一个定制的高精度电位计装置的性能

6th IEEE Conference Record., Instrumentation and Measurement Technology Conference Pub Date : 1989-04-25 DOI:10.1109/IMTC.1989.36872

E. Arri, N. Locci, M. Tosi

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引用次数: 0

摘要

作者介绍了在高精度自动电压平衡装置上进行的实验室试验结果。测试系统是基于一个18位的D/A(数字/模拟)转换器和一个专用的零检测器，两者都由一台个人计算机控制。在不同的满量程范围内(0.1-1-10 V)，系统充分利用了D/A转换器所允许的高相对分辨率，平衡的相对分辨率等于3.8*10/sup -6/，对应于所使用的18位D/A转换器的最低有效位。该系统的实现是为了以低成本的元件和短的操作时间实现高精度。实验结果符合设计规范，计量特性，特别是D/A转换器的相对分辨率没有明显下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance of a custom high precision potentiometric device

The authors present the results of laboratory tests performed on an automatic high-precision device for voltage balancing. The system tested is based on an 18-bit D/A (digital/analog) converter and a dedicated null detector, both controlled by a personal computer. The high relative resolution allowed by the D/A converter is exploited by the system in different full-scale ranges (0.1-1-10 V). The relative resolution of balancing is equal to 3.8*10/sup -6/, corresponding to the least significant bit of the 18-bit D/A converter used. The system has been implemented for the purpose of achieving high accuracy with low-cost components and short operating times. The experimental results are in accordance with design specifications, with no significant deterioration of metrological characteristics, especially the relative resolution of the D/A converter.<>

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6th IEEE Conference Record., Instrumentation and Measurement Technology Conference

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