The experimental results show that the outputed voltage is from several millivolt to hundreds of millivolt and alters when the tensity of NO2 changed.

• 在实验中对NO2气体进行检测，结果表明：传感器的输出霍耳电动势在几毫伏到几百毫伏之间，且随待测气体浓度变化而变化。