绝大多数医学仪器都要发出噪声,长期接受噪声的刺激可以导致高血压病、胃病及其它疾病,影响工作效能。同时,噪声还可以影响激励电流的稳定性,危害甚大。中国大百科全书环境科学卷提出:脑力劳动时,环境噪声最大容许值是60分贝,而我们的仪器室常常大大超过这个值,为此,我们自制了一种简易、经济的隔声罩,现介绍如下: The vast majority of medical equipment should make noise, long-term noise stimulation can lead to hypertension, stomach and other diseases, affecting work efficiency. At the same time, the noise can also affect the stability of the excitation current, a great harm. Encyclopedia of Environmental Science Volume proposed: mental work, the maximum allowable value of environmental noise is 60 dB, and our instrument room often much higher than this value, for which we made a simple, economical sound insulation cover, now Introduced as follows: