Lock-in detector for telecommunication cable measurements

被引：0
|
作者：
Owczarek, Tomasz [1 ]
机构：
[1] Warsaw Univ Sci & Technol, Inst Syst Elekt, PL-00665 Warsaw, Poland
来源：
PRZEGLAD ELEKTROTECHNICZNY | 2010年 / 86卷 / 11A期
关键词：
lock-in detection; longitudinal balance;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper presents device developed for measurement of longitudinal balance in telecommunication cables for frequencies from 20 kHz to 2 MHz. There is described a method used for measurement of low level differential signal in the presence of high level common signal for specified range of frequencies. Lock-in detector based on electronic switch is shown in details and measurement of signal magnitude is described. (Lock-in detector for telecommunication cable measurements).
引用
收藏
页码：204 / 206
页数：3
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