Collection surface for electrodes in photoionization detector
US10996197B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2016 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Feb 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/66
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments relate generally to systems and methods for shielding electrodes (204,205,504,505) within a photoionization detector (100). A photoionization detector (100) may comprise an ultraviolet radiation source (130); one or more detector electrodes (204,205,504,505); one or more collection surfaces (224,225,524,525) extending vertically from the detector electrodes (204,205,504,505); and a shielding material (206,506) located between the ultraviolet radiation source (130) and the one or more detector electrodes (204,205,504,505), wherein the ultraviolet radiation (130) does not directly impinge on at least a portion of the one or more detector electrodes (204,205,504,505). The one or more collection surfaces (224,225,524,525) may comprise a surface area that is not covered by the shielding material (206,506).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.