data collected in real time. The analysis of results requires time, and each data has a corresponding time to be meaningful for analysis.
5) Data storage, store 1 impact force data into the table every 2ms, and store the corresponding precise time in the corresponding location, which is convenient for later analysis and recall.