Various types of guns and artillery are essential and important equipment for the military of modern countries, and the performance of guns and artillery often determines the outcome of war (especially sporadic local battles). The gun (gun) bore pressure and the initial velocity of the projectile are also important indicators to measure the performance of the weapon, and are also important technical parameters to be studied in internal ballistics.
The test system uses the principle of virtual instruments and uses the VXI bus as the test platform. The parallel acquisition technology is used to simultaneously test the pressure and projectile speed during the test. The test system is mainly divided into hardware and software. The hardware completes the capture of the original data, and the software completes the processing of the original data to obtain the final needs Test results.
The composition of the hardware:
VXI1010 main chassis
1394 zero slot controller
VXI1112 1MSPS 12Bit 8ch parallel data acquisition module
One host computer
In the test system, the VXI1112 completes the capture of the most primitive voltage signal of pressure and speed under the cooperation of the pressure sensor, charge amplifier and projectile crossing device (such as photoelectric target, etc.). The system diagram is shown in the figure below.
The composition of the software:
According to the needs analysis, the internal ballistic test application software is divided into 11 functional modules, which are the main control module, the initialization module, the data sharing area module, the gun speed measurement block, the shell speed measurement block, the speed and pressure measurement module, and the curve display Module, report module, driver module, system shutdown module and online help module
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