Measuring and testing – Liquid analysis or analysis of the suspension of solids in a...
Patent
1998-03-30
2000-08-08
Fuller, Benjamin R.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
73 3, 73 38, 7386474, G01M 304, G01M 320
Patent
active
06098449&
ABSTRACT:
A given volume of a test substance is provided into a monitoring line which is filled with a test medium (e.g. air). The line extends along a path for determining concentration profiles of certain substances along the path. For the purpose of transporting a column of test medium through the monitoring line, the pressure in the monitoring line is increased by switching on a pressure pump or, for the same purpose--in an alternative embodiment--the pressure is reduced by switching on a suction pump. A given metering volume of the test substance is automatically released in the monitoring line when the pressure goes beyond a given pressure threshold. The release of the given metering volume of the test substance, after it has been carried along the monitoring line by the column of test medium, results in a test peak for reference reading calibration in a sensor which responds to the test substance and which is connected to the monitoring line.
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Japanese Patent Abstract No. 62076425 (Akira et al.), dated Apr. 8, 1987.
Franze Klaus
Jax Peter
Knoblach Walter
Fuller Benjamin R.
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
Stemer Werner H.
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