【摘要】 为了同时测量焦化塔的液位和泡沫高度,设计了一种双能γ射线焦化塔液位在线测量仪。介绍了该测量仪的工作原理,分析了高速集成单道幅度分析器和高性能A/D转换器的电路及特点,讨论了液位曲线和泡沫高度曲线。该测量仪电路简洁,工作稳定,测量精度高。更多还原

【Abstract】 To measure both the liquid level of Cokecracking Tower and the height of foam,an on-line measurement instrument of the liquid level for Coke-cracking Tower based on dual-energy γ-ray transmission is designed.The operational principle of the measurement instrument is introduced,the circuit and characteristic of the integrated single channel pulse height analyzer and those of high performance ADC are analyzed,and the measured real-time curves of liquid level and foam height are discussed.Having the advantages of simplified circuit,stable operation and high precision measurement et al.,the measurement instrument can meet the requirement of production better.更多还原