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本文作者的目的即是要确定单独振动是否会引起听力损失,以及振动是否会加重噪声引起的听力损失。受试者为5名19～20岁听力正常的男大学生。实验共分五组:第一组是单独振动组,第二组为单独振动器噪声组(81分贝),第三组为振动与振动器噪声联合作用组,第四组为对照组,即受试者既不接触噪声也不受振动作用,第五组是振动与工厂噪声联合作用组。测定步骤:首先测定受试者实验前在1千赫兹(Hz)与4千Hz的听阈,然后暴露于噪声、振动20分钟后即刻测定其2分钟
The author’s goal is to determine whether vibration alone can cause hearing loss and whether vibration can increase noise-induced hearing loss. The subjects were 5 male students aged 19 to 20 with normal hearing. The experiment is divided into five groups: the first group is a single vibration group, the second group is a single vibrator noise group (81 dB), the third group is a combination of vibration and vibrator noise, the fourth group is a control group, namely The tester neither touched the noise nor the vibration effect, and the fifth group was the combination of vibration and factory noise. Determination steps: The subjects were first measured before the experiment at 1 kHz and 4 kHz Hz threshold, and then exposed to noise, vibration measured immediately after 20 minutes for 2 minutes