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.
Patent No.:
Date of Patent:
Aug. 06, 2013
Filed:
Jul. 29, 2011
Sinead Marie Matthews, Oxfordshire, GB;
Lesley Anne Parry-jones, Courtenay, GB;
Allan Evans, Oxford, GB;
Sinead Marie Matthews, Oxfordshire, GB;
Lesley Anne Parry-Jones, Courtenay, GB;
Allan Evans, Oxford, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An ion mobility spectrometer includes a plurality of substrates defining a measurement region for receiving a singular laminar gas flow without any carrier or sheath gas. The measurement region includes an ionization region that is continuous with a detection region. An ionizing electrode, which may include a plurality of asymmetric electrodes, produces ions in the gas sample within the ionization region. The ionizing electrode may apply a time varying voltage to the gas sample to generate a time dependent ion production. A field generating electrode generates an electric field to deflect the ions in the gas sample, and a detection electrode array detects the deflected ions within the detection region. A controller is configured to determine ion species based on the detection of ions by the detection electrode array. The detection electrode array may include a plurality of detection electrodes, and the controller may be configured to differentiate ion species based on which ions are detected by which one of the detection electrodes.