HIGH-PRECISION AC-DC TRANSFER STANDARDS AT ETL

被引：17
|
作者：
SASAKI, H
TAKAHASHI, K
KLONZ, M
ENDO, T
机构：
[1] JAPAN ELECT METERS INSPECT CORP,MINATO KU,TOKYO 108,JAPAN
[2] PHYS TECH BUNDESANSTALT,W-3300 BRAUNSCHWEIG,GERMANY
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1993年 / 42卷 / 02期
关键词：
D O I：
10.1109/19.278635
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：
A new measurement system has been developed in order to re-evaluate the present ac-dc transfer standards of the Electrotechnical Laboratory (ETL). The new measurement system consists of a high-precision comparator system and a modified fast-reversed dc source. The ac-dc transfer differences of thermal transfer standards were intercompared using the comparator system with a resolution better than 1 ppm. The absolute ad-dc transfer differences of single-junction thermal converters (SJTC's) were evaluated in terms of a multijunction thermal converter and by the modified fast-reversed dc method. The results obtained by the two methods agreed within 1 ppm.
引用
收藏
页码：603 / 607
页数：5
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