摘要
在介绍声级测量的基础上,论述了便携式数字声级计的工作原理、主要电路及特点。与传统的指针式声级计相比,便携式数字声级计的制造成本几乎没有增加,可声级计的功能、附加值却大为增加,提高了产品的竞争力和市场占有率。
On the basis of the introducing soud measurement,it deals with working principle/main circuit and characteristic of portable digital audiometer. As compared to traditional analog audiometer, the cost to produce of portable digital audiometer has little,but the function and affaxation value of audiometer increase greatly. It improves competitive power and occupancy ratio of the products.
出处
《自动化与仪器仪表》
2007年第4期59-60,66,共3页
Automation & Instrumentation
关键词
噪声测量
声级计
模数转换
Yawp measure
Audiometer
Anolog and digit convert
