Acceleration recording apparatus used for ejection test under large impact

Abstract

The invention provides an acceleration recording apparatus used for an ejection test under large impact. The apparatus comprises a pedestal, a processing circuit board, an accelerometer circuit, a power supply monitoring circuit, an acquisition processing circuit, a sensor circuit, a signal setting circuit and a memory circuit, wherein the power supply monitoring circuit comprises a power supply detection chip and emits a control command through a processor to obtain voltage and current parameters of a battery. A high-strength titanium-magnesium alloy material is employed, the overall antivibration capability of the apparatus is enhanced, dampers of an acquisition processing circuit board are installed on a base support, and thus impact caused to circuit components in an impact process is further reduced. Therefore, under the condition of the large impact, the acceleration recording apparatus can be repeatedly used for carrying out an accurate axial acceleration measurement on the ejection test, after measurement ends, measurement data is read through host software, through multiple application under the condition of the large impact, the progress of the ejection test is accelerated objectively, and the test cost is also saved.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of acceleration recording devices, in particular to an acceleration recording device for ejection tests under large impacts. [0003] 【Background technique】 [0004] The ejection test acceleration recording device is used to measure the axial acceleration of the projectile when the projectile is ejected vertically, so the accuracy and reliability of the acceleration recording device directly affect the accuracy of the acceleration measurement when the projectile is ejected. [0005] Ordinary accelerometers are mainly used in shock and vibration detection records during transportation, fragility tests, and impact tests on train coupler connections. Although they can record the acceleration of the impact process, they are far from meeting the large impact requirements of the shell ejection test. . However, some existing studies on the measurement of the axial acceleration of projectile ejection are only at the ...

AI Technical Summary

Problems solved by technology

[0005] Ordinary accelerometers are mainly used in shock and vibration detection records during transportation, fragility tests, and impact tests on train coupler connections. Although they can record the acceleration of the impact process, they are far from meeting the large impact requirements of the shell ejection test.

However, some existing studies on the measurement of the axial acceleration of projectile ejection are only at the theoretical level, without considering the damage to the performance of the measurement device due to large impact factors in engineering practice, and the impact of the reusability of the measurement device

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