双向可控硅在702型温控仪上的应用

Application of Double-direction Controlled Sillicon in 702 Temperature Controller

介绍了以双向可控硅取代单向可控硅用于702型精密温度自动控制仪，改造后的控温仅具有电路简洁，控温精度有所提高，制造成本降低的优点。

The double-direction-controlled silicon replaces mono-direction-controlled silicon in temperature controller 702,which gets brief electric way,high precession,and low cost.