The first blasting machine, which uses the IGBT as a high power switch and its subordinate delay measuring sets, has been designed for scaling the delay time about seismo detonators.

• 利用它们对地震勘探专用瞬发电雷管进行了起爆延时测试,测得了高精度起爆延时数据,获取了设计起爆机的理想参数。