Drift tube ion mobility spectrometer for aerosol measurement
US9207207B2 · kind B2 · utility
1Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2013 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | May 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A drift tube ion mobility spectrometry sample introduction scheme allows introduction of a sample packet at ground voltages. The sample packet of ionized particles is captured by subjecting particles within a defined region to an electric field at an elevated voltage. The ionized particles in the captured packet then migrate through the drift tube down the voltage gradient according to their electrical mobility. The particles are directed to a high sensitivity detector, such as a condensation particle counter (CPC), for detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.