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图形化编程语言LabVIEW(Laboratory Virtual Instrument Engineering Workbench),用于一种吸气剂吸气性能定容测试系统。根据理想气体状态方程,在气体体积与摩尔量一定时,气体压强随气体温度的变化而变化,从而影响吸气剂性能的测试。由此,设计了一种温度测量电路,提出了基于理想气体状态方程的温度补偿算法,实现了压强的温度补偿。以吸气剂吸气性能定容测试系统为平台,测试结果表明,该系统稳定可靠、简单实用、拥有友好的人机交互界面,具有温度补偿功能;该温度补偿方法正确可行,效果良好,很好的去除了温度对压强的影响,从而吸气剂性能测试更加准确可靠。
Graphical programming language LabVIEW (Laboratory Virtual Instrument Engineering Workbench), for a getter inhalation performance constant volume test system. According to the equation of ideal gas state, when gas volume and molar amount are constant, the gas pressure changes with the change of gas temperature, thus affecting the performance of getter. Therefore, a temperature measurement circuit is designed, and a temperature compensation algorithm based on ideal gas equation of state is proposed to realize the temperature compensation of pressure. Taking the gettering performance testing system as a platform, the test results show that the system is stable and reliable, simple and practical, and has a friendly man-machine interface with temperature compensation function. The temperature compensation method is correct and effective, Good removal of the impact of temperature on the pressure, so getter performance test more accurate and reliable.