The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 02, 2016

Filed:

Jan. 12, 2009
Applicants:

Wolf Münchmeyer, Ehra-Lessien, DE;

Bert Ungethüm, Schwerin, DE;

Andreas Walte, Schwerin, DE;

Inventors:

Wolf Münchmeyer, Ehra-Lessien, DE;

Bert Ungethüm, Schwerin, DE;

Andreas Walte, Schwerin, DE;

Assignee:

Airsense Analytics GmbH, Schwerin, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/64 (2006.01); G01N 27/62 (2006.01); H01J 49/00 (2006.01);
U.S. Cl.
CPC ...
G01N 27/624 (2013.01); G01N 27/622 (2013.01); H01J 49/0027 (2013.01); H01J 49/0031 (2013.01);
Abstract

Methods and devices identify gases and allow immediate and simultaneous detection of the chemical compounds to be tested. The methods and devices use a function of the electric field strength, for identification the material-specific mobility and simultaneously the change in this mobility, which is achieved in that due to the resulting electric field, each ionized molecule has a drift velocity which is partially increased or decreased, wherein the resulting electric field is a DC field, on which an asymmetric AC field is superimposed. The methods and devices for the detection and identification of gases are used to identify and detect chemical compounds, such as, explosive and/or unhealthy substances or compounds, which may be detected in very small concentrations.


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