首都钢铁公司在新2号高炉上应用 LWJ-77型γ射线料位计无料钟炉顶测量高炉料罐料位取得了成功。一、仪器的组成及工作原理γ射线料位计由放射源、探头及主机三部分组成(图1)。放射源采用100毫居的钴-60;探头包括计数管和射极跟随器;主机包括整形单元、率表单元、跟随触发器、继电器拖动单元和继电器单元等部分。 Beijing Capital Iron and Steel Company in the new No. 2 blast furnace application LWJ-77-type γ-ray level meter without bell-shaped top of the blast furnace tank material level has been successful. First, the composition of the instrument and working principle Gamma ray level gauge by the radioactive source, the probe and the host of three parts (Figure 1). The radioactive source uses 100 milliliters of Cobalt-60; the probe includes a counting tube and an emitter follower; and the main unit includes a plastic unit, a rate meter unit, a follower trigger, a relay drag unit and a relay unit.