【摘要】 利用塞贝克效应研制成功ZnO半导体气敏传感器。这种新型传感器能够输出0-100mV的直流电压,对于信号的放大与处理将十分方便。在实验中对20×10-6NO2气体进行检测,结果表明:传感器的输出电压(温差电动势),随着待测气体浓度而变化。因此,利用温差电效应制作气敏传感器是一条完全可行的新思路。更多还原

【Abstract】 This ZnO based gas sensor is based on Seebeck effect .It can afford a direct voltage of 0-100mV ,which can be amplified and disposed conveniently.The experimental results show that the output voltage alters when the concentration of NO₂ changed.It shows that this gas sensor based on Seebeck effect is a prospective new type gas sensor.更多还原