室内手枪靶场噪声控制的目的是:1.保护射击运动员的健康,防止听力损伤;2.降低射击练习时强噪声的作用时间,避免过早出现疲劳;3.为教练员、裁判员和观众创造一个都能接受的声环境。 为了有效地控制噪声,采用强吸声、价廉,且具有装饰效果的宽频带吸声结构、多种亥姆霍兹共振吸声器和盘式空间吸声体,为防止毗邻靶位间噪声干扰设置了可转动的声屏障,取得了成效:在练习时,运动员接受到的枪声低于100dBA; 观众厅内最大声级低于90dBA;厅内空场和满场混响时间分别为1.Os和0.7s,混响声的降低量△L =8.2dB。 在近两年的使用中,得到了运动员、教练员的好评,为我国射击运动员在奥运会上取得优异的成绩,起到积极的作用。 Indoor pistol range noise control purposes are: 1. To protect the health of shooting athletes to prevent hearing impairment; 2. Reduce the shooting time of the strong noise of the practice, to avoid premature fatigue; 3. For coaches, referees and spectators to create One can accept the sound environment. In order to effectively control the noise, using strong sound absorption, low cost, with decorative effects of broadband sound absorption structure, a variety of Helmholtz resonance sound absorber and disk space absorber, in order to prevent the noise between adjacent targets Disturbance set the rotating sound barrier, and achieved results: In practice, the gunners received less than 100dBA; auditorium maximum level less than 90dBA; venues and full field reverberation time were 1 Os and 0.7s, the reduction of the reverb sound △ L = 8.2dB. In the past two years of use, get the praise of athletes, coaches for our country’s shooting athletes achieved excellent results in the Olympic Games, play a positive role.