国产电子式井下压力计的发展

阐述了国产压力计的发展过程，说明了由单片机８０Ｃ３１为核心芯片，选用应变式压力传感器转向第二代压力计，采用地单片机、Ａ／Ｄ片，数据存储器。经过发展，国产压力计在温度误差修正技术方面有所提高。功能上有一些进步，在元件成本降低及简单生产工艺等方面有了较大的进步。但整体技术水平没有突破，目前国内使温方向发展。而目前影响国内压力计发展的主要因素是，压力计的行业标准存在问题，应忙修改现行的压力计两个行业标准

Development of Domestic Pressure Meter in Electrical Manner

The development and progress of domestic pressure meter is introduced in this paper.The second generation pressure meter has adopted the strain pressure sensor and single bo computer and datu memory. Although itS ermr cormction technolgy and function are imProved, its pnduction coot decreased and its peduction craft simplified, to a certainextent, itS enhre level has not got a hndthrough. The present used high quality pressure meter mainly depends on theinput form abroad. The reliability, precision and high temPeratUre proPerty of the domestic pressure meter should be improved and its two industry standards should be revised.