对AR-15型枪支背部和动作噪声的抑制效应的量化及其对保护人类听力的影响
Robert J Agnew1, Aaron Alexander2, Carla Goad3
1Fire Protection and Safety Engineering Technology Program, Oklahoma State University, Stillwater, OK, USA.
Journal of occupational and environmental hygiene
|April 30, 2024
概括
即使使用口罩抑制器,AR-15型步枪的机械作用也会产生有害的噪音. 螺栓载体组是一个螺栓载体组.
科学领域:
- 听力学 听力学是指听力学.
- 机械工程 机械工程
- 枪支技术 枪支技术 枪支技术
背景情况:
- 枪支噪音对听力构成重大风险.
- 消音器可以减少枪支噪音,但不能消除所有有害的声音.
- 射手报告说,半自动步枪的机械动作噪音,如AR-15,可以超过压抑的口径噪音.
研究的目的:
- 为了确定是否有有害的噪音水平存在于射手的耳朵,来自压抑的枪支的机械作用.
- 为了独立测量由枪支的作用产生的冲动噪声.
主要方法:
- 一支步枪的枪口被穿过一个合板墙,以隔离和测量来自枪支动作的噪音.
- 来自螺栓载体组的反应和冲击的噪声是特征.
- 为了评估潜在的听力损伤,记录了分贝水平 (dBZ).
主要成果:
- 螺栓载体组返回电池的冲击被记录在132 dBZ.
- 这种程度的冲动噪声有可能导致听力损伤.
结论:
- 气动半自动步枪的机械作用可能会对射手产生危险的噪音水平.
- 即使使用有效的口腔抑制器,听力保护也可能仍然是必要的.
- 进一步研究减轻枪支操作噪声是有必要的.
相关概念视频
00:53Sound Intensity Level
4.2K
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
4.2K
00:53Sound Waves: Interference
3.7K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
3.7K