潜艇舱室噪声对信号识别及算题作业的影响

Effect of Noise in Submarine Compartment on Signal Discrimination and Arithmetic Performance.

为探讨潜艇舱室噪声对工效的影响，对１３名被试者进行了实验。结果表明，当舱室噪声由中等强度（７３ｄＢＡ）增至较高水平时（８５～９２ｄＢＡ），信号识别和算题作业均一致出现持续下降，但在更高的噪声水平（９６ｄＢＡ）时，工效的下降趋于稳定。噪声级为８５ｄＢＡ时工效受到明显损害。对两种作业工效的比较表明，在不同的水平下，噪声对具有紧张作业的工效（算题）干扰作用更大。

To study the effects of noise level in submarine compartment on signal discrimination and arithmetic performance,experiments were carried out on 13 subiects.The results showed that as noise level raised from moderate (73 dBA)to higher levels (85～92 dBA),work efficiency showed a progressive decrease,but when noise level reached 96 dBA the decrease in efficiency reached a steady state. The results indicated that impairment of efficiency apparently occurred at a level of 85dBA and that the interference effect of noise was more pronounced on task performance with mental strain.