我厂有一种产品叫风刻笔,外型象一支钢笔,可以在金属上和硬质材料(如玻璃、陶瓷等)上刻字。高压空气使笔头产生往复冲击运动,这就可以刻字。但因为笔头往复振动的振幅太小,只有0.2毫米左右,利用光电法和电磁 Our factory has a product called wind engraving pen, looks like a pen, you can metal and hard materials (such as glass, ceramics, etc.) on the lettering. High pressure air makes the pen head reciprocating impact movement, which can be lettering. But because the amplitude of reciprocating vibration is too small, only about 0.2 mm, the use of optoelectronic and electromagnetic