空气压缩仪是中等职业技术学校和中学物理教学演示实验“做功是改变内能的一种方式”中常用的实验仪器。它的原理是由于汽缸的空气,在迅速下压活塞时被急剧压缩,活塞对空气做的功转化为空气的内能,使空气温度升高,达到乙醚的着火点从而使得沾有乙醚的棉团燃烧。 Air Compressor is a secondary vocational and technical schools and high school physics teaching demonstration experiment “doing work is a way to change the internal energy ” in the commonly used experimental apparatus. Its principle is due to the cylinder air, the rapid compression of the piston is rapidly compressed, the piston to the air to do the work into the internal energy of the air, so that the air temperature, reaching the ether point of fire so that stained with ether of cotton combustion.