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本文报告小型战术导弹发射时的脉冲噪声对豚鼠听力的影响.我们观察了压力波峰值为143.6～177.0dB SPL,持续时间800～1500ms,频率范围50～8000Hz的强脉冲噪声对豚鼠听器的损伤.结果表明,压力波峰值小于150dB SPL时,26只豚鼠的听觉生理和病理指标未见异常,压力波峰值大于160dB SPL的30只豚鼠听器有不同程度的损伤.
This article reports the effects of impulsive noise on guinea pig hearing during the launch of a small tactical missile.We observed the impaired guinea pig’s hearing impaired by a strong impulsive noise with a peak pressure of 143.6 ~ 177.0 dB SPL, a duration of 800 ~ 1500 ms and a frequency range of 50 ~ 8000 Hz The results showed that the auditory physiological and pathological parameters of 26 guinea pigs showed no abnormality when the pressure wave peak was less than 150 dB SPL, and 30 guinea pigs with pressure wave peak greater than 160 dB SPL had different degrees of damage.