Method and device for locating accumulations of pollutants

Details Method and device for locating accumulations of pollutants Method and device for locating accumulations of pollutants

1995-07-14

1998-01-13

Noland, Thomas P.

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

73 3102, 7386434, G01N 122, G01N 114

Patent

active

057082189

ABSTRACT:
A method for locating an accumulation of pollutants includes continuously guiding a conveying medium in mutually opposite directions through two legs of a pollutant-permeable collecting line, the legs being placed closely adjacent and mutually parallel as forward and return lines. A detection is performed as to whether or not the conveying medium contains a pollutant at an outlet of the collecting line. A location of an accumulation of pollutants at the collecting line is determined from a difference in time between two successive pollution detections at the outlet of the collecting line. A device for locating accumulations of pollutants includes a collecting line being permeable to a pollutant and having two legs being closely adjacent, mutually parallel and switched as forward and return lines. A continuously operating pump is connected to the collecting line for conveying a conveying medium through the collecting line. A sensor is connected to the collecting line for detecting a pollutant. An evaluation unit is connected to the sensor.

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Patents Abstracts of Japan, P-683, Apr. 2, 1988, vol. 12, No. 100 & JP-A-62-233721 (Nissan) Oct. 14, 1987.

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