采用电气爆破(特别是大量电雷管爆破),对于电雷管的检验是一项细致而又重要的工序。我矿二区中深孔爆破组工人和技术人员,本着自力更生的精神,自己设计和装配了一台交、直流两用检验电管的电流控制器。使用证明此仪器构造简单、操作安全、方便、可靠。仪器调压变压器、硅(或硒)整流器,各种量程的电流表(交流和直流)、可变电阻及各种转换 The use of electrical blasting (especially a large number of electric detonator blasting), the inspection of the electric detonator is a meticulous and important process. I mine two areas of deep-hole blasting group of workers and technical staff, in the spirit of self-reliance, their own design and assembly of a cross, DC dual current test tube current controller. Proof of use This instrument is simple structure, safe operation, convenient and reliable. Instrument regulator, silicon (or selenium) rectifier, ammeter of various ranges (AC and DC), variable resistance and a variety of conversion