SJZ-1型激光指向仪是利用高压直流电激发氦氖激光管,发出方向性好、亮度高、单色性和相干性好的红光,在离工作面较远的地方为井巷机械化快速掘进测量定点的仪器。指向仪有调整装置,可利用望远镜将激光在工作面聚焦为较小光点以提高指向精度。并有旋转机构和水准器,便于检查其准确度。为安装使用方便,我们采用了无变压器的简易倍压整流电路,电源直接装在仪器 SJZ-1 laser pointer is the use of high-voltage DC helium-neon laser tube, issued a good direction, high brightness, good monochromatic and coherent red light, far away from the face mechanized fast tunneling Measurement of fixed-point instruments. Pointing instrument has a tuning device, the telescope can be used to focus the laser at the working surface as a smaller spot to improve pointing accuracy. And rotating mechanism and level, easy to check its accuracy. Easy to install and use, we use a transformer-less simple voltage doubler rectifier circuit, the power directly installed in the instrument