Objective: To develop and analyze ADuC848-based portable parameter tester system.rnMethods: The tester adopts ADuC848 single-chip microcomputer as the processing chip, and usernthe 240 ×128 dot matrix figure LCD for display and function Settings. Results: The tester canrntest multiple parameters including pressure, vacuum, temperature, humidity and gas flow, it meetsrnthe needs on testing and measuring of medical equipment. Conclusion: The tester with highrnaccuracy and simple operation can replace the similar foreign equipment completely.%目的:研制开发基于ADuC848的便携式多参数检测仪,并对整个系统进行详细的分析.方法:该测试仪采用ADuC848单片机作为处理芯片,通过240×128点阵图形LCD显示屏进行显示和功能设置.结果:该测试仪可以对压力、真空度、温度、湿度、气体流量等多种参数进行检测,满足了医疗设备测试与计量的实际需要.结论:多参数测试仪测量精度高、操作简便,完全可替代国外同类仪器.
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