数字式喉音图仪前置放大器的研制

NEW PRE-AMPLIFIER OF DIGITAL LARYNGEAL SOUND FIGURE INSTRUMENT

介绍了一种新型的用于喉音信号采集的前置放大器 ,该放大器噪声小 ,共模抑制比高 ,频率响应好 ,性能价格比高 ,还可应用于其他人体信号检测系统中。

A new pre amplifier that used to gather the laryngeal sound signal was introduced. This pre amplifier has low noise, good frequent response characteristics,high common mode rejection ratio and low cost performance.It can be also applied to other body signal measuring.