标定电流对标度值测量的影响和数字表标度值测量稳流仪  

INFLUENCE OF CALIBRATED CURRENT ON SCALE VALUE ADN DIGITAL CURRENT STABILIZER

作　　者：李铁[1] 朱兆才[1] 

机构地区：[1]大连市地震办公室,大连地震台

出　　处：《东北地震研究》1996年第3期64-66,共3页Seismological Research of Northeast China

摘　　要：本文讨论了标定电流对标度值测量的影响，并介绍了研制的数字表标度值稳流仪及其使用效果。该仪器标定电流在４—１９ｍＡ范围可手动选定，电流稳定精度小于０．０２ｍＡ，电流升、降的转换时间约３０ｓ。仪器结构紧凑，操作简便，可以满足地磁台工作需要。Influence of calibrated current on scale value is discussed, and digital current stabilizer and its applied effect are introduced in this paper, respectively.Calibrated current of the instrument can be selected by hand in measuring range 4mA-19mA,the stable accuracy of current is less than 0.02mA.Transformed time between rising and falling current is about 30S. The structure of the instrument is compactly laid out,and operation is simple.It can satisfy the need of geomagnetic station.

关 键 词：电流表 标度值 标定电流 数字式电流表 电流测量 

分 类 号：TM933.151[电气工程—电力电子与电力传动]