Ion mobility sensor system
US8357893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2009 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Jun 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/622
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ion mobility sensor system including an ion mobility spectrometer and a differential mobility spectrometer coupled to the ion mobility spectrometer. The ion mobility spectrometer has a first chamber having first end and a second end extending along a first direction, and a first electrode system that generates a constant electric field parallel to the first direction. The differential mobility spectrometer includes a second chamber having a third end and a fourth end configured such that a fluid may flow in a second direction from the third end to the fourth end, and a second electrode system that generates an asymmetric electric field within an interior of the second chamber. Additionally, the ion mobility spectrometer and the differential mobility spectrometer form an interface region. Also, the first end and the third end are positioned facing one another so that the constant electric field enters the third end and overlaps the fluid flowing in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.