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发明公开
EP0684470A2 Method and apparatus for gas analysis 失效
Verfahren und Vorrichtung zur Gasanalyse。

Method and apparatus for gas analysis
摘要：
The invention relates to a method and an apparatus for gas analysis, particularly for calibrating gas analysis devices with calibration gases containing very low concentrations of a liquid sample vapor at a ppb level. According to the invention, the method comprises the following steps:

- putting in the concentration of a sample gas in a calibration gas (18) into a computer system (40) to permit the system to calculate the flow rate (L3) of a zero gas (20) to be mixed with sample gas,
- supplying the zero gas (20) from a zero gas source (19) to a main tube (12),
- supplying the sample gas from a sample gas generating device (6) to the main tube (12) to mix the sample gas with the zero gas (20) in the main tube (12),
- controlling the flow rate of the zero gas (20) through flow control means (25) of the zero gas (20) by a set flow rate signal (43) of the calculated flow rate (L3) fed from the computer system (40) the thereby generate the calibration gas (18) to an analysis device (41), and
- feeding a data input-starting signal (46) from the computer system (40) to the analysis device (41), and feeding a data signal (47) from the analysis device (41) to the computer system (40).
摘要（中）：

本发明涉及一种用于气体分析的方法和装置，特别是用于使用含有非常低浓度的ppb级液体样品蒸汽的校准气体校准气体分析装置。 根据本发明，该方法包括以下步骤：将校准气体（18）中的样品气体的浓度放入计算机系统（40）中，以允许系统计算零气体的流量（L3） （20）与样品气体混合，将零气体（20）从零气体源（19）供应到主管（12），将样品气体从样品气体发生装置（6）供应到主管 （12）将样品气体与主管（12）中的零气体（20）混合，通过零气体（20）的流量控制装置（25）将零气体（20）的流量控制为 设置从计算机系统（40）馈送的计算流量（L3）的流量信号（43），从而将生成校准气体（18）送到分析装置（41），并且馈送数据输入启动信号（46 ）从计算机系统（40）传送到分析装置（41），并将数据信号（47）从分析装置（41）馈送到计算机系统（40）。

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