| 冯斌,石秀华.双三角阵声靶测试系统研究[J].,2012,31(2):140-144 |
| 双三角阵声靶测试系统研究 |
| Studies of acoustic target with two equilateral triangle arrays |
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| 中文摘要: |
| 声靶容易构成较大的测试靶面,常用在大口径弹药的立靶密集度测试中。为了消除声波在空气中传播速度变化对声靶测试精度的影响,采用双三角阵声阵列模型使测量公式中不再引入声波速度。为了使测试系统紧凑、可靠,整个测试系统由双三角阵列、多通道数据采集仪、计算机系统构成。对测试系统进行了实弹射击实验,在2 m×2 m靶面内,弹着点测量误差为±10 mm。 |
| 英文摘要: |
| The acoustic target can form a larger test area easly,and it is commonly used to test the vertical target dispersion of projectiles with large caliber.The measurement precision of the acoustic target is affected by the velocity changes of the sound waves in the air.In order to avoid the influence of the speed of sound wave,a double-triangle array model is adopted in the measuring formulas,in which sound wave velocity is not needed.The whole test system is composed by double-triangular arrays,a multi-channel data acquisition instrument,and a PC.And the structure of the test system is compact and reliable.The test precision is verified by the real firing.If the area of the target is within 2 m×2 m,the errors from the impacting points to the projectile is about ±10 mm. |
| DOI：10.11684/j.issn.1000-310X.2012.02.014 |
| 中文关键词: 声靶 双三角阵 立靶密集度 弹着点 |
| 英文关键词: Acoustic target Two equilateral triangle array Vertical target dispersion The impacting points of the projectile |
| 基金项目: |
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