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A Calibration Method of the Zero-Drift for Testing System of Electronic Transformer Characteristics

机译：电子变压器特性测试系统零漂的校准方法

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摘要

Drift problem exists widely in electronic transformer test systems, and is found to have significant effect on describing the steady state characteristics and dynamic characteristics for electronic transformer. The output offset and drift problem of the high-performance and high-precision amplifier is the major cause leading to a drift in characteristic testing system. In this paper, a mixed automatic drift compensation method for dc amplifiers has been presented. By using hardware circuit to measure the drift, with software algorism compensation for several times, the drift of the electronic transformer test system has been solved. The proposed method has been verified by developing an electronic transformer test system.
机译：电子变压器测试系统中的漂移问题很广泛，并且发现对描述电子变压器的稳态特性和动态特性具有显着影响。高性能和高精度放大器的输出偏移和漂移问题是导致特性测试系统漂移的主要原因。本文介绍了DC放大器的混合自动漂移补偿方法。通过使用硬件电路测量漂移，随着软件算法补偿多次，已经解决了电子变压器测试系统的漂移。通过开发电子变压器测试系统已经验证了所提出的方法。

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