为解决脉冲功率装置中D-dot电容分压器在低电压下校准高电压下使用,不可避免地产生分压比线性度问题,提出此测试方法。基于D-dot电容分压器和RC积分器电压测试系统的分压原理,利用PSPice仿真软件建立冲击高压下的等效电路模型,将冲击高...为解决脉冲功率装置中D-dot电容分压器在低电压下校准高电压下使用,不可避免地产生分压比线性度问题,提出此测试方法。基于D-dot电容分压器和RC积分器电压测试系统的分压原理,利用PSPice仿真软件建立冲击高压下的等效电路模型,将冲击高压试验装置中经过上级溯源的标准电容分压器作为100 k V以下D-dot线性度和分压比的量传标准。实验结果证明:该方法准确有效,能够解决100 k V以下D-dot分压器分压比线性度的测试问题。展开更多
In this article, we discuss some properties of a supersymmetric invariant bilinear form on Lie supertriple systems. In particular, a supersymmetric invariant bilinear form on Lie supertriple systems can be extended to...In this article, we discuss some properties of a supersymmetric invariant bilinear form on Lie supertriple systems. In particular, a supersymmetric invariant bilinear form on Lie supertriple systems can be extended to its standard imbedding Lie superalgebras. Furthermore, we generalize Garland's theory of universal central extensions for Lie supertriple systems following the classical one for Lie superalgebras. We solve the problems of lifting automorphisms and lifting derivations.展开更多
文摘为解决脉冲功率装置中D-dot电容分压器在低电压下校准高电压下使用,不可避免地产生分压比线性度问题,提出此测试方法。基于D-dot电容分压器和RC积分器电压测试系统的分压原理,利用PSPice仿真软件建立冲击高压下的等效电路模型,将冲击高压试验装置中经过上级溯源的标准电容分压器作为100 k V以下D-dot线性度和分压比的量传标准。实验结果证明:该方法准确有效,能够解决100 k V以下D-dot分压器分压比线性度的测试问题。
基金supported by the NSFC(10871057)NSFJL(20130101068JC)supported by Fundamental Research Funds for the Central Universities of China and SRFHLJED(12521157)
文摘In this article, we discuss some properties of a supersymmetric invariant bilinear form on Lie supertriple systems. In particular, a supersymmetric invariant bilinear form on Lie supertriple systems can be extended to its standard imbedding Lie superalgebras. Furthermore, we generalize Garland's theory of universal central extensions for Lie supertriple systems following the classical one for Lie superalgebras. We solve the problems of lifting automorphisms and lifting derivations.