电源电压波形特性对光固化机输出光强度的影响  

Effect of power supply's voltage wave-form on light strength of polymerization activators

作　　者：吴书彬[1] 刘文一[1] 

机构地区：[1]北京大学口腔医学院,100081

出　　处：《口腔材料器械杂志》2001年第4期200-201,共2页Chinese Journal of Dental Materials and Devices

摘　　要：目的　研究稳压电源输出电压波形特性对光固化机输出有效光强度的影响 ;方法　给同一只光固化机手机分别输入相等的有效电压值 ,电压波形特性分别为 :直流、正弦交流和可控硅稳压交流 ,测试其输出有效光束强度 ;结果　手机输入电压有效值相等时 ,其输出有效光束强度因输入电压波形特性不同而有明显差别 ;结论　选择可控硅交流稳压电源 ,可显著提高输出有效光强度。Objective To study the effect of different voltage wave shapes on the effect of light strength of the light unit hand piece.Methods The light unit hand piece was inputed with effective voltage with different wave shapes which are generated by dc regulated power supply, sine ac regulated power supply and controlled silicon ac power supply separately. Then the output effective light strength of the light unit hand piece was measured. Results It was found that there was significant differences of effectives light strength of the light unit hand piece among the same effective voltage values.Conclusion The most effective light strength was supplied by controlled silicon ac regulated power supply.

关 键 词：正弦交流电源 直流稳压电源 可控硅交流稳压电源 全波光强度 有效光强度 

分 类 号：R197.39[医药卫生—卫生事业管理]