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本文介绍了ZK－3型便携式工序质量管理仪的工作原理、仪器硬件和软件设计，详细说明了仪器从数显量具中获取数据的过程。同时也介绍了该仪器与上位机或SPC网络系统的联网通信，最后给出了该仪器的应用实例。
This article introduces the working principle, instrument hardware and software design of the ZK-3 Portable Process Quality Manager, detailing how the instrument acquires the data from the digital measuring tool. At the same time also introduced the instrument and the host computer or SPC network system networking communications, and finally gives examples of the application of the instrument.