This paper describes the design of a portable draft pressure tester and analyses its architecture and the working principle of its main module, and also discusses its accuracy.
本文介绍一种便携式微差压测试仪的设计，详细分析它的系统结构以及主要模块工作原理，并对它的精度进行讨论。
This paper introduces the function of a kind of portable cable tester in brief. It also introduces how to apply the fuzzy information processing theory, and gives out the solution of the difficulties.
简述了便携式电缆检测仪的功能，主要介绍了模糊理论的具体应用，指出了难点问题的解决办法。
This paper presents a portable on - line insulation parameter tester. The measurement principle, configurations of hardware and software, main specifications and testing results are described.
本文对便携式绝缘参数在线测试仪的研制进行了说明，叙述了测试原理及电路的组成，对软件的设计也进行了简述并给出了测试仪的主要参数。
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