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我所最近研制成功的HY-E-2型限幅式通讯隔声耳罩,在噪声间隙能清晰地听到对方讲话,不影响佩戴头盔和通讯系统联用,能有效地抑制500Hz以下和5000Hz以上的低、高频噪声。经4个单位在175dB左右的脉冲噪声环境和130dBA左右的稳态噪声环境中使用2个
The HY-E-2 Limited-size Communication Acoustic Earmuffs recently developed by our company can clearly hear each other’s voices in the noise gap without affecting the joint use of helmets and communication systems and can effectively suppress the noise below 500Hz and 5000Hz Above the low and high frequency noise. After 4 units in about 175dB impulse noise environment and 130dBA steady-state noise around the use of two