Design and Test of Multi-Information Storage Testing System in Complex Physical Environment

Abstract

Aiming at fuze information acquisition in complex physical environment, a test system with high impact, miniaturization and multi-physical field is designed, which can identify and record various physical environments including overload, electromagnetic intensity and temperature. The three-axis acceleration test module takes the MCU as the core processing chip, and realizes the functions of high impact three-dimensional acceleration signal conditioning, data sampling, storage and data readback through the design of hardware circuit and software program. The three-axis magnetic induction intensity test module takes the single-chip computer as the processing core and the signal op-amp processing to realize the magnetic signal conditioning. In order to ensure the normal operation of the testing system under high impact and strong magnetic environment, the mechanical shell of the testing system is strengthened by adjusting and processing, and the anti-high impact is realized by strengthening the filling and adding mechanical filter pad. The electromagnetic shielding shell is designed to make the whole testing system closed, so as to avoid the interference of the magnetic field flowing into the hole slot to the testing system. The static magnetic field test in laboratory and the penetration test of hard target in shooting range are carried out by using the test system. The test results show that the test system can accurately record the three-dimensional magnetic induction signal and the whole trajectory three-dimensional acceleration curve of the penetration process, and can work normally under high impact load to meet the needs of the test.