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为了解旅客列车的噪声声级、特性,并为进一步提高旅客的舒适性和乘务人员良好的工作环境提供资料,我们于1986年5月对福州-北京(45/46次)旅客列车进行了噪声声级测量,现整理如下: 一、仪器和方法 1.用国产ND_2型精密声级计。使用前经活塞发声器校准。 2.测量区段的划分:将福州-北京的运行线路分为:福州-鹰潭、鹰潭-无锡、无锡-北京。 3.测点的选择:分别在硬座(4~#车厢)、
In order to understand the noise level and characteristics of passenger trains and to provide further information on the comfort of passengers and the good working environment of flight attendants, we carried out noise tests on the passenger trains of Fuzhou-Beijing (45/46) in May 1986 Sound level measurement, are now organized as follows: First, the instrument and method 1. Made with domestic ND_2-type precision sound level meter. Calibrate with piston sounder before use. 2. Division of the measurement section: the Fuzhou - Beijing operating lines are divided into: Fuzhou - Yingtan, Yingtan - Wuxi, Wuxi - Beijing. 3. Measuring point choice: respectively, in the hard seat (4 ~ # compartment),