【摘要】 讨论了直流电位差计恒压供电中存在的不足以及恒流供电具有的优点,分析了实用恒流源的性能,提出了供电恒流源应满足的要求,并介绍了恒流源的实际应用。用恒流源为直流电位差计供电可以简化操作过程,提高工作效率。更多还原

【Abstract】 The weakness of supplying permatent votage for DC potentimeter is discussed,the advantage of supplying permatent current is described,and the property of permatent current source is analyed.The requiment satisfied of permanent current source is given,and the use is introduced.The supply electricity using permanent current source for the DC potentiometer can simplify working processes and raise working efficiency.更多还原