对10V直流电压参考标准校准方法的探讨

Approach of calibration method for 10V DC voltage reference standard

介绍３种校准１０Ｖ直流电压参考标准的方法，并对３种校准方法进行了详细的误差分析。第１种方法是由美国ＦＬＵＫＥ公司生产的３３５Ａ型直流标准电压源，７２０Ａ型Ｋ－Ｖ分压器，８４５ＡＲ型零值检测器和０．０００２级控温标准电池构成校准系统，其传递误差小于１×１０￣（－６）。在该方法中用英国ＤＡＴＲＯＮ公司的４０００Ａ型直流标准电压源取代３３５Ａ，其传递误差可降低到０．４×１０￣（－６）。第２种方法是由７２０Ａ型Ｋ－Ｖ分压器，８４５ＡＲ型零值检测器和０．０００２级控温电池构成校准系统，其传递误差小于０．３×１０￣（－６）。第３种方法是由３３５Ａ型直流标准电压源，７２０Ａ型Ｋ－Ｖ分压器、８４５ＡＲ型零值检测器，１５５型零值检测器和０．０００２级控温电池构成校准系统，其传递误差小于０．２×１０￣（－６）。在同样的条件下，对上述３种方法进行了比对（３种方法所用的标准电池为同一１０只组电池），比对结果表明，３种方法之间的误差小于０．３×１０￣（－６）。

This article will discuss three calibration methods for 10V DC voltage referencestandard and detailed error analysis for three calibration methods. The first method istaken as follows the calibration system with the dissemination error less than 1 × 10￣(-6),isformed of 335A DC standard voltage source produced by U.S FLUKE company, 720AK-V voltage divider,845AR null detector and 0.0002 class of tempreture control standardbattery.By this method,4000A DC standard voltage source produced by U.K DATRONcompany is used to replace 335A,with the dissemination error 0.4×10￣(-6).The second meth-od is taken as follows the calibration system, with the dissemination error less than 0.3×10￣(-6),is formed of 720A K-V voltage divider, 845A null detector and 0.0002 class oftempreture control battery. The third method is taken as follows: the calibration system,with the dissemination error less than 0.2×10￣(-6), is formed of 335A DC standard voltagesource, 720A K-V voltage dividor and 0.0002 class of tempreture control battery. In com-parison among these three methods mentioned above in the same condition, the resultshows the error among these three methods is less than 0.3 × 10￣(-6)