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    • 2. 发明申请
    • PROCESS AND DEVICE FOR FEEDING A QUANTITY OF A SUBSTANCE
    • 方法和设备提供了一个物质的体积
    • WO1997013134A1
    • 1997-04-10
    • PCT/DE1996001743
    • 1996-09-16
    • SIEMENS AKTIENGESELLSCHAFTKNOBLACH, WalterFRANZE, KlausJAX, Peter
    • SIEMENS AKTIENGESELLSCHAFT
    • G01M03/22
    • G01M3/22F17D5/04Y02E60/34
    • The invention pertains to a process and device for feeding a predetermined quantity of a test substance (H2) into a monitoring line (2) filled with a test medium (such as air) and used for determining concentration profiles along a given path. In order to move a column of the test medium through the monitoring line (2), the pressure (p) in the monitoring line (2) is raised by actuating a pressure pump or, for the same purpose in an alternative embodiment, lowered by actuating a suction pump (12). A predetermined metered quantity of the test substance (H2) is released automatically when the pressure (p) in the monitoring line (2) passes a predetermined threshold value. Release of the predetermined metered quantity of the test substance (H2), once the latter has been carried by the test medium column, results in a test-peak in a sensor (11) which reacts to the test substance (H2) and is connected to the monitoring line (2). Application: pneumatically controlled test-peak generator.
    • 本发明涉及一种方法和装置用于在提供测试物质(H 2)的预定体积与测试介质(例如,空气),其被设置用于浓度分布沿路线的确定填充监控线(2)。 用于通过监控线(2)中的压力(p)的监控线(2)增加在压力泵或为了相同的目的切换输送测试介质的柱的目的 - 在一个备选实施例 - 通过接通的抽吸泵(12)减小。 经过预定的极限值为在监视管线(2)中的压力(P)时的测试物质(H 2)的预定的剂量体积被自动释放。 被检物质(H 2)的预定计量体积的释放导致由Prüfmediumsäule夹带到测试峰中响应于测试物质(H 2),并监控线(2)连接的传感器(11)。 关键词:气动控制的测试峰值发生器。