多型号高精度数字多用表检定系统设计及实现

On the design and realization of multi-type high-precision digital multimeter verification system

针对数字多用表检定系统存在的测试程序可扩展性差、通用性不强的问题,在深入研究数表计量标准领域中校准仪器的原理及功能的基础上,以数字多用表检定规程为依据,设计开发了一套用于校准多种型号高精度数字多用表的自动检定系统。首先介绍了检定系统的设计情况,详细阐述了系统组成原理、软硬件开发过程,并给出了仪器控制所需的几个关键函数。实验表明,系统完全可行且性能优越,可完成多种型号数字多用表的自动化检定,具有良好的稳定性、可靠性,提高了数表计量标准的计量检定能力,具有较高的实用价值。

For improving the extensibility and generality of automatic calibration system for digital multimeter,on the basis of the in-depth study on the principles and functions of calibration instruments in the measurement calibration field,the verification regulation of digital multi-meter is taken as the reference in the design of a set of digital verification system for multi-type high-precision digital multi-meter that is applicable to calibration.First of all,the basic condition of the verification system design is introduced.Next,the principles of the system composition,and the development of the software and hardware are elaborated specifically.It is suggested by experiments that this system is absolutely feasible.Moreover,with superior performance,better stability and reliability,this system which improves the capacity of digital multi-meter verification is of great practical value.